S'attaquer aux défis de l'adhésion aux principes de la saine alimentation.

The purpose of this article is to describe the impact of the research program entitled "Adherence to healthy eating recommendations: identification of measures, determinants and interventions". Beyond the main results described in this article, this program had a major impact on the training of graduate students. It was also a unique opportunity to develop and validate measurement tools relevant to nutrition research, and to make them available to the scientific community. Lastly, this program was a catalyst for establishing new collaborations and setting up larger-scale studies.

Physical Activity and Emotional Regulation in Physical Education in Children Aged 12-14 Years and Its Relation with Practice Motives.

This study aimed to analyze the different types of emotional regulation in first and second year high school students according to sex and age. Many adolescents do not meet the minimum WHO recommendations, at a critical stage in which habits that will later be maintained are established. For this reason, physical education is an important means to promote these habits and an understanding of the reasons for their participation in physical education. For this purpose, PLOC-2 was used. The Kolmogorov-Smirnov test was used to determine the characteristics of the data, the ANOVA test to explore the differences between sexes, and the Spearman test for correlations between the type of regulation and age. The results showed significant differences in several items and emotional regulation by sex and an inverse correlation between age and demotivation. There are differences between the reasons why both sexes perform physical activity, and we have determined that boys have more intrinsic regulation than girls do.

Young children's motivations and social cognitions toward swimming: Testing direct and moderation effects of sport competence in two large-scale studies.

Direct and moderation effects of swimming competence using an integrated model of self-determination theory (SDT) and theory of planned behaviour (TPB) were examined in two large-scale studies among young children. Specifically, we examined whether swimming competence had direct and moderation effects on social psychological variables of perceived need support, autonomous motivation, TPB social cognition constructs, and intention. In Study 1, using a cross-sectional survey of 4959 primary school children, swimming competence formed significant positive relationships with all model variables (ß =.061 to.330, p < .05) except intention (ß = -.009, p > .05), and its moderation effect on model parameters were small in size or not statistically significant. In Study 2, using a pre-post-test quasi-experiment among 1,609 primary school children, improvement of swimming competence was associated with change-scores in all model variables (ß =.046 to.230, p < .05) except subjective norm (ß =.049, p > .05). Swimming competence did not significantly moderate the parameter estimates of the integrated model (p > .05) at the change-score level. Findings indicate that swimming competence is associated with higher autonomous motivation; TPB social cognitions of attitude, subjective norm, and perceived behavioural control; and intention. However, swimming competence did not moderate the parameter estimates of the integrated model.

Relationships of mathematics achievement with self-determined motivation and mathematics anxiety among senior two students in Northern Rwanda.

The most important factors affecting students' mathematics achievement are affective-motivational factors. Grounded on self-determination theory, expectancy-value theory, and control-value theory, we examined the relationship between self-determined motivation (i.e., intrinsic motivation and career motivation) and mathematics anxiety (cognitive and affective components) with mathematics achievement. The authors examined the proposed relations using cross-sectional data of senior two (grade eight) students in Northern Rwanda. Exploratory and confirmatory factor analyses of the subscales adapted from the Science Motivation Questionnaire (SMQ and SMQ-II) confirmed a two-factor structure for mathematics anxiety and a two-factor structure for self-determined motivation. The adapted subscales showed good internal consistency, convergent validity, and discriminant validity. Furthermore, the findings suggest that the adapted subscales can be used to assess intrinsic motivation, career motivation, and mathematics anxiety among Rwandan students in senior two. Based on the findings, mathematics anxiety is a two-dimensional construct comprising both cognitive and affective components, and these components differ in their relationship with mathematics achievement. Cognitive mathematics anxiety was negatively related to mathematics achievement more than affective mathematics anxiety; intrinsic motivation and career motivation were positively related to mathematics achievement. These findings suggest that teachers should promote more self-determined motivation among senior two students to improve their mathematics achievement. Additional longitudinal research is needed to determine whether the observed differential relationship patterns between mathematics anxiety components and mathematics achievement persist over time.

Self-Determined Goals of Male Participants Attending an Intervention Program for Intimate Partner Violence Perpetrators: A Thematic Analysis.

Treatment adherence and motivation to change are among the main challenges in intervention programs for Intimate Partner Violence (IPV) perpetrators. Motivational strategies have shown promising results in increasing the effectiveness of intervention programs for IPV perpetrators. One of these motivational strategies is goal setting. The aim of this study was to analyze and categorize the self-determined goals (n = 204) of 227 male participants attending an intervention program for IPV perpetrators. Findings of the thematic analysis suggested three levels of analysis: 4 core categories, 12 categories, and 35 codes. The four core categories were "interpersonal relationships" (39.7%), "personal resources for daily life" (29.3%), "coping strategies" (27.8%), and "motivation to change" (3.2%). Identifying the main categories of self-determined goals of IPV perpetrators could guide professionals to tailor the intervention to participants' specific needs and implement evidence-based strategies to strengthen goal attainment and improve treatment outcomes.

Experiences of solitude in adulthood and old age: The role of autonomy.

Recent evidence suggests that older adults experience momentary states of spending time alone (i.e., solitude) less negatively than younger adults. The current research explores the role of autonomy as an explanation mechanism of these age differences. Previous research demonstrated that solitude can be experienced positively when it is characterized by autonomy (i.e., the own wish or decision to be alone). As older adults are relatively more autonomous in their daily lives, they might experience solitude less negatively (in terms of subjective well-being, social integration, self-esteem, and valence) than younger adults. We tested this hypothesis in three studies. In two experience-sampling studies (Study 1: N = 129, 59.7% women, age 19-88 years; Study 2: N = 115, 66.4% women, age 18-85 years), older age and higher autonomy were associated with more positive experience of everyday solitude moments. Although autonomy did not differ between younger and older adults, perceived (lack of) autonomy partly played a more important role for the experience of solitude moments in younger adults compared to older adults. Finally, Study 3 (N = 323, 52% women, age 19-79 years) showed that the relationship between recalled solitude moments of high versus low autonomy and solitude experience is fully explained by feelings of autonomy. Overall, our results demonstrate that older people do not experience more autonomy in situations of solitude than younger adults, but that they partly better cope with low-autonomy solitude. However, people of all ages seem to benefit more from high-autonomy moments of solitude.

Environmental integration tool approach: Self-determined commitment and the adoption of pro-environmental behaviors.

This paper discusses the role of self-determined commitment in the methodological dynamics of the Environmental Integration Tool Producer (EIT Producer) and its potential impact on the adoption of pro-environmental behaviors by local economy actors in the Global South. This tool is part of the EIT Approach developed by Louvain Coopération, the NGO associated with Université Catholique de Louvain (Belgium), which aims to support social actors in productivity and consumption activities in Africa, Andean America, and Asia. The aim is to highlight the conceptual and methodological elements of the OIE Producer, in order to understand the role of self-determined commitment in the expected ends and in the impact of the tool. The integration between economic development and the environment is a central issue in the challenges of contemporary global society. This article intends to contribute with answers to such challenges, especially with regard to the development of methodologies that are effective in governmental and non-governmental cooperation programs engaged for sustainable development.

Using Novel Implementation Tools for Evidence-based Intervention Delivery (UNITED) across public service systems for three evidence-based autism interventions in under-resourced communities: study protocol.

BACKGROUND: There are a growing number of evidence-based interventions (EBIs) for autistic individuals, but few are successfully implemented with fidelity in under-resourced communities and with families from traditionally disenfranchised groups. Implementation science offers tools to increase EBI use in communities, but most implementation strategies are designed specific to a single EBI. It is not feasible to develop a new implementation strategy each time a new EBI is introduced in the community. Therefore, to test the effectiveness and generalizability of implementation strategies we are developing and testing a multifaceted implementation strategy with three EBIs concurrently. The goal of this protocol paper is to describe the randomized field trial of an implementation strategy for use across autism EBIs, diverse settings and participants, with the goal of increasing rapid uptake of effective practices to reach our most vulnerable children. METHODS: We developed a multifaceted implementation strategy called Using Novel Implementation Tools for Evidence-based intervention Delivery (UNITED) to facilitate the implementation and sustainment of three EBIs in under-resourced settings. We will compare fidelity to, and effectiveness of, each intervention [Mind the Gap (MTG), Remaking Recess (RR), Self-Determined Learning Model of Instruction (SDLMI)] with and without UNITED in a randomized field trial. Randomization will be stratified using a minimization allocation method. We will train community practitioners using remote delivery of modules specific to the intervention, and active coaching via Zoom for at least 6 sessions and up to 12 as dictated by each EBI. Our primary outcome is fidelity to each EBI, and our secondary outcome is at the child or family level (family empowerment for MTG, child peer social engagement for RR, and adolescent self-determination for SDLMI, respectively). We will measure progress through the implementation phases using the Stages of Implementation Completion and cost-effectiveness of UNITED. DISCUSSION: The results of this study will provide rigorous data on the effectiveness and generalizability of one relatively light-touch implementation strategy in increasing use of autism EBIs and associated outcomes in diverse under resourced public service settings for underrepresented autistic youth. TRIAL REGISTRATION: Mind the Gap: Clinicaltrials.gov Identifier:  NCT04972825 (Date registered July 22, 2021); Remaking Recess: Clinicaltrials.gov Identifier:  NCT04972838 (Date registered July 22, 2021); Self-Determined Learning Model of Instruction: Clinicaltrials.gov Identifier:  NCT04972851 (Date registered July 22, 2021).

The Predictive Role of Perceived Support from Principals and Professional Identity on Teachers' Motivation and Well-Being: A Longitudinal Study.

The aim of this study was to estimate the influence of perceived support from principals and teacher professional identity (TPI) on teacher's motivation, vigour and burnout using a longitudinal design during a school year. A sample of 544 secondary teachers reported their perceived support from principals and TPI at the beginning of the year (T1) and their self-determined motivation, vigour, and burnout both at the beginning (T1) and at the end of the year (T2). Structural equation modelling (SEM) revealed that the support from principals was associated with T1 TPI. T1 TPI only partially predicted T2 self-determined motivation (controlling T1 scores), and T2 self-determined motivation was associated with T2 burnout and vigour (controlling T1 scores). The SEM revealed a positive process involving perceived support from principals, pedagogical expertise, autonomous motivation, and well-being indicators. In summary, the present study extends the knowledge about the teacher well-being process and the role of contextual and individual antecedents. In an applied perspective, to prevent burnout, teachers need efficient initial and continuing pedagogical education to be armed in front of the students and need the support of their principals during the school year.

Heutagogy: A self-determined learning approach for Midwifery Continuity of Care experiences.

AIM: The aim of this discussion paper is to discuss learning theories in midwifery education, as related to the Midwifery Continuity of Care Experience and to propose an original conceptual framework based on Heutagogy. BACKGROUND: Midwifery education curricula include a number of midwifery practice experiences. One of the requirements is for students to provide Midwifery Continuity of Care. To achieve these experiences, students in Australia are required to provide care to at least ten (10) women through pregnancy, be on call for the woman's birth and provide at least two visits post-birth. Continuity of care experiences appear to have been incorporated without sufficient consideration of the educational purpose of the experience, or how the experiences contribute to the development of the profession. Although we do know midwifery practice embraces woman-centred care as its philosophical underpinning, a learning approach that is congruent with this philosophy needs to be clearly articulated. DESIGN: A discussion paper that compared and contrasted learning theories to align with Midwifery Continuity of Care experiences. METHODS: A review of the literature on learning theories was conducted before comparing and contrasting the theories to arrive at a conceptual framework focused on learning theory and its application to the Midwifery Continuity of Care Experience. RESULTS: Heutagogy provides a potentially congruent educational learning approach to underpin the continuity of care experiences, in comparison to traditional learning theories of pedagogy and andragogy. With a paucity of research in the application of heutagogy to midwifery education, it's conceptual underpinnings and the possible application to the Continuity of Care Experience, this paper explores the possible theoretical applications of heutagogy to midwifery education. CONCLUSION: As a learning theory, heutagogy is well - aligned with woman-centred care. Heutagogy provides a theoretical framework suitable to underpin strategies, including the conceptual framework proposed, that may assist in empowering students to participate in their own education by giving them the ability to be self-determined in both their approach to learning and to evaluate their own learning needs.

Validity and reliability evidence for the Behavioral Regulation in Sport Questionnaire with Romanian professional athletes.

BACKGROUND: Despite the importance attributed to athletes' motivation in sports performance and well-being; no measures of motivation toward sport were found in the Romanian sport context. OBJECTIVE: Grounded in self-determination theory, this research aimed to adapt and to gather validity and reliability evidence supporting the use of the Behavioral Regulation in Sport Questionnaire (BRSQ) in the Romanian sport domain. METHOD: The participants were 596 Romanian professional athletes (age: M = 22.91, SD = 5.84; sports experience: M = 11.14, SD = 5.03), who 273 practiced individual sports and 323 team sports. They completed an online questionnaire survey assessing their perception of behavioral regulation, resilience and burnout in sport. RESULTS: Confirmatory factor analysis supported the six-factor correlated model, which was invariant across age and sport. Correlations among latent factors configured a simplex structure, underpinning the self-determination continuum. Average variance extracted values from .50 to .70 endorsed convergent validity. Scores for heterotrait-monotrait ratio of correlations as high as .88, as well as 95% confidence intervals of each interfactor correlation that did not include 1.00 supported discriminant validity. Values over .70 for Cronbach's alpha, McDonald's omega and Raykov's coefficients showed a good level of reliability for each factor. Linear regression analysis revealed that while intrinsic motivation, integrated regulation and identified regulation positively predicted resilience, introjected regulation, external regulation and amotivation positively predicted burnout. CONCLUSIONS: The BRSQ is shown to be a valid and reliable measure of the six types of behavioral regulation in the Romanian sport context.

Empowering and Disempowering Motivational Climates, Mediating Psychological Processes, and Future Intentions of Sport Participation.

Based on the conceptual model of multidimensional and hierarchical motivational climate the objective of this study was to test two models. One model (M1) of total mediation, testing the mediating mechanisms that explain why the motivational climate affects intention of continuity or dropout. Specifically, we test the mediating role of satisfaction/frustration of basic psychological needs and self-determined motivation, in the relationship between the players' perception of the empowering and disempowering climate created by the coach, and the intention of young soccer players to continue/dropout the sport practice. The second model (M2) of partial mediation, contributes to knowing the mechanisms that link the antecedent variables included in the model (perceived empowering and disempowering motivational climate) and the outcomes (intention of continuity or dropout in sport). A total of 381 young male soccer players between 12 and 14 years of age (M = 12.41, SD = 0.89), completed a questionnaire package tapping into the variables of interest: players' perception of the motivational climate created by the coach (empowering and disempowering), satisfaction/thwarting of basic psychological needs, self-determined motivation and the intention to continue/dropout sports participation. The hypothesized model was tested using a structural equation model technique with latent variables. The results of the partial mediation model were satisfactory (χ2= 120.92; df = 68; RMSEA = 0.045; CFI = 0.968; TLI = 0.957) and showed that need satisfaction and self-determined motivation partially mediated the relationship between the perception of the empowering climate and the intention to continue. Moreover, need satisfaction showed a positive and significant relationship with the intention to continue sports participation. Additionally, need thwarting and self-determined motivation totally mediated the relationship between the perception of the disempowering climate and the intention to dropout. Furthermore, needs thwarting was positively and significantly related to the intention to dropout of sports participation. Findings point to the importance of fostering empowering climates and preventing the creation of disempowering climates in the grassroots football.

High School Students' Accelerometer-Measured Physical Activity and Sedentary Behavior by Motivational Profiles Toward Physical Activity.

Purpose: Based on a Self-Determination Theory with a person-centered approach, the purposes were: (1) to identify motivational profiles toward physical activity (PA) among high school students, and (2) to compare students' accelerometer-measured PA and sedentary behavior (SB) levels between the motivational profiles toward PA. Methods: The present study followed a cross-sectional design. A total of 394 high school students (173 females; final sample = 360 and 198 for the purposes 1 and 2, respectively) aged 12-16 years completed the study. Participants' PA and SB levels were objectively measured by ActiGraph GT3X+ accelerometers (right hip) during seven consecutive days. Later, motivation toward PA was measured by the Behavioral Regulation in Exercise Questionnaire. Results: Based on a two-stage cluster analysis approach, the results identified three clusters: (1) "Self-determined motivational profile toward PA" (65.3%); (2) "Non-self-determined motivational profile toward PA" (23.9%), and (3) "Controlled motivational profile toward PA" (10.8%). The results of the chi-square test showed that a statistically significantly higher percentage of males were represented in cluster 1 (p < .001). The results of the one-way analysis of variance showed that students from cluster 1 had statistically significantly lower levels of SB, and higher levels of light PA, moderate-to-vigorous PA and total PA than those from cluster 2 (p < .05; |d| = 0.40-0.61). Conclusions: In line with the Self-Determination Theory, the students within the self-determined motivational profile had lower SB and higher PA. This preliminary evidence could inform and guide future policy regarding students' PA promotion.

[Suicide and assisted suicide from a legal and ethical perspective]. / Suizid und Suizidbeihilfe aus rechtlicher und ethischer Perspektive.

In 2020, the Federal Constitutional Court declared the ban on assisted suicide unconstitutional and invalid. The court derived a right to self-determined dying from the general right of personality. This right also includes the freedom to take one's own life and to seek help from third parties for this purpose and to make use of help if it is offered. In the meantime, there are several proposals for regulations and draft laws that pursue different concepts of a possible future regulation of assisted suicide. However, from the perspective of criminal law, the search for a new regulation should always be preceded by the question of the necessity of a new regulation. A new regulation must not be limited to certain groups of persons, such as persons with incurable, terminal illnesses, because otherwise the suicide motive would be assessed. This brings with it the particular challenge of finding a regulation that covers the different problem and need situations without assessing the suicide motive and also takes into account that the autonomy of the individual can be endangered in different ways.The article takes its starting point in the right to suicide, sheds light on different concepts, and discusses their advantages and disadvantages without explicitly highlighting individual legislative proposals. This is intended to enrich the further debate with individual aspects. At the same time, it advocates legislative restraint.

Understanding the antecedents of healthy and unhealthy weight control behaviours: Grit, motivation and self-control.

OBJECTIVE: To understand the psychological antecedents or personal factors that lead to weight control behaviours that can help to develop more effective prevention strategies. DESIGN: The present correlational study has a non-experimental, quantitative, cross-sectional design. A model was tested considering types of motivation (autonomous motivation, controlled motivation and amotivation) as mediators in the relationship between the Grit personality and healthy and unhealthy weight control behaviours, with self-control as a moderator in the aforementioned indirect effects. SETTING: Monterrey (Nuevo León, México). PARTICIPANTS: A representative sample of 1219 adults (men = 599; women = 620) aged 18-65 years (M = 29·37, sd = 11·83). RESULTS: Findings supported the mediator role of the types of motivation. Specifically, Grit showed a positive indirect effect on healthy weight control behaviours through autonomous motivation. Conversely, Grit showed a negative indirect effect on unhealthy weight control behaviours through autonomous motivation. Furthermore, findings supported the moderator role of self-control in the relationship between amotivation and healthy and unhealthy weight control behaviours. CONCLUSIONS: This study provides evidence for the key role of Grit in the adoption of healthy or unhealthy control behaviours, as well as the role of autonomous motivation in the development of healthy behaviours.

Children's Enjoyment, Perceived Competency, and Vigorous Physical Activity During High-Intensity Interval Training in Physical Education.

Purpose: Little is known about children's experience with high-intensity interval training (HIIT) during elementary school. Perceptions of enjoyment, perceived competence, and motivation are likely to drive long-term adherence and are, therefore, critical to understanding how HIIT might be implemented in this setting. The purpose of this study was to describe children's vigorous physical activity (VPA), enjoyment, and perceived competency of HIIT activities within a Self-Determination Theory framework (autonomy) in elementary school physical education (PE) classes. Methods: Participants were 402 children from a single, diverse elementary school (49.4% female, 59.6% Non-Hispanic white). Student enjoyment and perceived competency were collected following teacher- (non-autonomous) and student-led (autonomous) conditions. A sub-set of 201 children wore accelerometers to measure percent of time in VPA during HIIT conditions. This mixed factorial design was assessed through a series of repeated measures ANOVAs. Results: While children reported generally positive enjoyment and perceived competence in both conditions (rating over 4.0 on a 5-point scale), children significantly enjoyed (d = 0.44) and felt more competent (d = 0.11) during the autonomous HIIT condition compared to the nonautonomous HIIT condition. In contrast, the percent of time in VPA (d = 0.94) was significantly lower in the autonomous condition. Conclusions: These data illustrate a challenging trade-off with the design of HIIT trials. Increasing autonomy through the inclusion of student choice increased enjoyment and perceived competence of HIIT, which are likely to improve adherence, but lowered VPA, which is likely to reduce cardiometabolic impact.Abbreviations: U.S.: United States; PA: Physical activity; MVPA; Moderate-to-vigorous physical activity; PE: Physical education; CDC: Centers for Disease Control and Prevention; Randomized control trial, RCT; SDT: Self-Determination Theory; HIIT: High-intensity interval training; RCT: Randomized control trial; VPA: Vigorous physical activity; IRB; Institutional Review Board; HFZ: Healthy Fitness Zone; PACES: Physical Activity Enjoyment Scale; M: Mean; SD: Standard deviation.

Parents' and Health Professionals' Attitudes to Advancing Primary MMR Vaccine Administration from Fifteen to Six Months of Age-A Qualitative Thematic Analysis Embedded in a Randomized Trial.

Declining levels and duration of passively acquired maternal antibodies prompted a Danish trial to test the feasibility of advancing administration of the first measles, mumps, and rubella vaccine (MMR1) from 15 to 6 months of age. A trial-embedded qualitative study aimed to understand parents' (N = 24) and health professionals' (N = 11) attitudes about the measles, mumps, and rubella vaccine (MMR) in general and about advancing MMR1 administration. Overly positive parent attitudes were contrasted by members of a vaccine-skeptical organization including parents considering that their child was seriously vaccine-injured long ago. Parents' attitudes to advancing MMR1 mirrored their attitudes about the MMR vaccine in general, with four positions along a continuum of trust in the healthcare system: unquestioning trust, acceptance after careful consideration, challenging indecisiveness, and defensive rejection. Low tolerance was identified between vaccine supporters and vaccine opponents. Parents of children with perceived serious vaccine-related injuries described lifelong unresolved feelings of guilt. Supporters of advanced MMR1 saw it as a timely and convenient administration of a well-known vaccine, whereas opponents feared it would disturb the children's immature immune systems and emphasized difficulties in recognizing side effects so early in life. Health professionals were supportive of advancing the MMR1 vaccine and they carefully challenged the parents. Current MMR vaccine supporters show readiness to advance MMR1 administration.

The Quantity and Quality of Anxiety Are Mediating Variables between Motivation, Burnout and Fear of Failing in Sport.

The purpose of this study was to examine the effect mediated by self-determined motivation on an athlete's burnout, anxiety and fear of failure. To this end, the sample group consisting of 235 semi-professional yachtsmen and women was asked to answer four questionnaires which set out to assess each of the study's variables: Behavioural Regulation in Sport Questionnaire, Performance Failure Appraisal Inventory, Sport Anxiety Scale-2 and Athlete Burnout Questionnaire. The ex-post facto research was designed to analyse a single group based on structural equation modelling (SEM) between the constructs under analysis. The results illustrate that behavioural regulation could be used to positively predict burnout and fear of failure mediated by sport anxiety. Moreover, behavioural regulation has a significant, positive and moderate bearing on burnout and is wholly mediated by sport anxiety. It concludes by underscoring the point that there is no relationship either between behavioural regulation and burnout or between behavioural regulation and fear of failure, unless the athlete in question experiences anxiety.

Now you see me, now you don't: Adapting practice through target exclusion negatively impacts motor learning.

How to optimize practice through scheduling of different task components or skills is a question that has received a lot of attention in motor learning research. Consistently, schedules with high variability in the order that skills are practiced elicit better learning outcomes than schedules with low variability. Another idea is that learners should seek to reduce the uncertainty of practice outcomes, by avoiding well-learned, low error components in acquisition. To test this idea, we used a target exclusion method to prevent learners from returning to task components with low error and studied how individuals given choice over practice choose to allocate time to components of varying difficulty. In a multi-target adaptation paradigm, we compared exclusion with no exclusion methods in random-schedule, self-control and yoked, matched-schedule groups (6 groups total). To manipulate uncertainty, we excluded targets from practice once participants attained a criterion error score (mean < 5o) from the last 5 trials to the same target. Contrary to our predictions, groups that practiced without target exclusion were more accurate in retention compared to exclusion groups; irrespective of practice schedule. Self-control groups adopted uncertainty-based practice, spending more time at difficult targets and less time at easier targets. However, there were no group differences in error, based on schedule-type (random, self-control and yoked). In conclusion, target exclusion was not an effective method for learning and did not support the efficacy of uncertainty-based practice for learning novel skills. There were benefits from keeping easier/low error skills in practice for later retention. These benefits did not appear to be related to the increased switching between skills, but could be related to increased task engagement and more optimal challenge associated with practice on a range of target difficulties, rather than the most difficult.

The Associations between Self-Determined Motivation, Multidimensional Self-Efficacy, and Device-Measured Physical Activity.

Self-determined motivation (SDT) and self-efficacy theory have been widely used for understanding individuals' physical activity motivation and self-efficacy. However, there is a gap of evidence on the relations between SDT and multidimensional self-efficacy with device-measured physical activity in healthy adults. Questionnaires including the behavior regulation in exercise questionnaire version 2 (BREQ-2) and the multidimensional self-efficacy for exercise scale (MSES) were completed by the participants at baseline. All participants wore an accelerometer for seven days to record their physical activities at baseline and eight-week follow up. In total, thirty healthy adults completed the study (12 men, 18 women). The results showed that intrinsic motivation and scheduling self-efficacy had significantly positive associations with moderate-to-vigorous physical activity energy expenditure and duration. Multiple regression analysis showed that the relative autonomy index, task and scheduling efficacy could predict physical activity at baseline, but no SDT or self-efficacy variable could predict physical activity behavior after eight weeks. These results showed that the associations between motivation and self-efficacy with physical activity might change within a short period of time, which suggests that the regular assessment of motivation and self-efficacy might be needed in interventional programs to promote continued physical activity participation in healthy adults.