The Montreal Cognitive Assessment: Norms and Reliable Change Indices for Standard and MoCA-22 Administrations.

OBJECTIVE: The Montreal Cognitive Assessment (MoCA) is among the most frequently administered cognitive screening tests, yet demographically diverse normative data are needed for repeated administrations. METHOD: Data were obtained from 18,410 participants using the National Alzheimer's Coordinating Center Uniform Data Set. We developed regression-based norms using Tobit regression to account for ceiling effects, explored test-retest reliability of total scores and by domain stratified by age and diagnosis with Cronbach's alpha, and reported the cumulative change frequencies for individuals with serial MoCA administrations to gage expected change. RESULTS: Strong ceiling effects and negative skew were observed at the total score, domain, and item levels for the cognitively normal group, and performances became more normally distributed as the degree of cognitive impairment increased. In regression models, years of education was associated with higher MoCA scores, whereas older age, male sex, Black and American Indian or Alaska Native race, and Hispanic ethnicity were associated with lower predicted scores. Temporal stability was adequate and good at the total score level for the cognitively normal and cognitive disorders groups, respectively, but fell short of reliability standards at the domain level. CONCLUSIONS: MoCA total scores are adequately reproducible among those with cognitive diagnoses, but domain scores are unstable. Robust regression-based norms should be used to adjust for demographic performance differences, and the limited reliability, along with the ceiling effects and negative skew, should be considered when interpreting MoCA scores.

Semantic clustering on common list-learning tasks: a systematic review of the state of the literature and recommendations for future directions.

INTRODUCTION: On some list-learning tasks, such as the California Verbal Learning Test (CVLT) or Hopkins Verbal Learning Test (HVLT), examinees have the opportunity to group words based on semantically related categories (i.e., semantic clustering). Semantic clustering (SC) is often considered the most efficient organizational strategy and adopting SC is presumed to improve learning and memory. In addition, SC is conceptualized as reflecting higher-order executive functioning skills. Although SC measures have intuitive appeal, to date, there are no comprehensive reviews of the SC literature base that summarize its psychometric utility. In this systematic review, we synthesize the literature to judge the validity of SC scores. METHOD: We conducted a systematic literature search for empirical articles reporting SC from the CVLT and HVLT. We qualitatively described the relationship of SC with other list-learning and cognitive test scores and clinical diagnoses, contrasting SC with serial clustering and total learning scores when possible. RESULTS: SC was inversely correlated with serial clustering. Higher SC was strongly associated with better learning and memory performances. When compared with cognitive tests, SC tended to have the strongest relationships with other memory measures and modest relationships with tests of executive functioning. SC had negligible to small relationships with most other cognitive domains. Traditional memory scores yielded stronger relationships to cognitive test performances than did SC. SC across clinical groups varied widely, but clinical groups tended to use SC less often than healthy comparison groups. CONCLUSION: Our comprehensive review of the literature revealed that SC is strongly related to measures of learning and memory on the CVLT and HVLT and is correlated with a wide range of cognitive functions. SC has been understudied in relevant populations and additional research is needed to test the degree to which it adds incremental validity beyond traditional measures of learning and memory.

Cross-Validating the Executive Errors Scale of the Repeatable Battery for the Assessment of Neuropsychological Status.

The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) was developed to briefly measure a broad range of cognitive abilities, but it initially lacked a scale to evaluate executive functioning. Robert Spencer and colleagues recently created an Executive Errors scale (RBANS-EE) that quantified executive functioning (EF) errors committed during four RBANS subtests: List Learning, Semantic Fluency, Coding, and List Recall. In the present paper we cross-validated the RBANS-EE with a sample of 234 U.S. military veterans (M AGE = 67.2, SD = 11.5 years; M EDUCATION = 13.3, SD = 2.4 years) who completed the RBANS and various EF criterion measures as part of neuropsychological assessments they underwent during their clinical care. We found the RBANS-EE to be significantly correlated with most of the criterion EF measures. The RBANS-EE scale demonstrated modest ability to classify EF impairment at mild and severe levels; and, similarly, the RBANS-EE was modestly capable of accurately classifying those veteran respondents who were determined to have or to not have a neurocognitive disorder. Overall, the RBANS-EE can be quickly calculated, adds no administration time to an RBANS assessment, and yields useful scores to screen for EF dysfunction without replacing standalone EF tests.

Examining the item composition of the RBS in veterans undergoing neuropsychological evaluation.

The Response Bias Scale (RBS) is a measure of protocol validity that is composed of items from the Minnesota Multiphasic Personality Inventory - 2. The RBS has been successfully cross-validated as a whole, but the composition of the scale has not been reexamined until recently when three types of items were identified. In this study we sought to examine the reliability of the scale as a whole, as well as the items that are (a) empirically supported and conceptually similar (ES/CS), (b) empirically supported but not conceptually similar (ES/NS), and (c) not empirically supported (NES). Participants included 56 veterans undergoing neuropsychological evaluation for suspected traumatic brain injury. Results generally replicated Ratcliffe et al. finding that removing key NES items improved the internal consistency of the RBS from 0.706 to 0.747. Examined separately, ES/CS and ES/NS had internal consistencies of 0.629 and 0.605, respectively. One of the nine NES items had strong internal consistency, but none of the remaining eight had corrected item-total correlations above 0.194. NES items had an internal consistency of 0.177. Although the RBS is well-validated in detecting non-credible cognitive presentations, it may prove even more valuable after further item refinement whereby items detracting from its reliability and validity are excised.

Preliminary findings from reevaluating the MMPI Response Bias Scale items in veterans undergoing neuropsychological evaluation.

The Response Bias Scale (RBS) was developed to predict non-credible cognitive presentations among disability claimants without head injury. Developers used empirical keying, which is independent of apparent content, to select items from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) item pool that distinguished between individuals passing or failing performance validity tests (PVTs). No study has examined which of these items would have psychometric value when used in clinical neuropsychological evaluations. This study reexamined items comprising RBS with reference to manifest item content, internal consistency, PVTs, and a symptom validity test (SVT) in a sample of 173 predominately White male veterans (MAGE = 50.70, MEDU = 13.73) in a VA outpatient neuropsychology clinic. Participants completed the MMPI-2 Restructured Form (MMPI-2-RF), PVTs, and an SVT. The 28-item RBS appears to contain three types of items: those that manifestly address cognitive functioning, those that are supported but do not appear to address cognitive functioning, and nine items that were unrelated to cognition and not statistically supported. The 19 empirically supported items, or RBS-19, predicted PVT and SVT failures marginally better than the RBS. Both the RBS and RBS-19 had stronger relationships with SVTs relative to PVTs. Although the removal of the nine problematic items improved the diagnostic accuracy of the scale, it still did not reach the level that is generally considered to be clinically optimal. The RBS-19 offers a measure with improved internal consistency and predictive validity compared to the RBS and warrants additional research.

The Association Between Service Connection and Treatment Outcome in Veterans Undergoing Residential PTSD Treatment.

The Department of Veterans Affairs has invested significant time and resources into the treatment of posttraumatic stress disorder (PTSD). Despite concerted efforts, a significant portion of patients do not respond optimally to trauma-focused treatment. One of the factors that has been hypothesized to be associated with treatment response is participation in the Veterans Benefits Administration service-connected disability process. This factor may be particularly relevant in the residential treatment setting, where most participants are engaged in the compensation seeking process. We conducted a retrospective chart review of 105 veterans who completed Cognitive Processing Therapy (CPT) in a residential rehabilitation program. ANCOVAs that adjusted for baseline PTSD severity compared symptom change between those who were and were non-compensation seeking at the time of treatment. Compensation seeking status was associated with significantly less symptom improvement over the course of CPT after adjusting for baseline PTSD severity (F(1, 102) = 4.29, p < .001, η2 = .03). Sensitivity analyses did not detect a similar effect during a prior coping skills phase of treatment. During CPT, clinically significant change was met by 66.7% of non-compensation seeking veterans (M = -15, SD = 14.56) and by 40.1% of the compensation seeking group (M = -7.1, SD = 12.24). Compensation-seeking may be associated with reduced response to trauma-focused treatment in certain settings. Future research is needed to better understand the mechanisms underlying this effect.

The Savage Organizational Scoring System for the Rey-Osterrieth Complex Figure Test: Norms and New Data From Veterans in a Traumatic Brain Injury Clinic.

The Rey-Osterrieth Complex Figure Test (RCFT) permits quantifying diverse cognitive abilities, including executive function (EF). We evaluated the psychometric properties of a scoring procedure for the RCFT, the Savage Organizational Scoring System (SOSS), that awards points for drawing the largest structural elements of the figures as continuous wholes. This was a two-phase study: first, we conducted a systematic literature search for studies using the SOSS, and aggregated previously published data for healthy controls to create a normative database; second, we observed performances from veterans evaluated for traumatic brain injury (TBI), examining the reliability of their SOSS scores, the SOSS correlations with two EF measures and the participants' self-reported cognitive functioning, and then compared their mean scores to normative expectations. Across our literature-derived normative database, the aggregated mean SOSS score was 4.12 (SD = 1.72), which was marginally higher than that of our veteran participants evaluated for TBI, 3.72 (SD = 1.79). The SOSS had modest internal consistency (α = .59). Unlike the criterion EF measures, the SOSS was not significantly related to self-reported cognitive functioning. The SOSS shared a small, significant correlation with Trails B and Shipley Abstraction; but RCFT Copy scores were more strongly related to these tests, and the SOSS added no significant incremental predictive value beyond the RCFT Copy score. However, SOSS scores did predict RCFT Recall beyond RCFT Copy scores. We conclude that the SOSS has modest reliability and is predictive of RCFT Recall scores, but it is not strongly correlated with other EF measures, and it is only minimally affected by mild TBI.

Psychotherapy and depressive symptom trajectories among VA patients: Comparing dose-effect and good-enough level models.

Objective: Psychotherapy for depression is effective for many veterans, but the relationship between number of treatment sessions and symptom outcomes is not well established. The Dose-Effect model predicts that greater psychotherapeutic dose (total sessions) yields greater symptom improvement with each additional session resulting in smaller session-to-session improvement. In contrast, the Good-Enough Level (GEL) model predicts that rate of symptom improvement varies by total psychotherapeutic dose with faster improvement associated with earlier termination. This study compared the dose-effect and GEL model among veterans receiving psychotherapy for depression within the Veterans Health Administration. Method: The sample included 13,647 veterans with ≥2 sessions of psychotherapy for depression with associated Patient Health Questionnaire-9 (PHQ-9) scores in primary care (n = 7,502) and specialty mental health clinics (n = 6,145) between October 2014 and September 2018. Multilevel longitudinal modeling was used to compare the Dose-Effect and GEL models within each clinic type. Results: The GEL model demonstrated greater fit for both clinic types relative to dose-effect models. In both treatment settings, veterans with fewer sessions improved faster than those with more sessions. In primary care clinics, veterans who received 4-8 total sessions achieved similar levels of symptom response. In specialty mental health clinics, increased psychotherapeutic dose was associated with greater treatment response up to 16 sessions. Veterans receiving 20 sessions demonstrated minimal treatment response. Conclusions: These findings support the GEL model and suggest a flexible approach to determining length of psychotherapy for depression may be useful for optimizing treatment response and allocation of clinical resources. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Residential PTSD treatment outcomes during cognitive processing therapy for veterans with and without recent histories of cannabis use.

Prior evidence has suggested that cannabis use is associated with greater posttraumatic stress disorder (PTSD) symptom severity and worse outcomes following trauma-focused treatment. However, lack of high-quality randomized studies necessitates the use of clinical data to clarify the relationship between cannabis use and PTSD treatment to help inform clinical practice. A total of 114 veterans completed cognitive processing therapy in a residential PTSD treatment program. Differences in treatment response between cannabis users and nonusers were evaluated for measures of PTSD, depression, and posttraumatic growth using analysis of covariance to control for pretreatment scores and other drug use. At baseline, cannabis users reported higher levels of PTSD symptom severity relative to nonusers but reported similar levels of depression and posttraumatic growth. Significant differences between groups in the amount of change were not observed on any of the measures from before to after treatment; however, the total sample reported significant improvements in all measures of interest. These results suggest that PTSD treatment outcomes for cannabis users may be similar to nonusers when use is stopped during treatment. Additional data are needed regarding whether outcomes remain similar at follow-up, whether cannabis users maintain abstinence after treatment, and the impact of resumed cannabis use on PTSD symptoms. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Validation and extension of personality disorder spectra scales from MMPI-2-RF items.

OBJECTIVES: Recent efforts have been made to develop 10 personality disorder spectra scales using items from the Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF). These scales, developed by Sellbom et al. (2018, J. Pers. Assess., 1-15), demonstrated good validity and warranted cross-validation. METHOD: In all, 97 veterans undergoing neuropsychological evaluation in a VA outpatient clinic completed the MMPI-2-RF and the MCMI-III. We examined the psychometric properties of the scales and proposed additional scales based on personality constructs found in other established tests and prior versions of the Diagnostic and Statistical Manual for Mental Disorders (DSM; APA, 2013). RESULTS: The 10 original and three additional scales demonstrated acceptable psychometric properties. Most of the 13 scales correlated strongly with the corresponding MCMI-III scale, however, DSM criteria coverage was variable between scales. CONCLUSION: These data provide additional support for 10 personality disorder spectra scales based on MMPI-2-RF items and establish preliminary evidence for three additional scales. Further validation is needed in larger and diverse samples.

The Prevalence and Incidence of Attention-deficit/Hyperactivity Disorder in the Veterans Health Administration From 2009 to 2016.

BACKGROUND: The prevalence and incidence of attention-deficit/hyperactivity disorder (ADHD) have increased substantially among children and adolescents over the past decade; however, little is known regarding trends in adult populations. OBJECTIVE: The objective of this study was to explore trends in the prevalence, incidence, and correlates of adult ADHD in a national sample of veterans receiving care at Veteran Affairs (VA) hospitals and clinics. RESEARCH DESIGN: A retrospective design was used to examine ADHD diagnosed in all VA primary care (PC) and mental health clinics (MHCs) from fiscal years (FYs) 2009 to 2016. Age-adjusted prevalence and incidence were calculated using direct standardization, and Poisson regressions modeled differences in trends between demographic groups. SUBJECTS: All veterans with VA PC or MHC visits during the observation period. MEASURES: ADHD incidence and prevalence, psychiatric comorbidity, neuropsychological evaluation. RESULTS: An annual average of 5.09 million (range: 4.63-5.42 million) VA patients attended a PC or MHC appointment between FY09 and FY16. During this period, age-adjusted annual prevalence increased 258% from 0.23% to 0.84% and incidence increased 240% from 0.14% to 0.48%. Black veterans and older veterans had the lowest prevalence and incidence across all years. Increases in prevalence and incidence occurred across all demographic subgroups. The proportion of patients who had a neuropsychological evaluation within 6 months before or after a new ADHD diagnosis decreased from 12.6% to 10.8% [χ(1)=16.59, P<0.001]. CONCLUSION: Overall increases and demographic differences in adult veterans diagnosed with ADHD suggest a growing need to establish the reliability of diagnostic practices to ensure appropriate and equitable care.

Grooved Pegboard Test as a measure of executive functioning.

The Grooved Pegboard Test (GPT) is used primarily as a measure of motor functioning, but some research indicates that performance on this test my also reflect cognitive factors, particularly attention and executive functioning. The aim of this study was to examine rule violations as a possible quantifiable measure of executive functioning, particularly inhibitory control. In a sample of 82 veterans undergoing neuropsychological evaluation at a Virginia (VA) outpatient clinic, we recorded instances of two types of rule violations: using the incorrect hand during insertion and placing pegs out of sequence. Criterion measures included the Trail Making Test, the Tower of London, and the Stroop Color and Word Test. As hypothesized, total number of rule violations correlated moderately to strongly with the criterion measures. Notably, 60% of individuals committing two or more rule violations were impaired on at least two of the criterion measures, whereas only 17% of individuals without any rule violations were impaired on two criterion measures. Rule violations during the GPT provide valuable supplementary data for assessing executive dysfunction with no additional task demand or time cost. These data suggest that making two or more errors should raise suspicion of executive dysfunction.

Cross-validation of incidental learning tasks from the WAIS-IV as a measure of memory.

Although incidental learning (IL) routinely occurs in everyday life, it is infrequently assessed during neuropsychological evaluations. This study aimed to further examine the concurrent validity of IL measures based on the Vocabulary and Similarities subtests from the Wechsler Adult Intelligence Test-Fourth Edition (WAIS-IV). Participants included 43 Veterans referred for outpatient neuropsychological testing. Performances on the IL procedures correlated strongly with performances on the Repeatable Battery for the Assessment of Neuropsychological Status Immediate and Delayed Recall Indices (r = .48 to r = .78). These results indicate that the IL procedures from selected WAIS-IV subtests provided an efficient and valid measure of memory. In particular, the task based on the Similarities subtest provided exceptionally high value as a screen for memory problems. These IL procedures, which require minimal additional administration time, capitalize on the semantic encoding that is inherent in completing the Vocabulary and Similarities subtests, and offer a complementary approach to standard memory assessment.

Predictors of Treatment Adequacy During Evidence-Based Psychotherapy for PTSD.

OBJECTIVE: The U.S. Department of Veterans Affairs (VA) has placed increased emphasis on the availability and use of evidence-based psychotherapies (EBPs) for posttraumatic stress disorder (PTSD). However, many individuals do not complete a full course of EBP. The current study aimed to quantify the percentage of veterans receiving adequate EBP in VA hospitals and identify factors related to treatment completion. METHODS: A national sample of 16,559 VA patients who began cognitive processing therapy (CPT) or prolonged exposure (PE) during fiscal year 2015 was obtained via administrative data. Generalized estimating equations were used to evaluate individual-level predictors of treatment adequacy, defined as eight sessions within 14 weeks. Generalized linear models were used to examine facility-level factors. RESULTS: A total of 5,142 (31.1%) veterans completed eight or more sessions of psychotherapy. Older age was associated with greater odds of completing eight or more sessions (odds ratio OR=1.02, 95% confidence interval [CI]=1.01, 1.02, p<0.001), and comorbid bipolar or psychotic disorders were associated with reduced odds of completion (OR=0.89, 95% CI=0.80, 0.99, p=0.03). The percentage of patients who completed eight or more sessions was higher at facilities with higher percentages of EBP use among all patients with PTSD (ß=6.55, SE=1.97, p=0.001) and greater numbers of EBP-certified providers (ß=0.004, SE=0.002, p=0.038) and lower at facilities with a higher percentage of patients receiving a PTSD Checklist (ß=-1.16, SE=0.46, p=0.011). CONCLUSIONS: A minority of VA patients with PTSD complete an adequate dose of EBPs for PTSD. Individual and facility-level factors related to treatment adequacy may point to opportunities for intervention.

Predictors of change in cognitive processing therapy for veterans in a residential PTSD treatment program.

OBJECTIVE: Cognitive processing therapy is an evidence-based treatment for posttraumatic stress disorder (PTSD); however, questions remain regarding variability in treatment response. METHOD: A total of 123 veterans participated in group-based cognitive processing therapy (CPT) in residential PTSD treatment. Change over time in PTSD symptoms was modeled as a function of selected demographic and clinical variables. RESULTS: PTSD checklist (PCL) scores decreased by an average of 1 point per session (standard deviation [SD] = 0.1). Initial PCL scores were predicted by the Beck Depression Inventory-II (γ01 = 0.25; standard error [SE] = 0.08), Insomnia Severity Index (γ02 = 0.53; SE = 0.15), and Infrequency (F) scale of the Minnesota Multiphasic Personality Inventory-2 (γ03 = 0.09; SE = 0.04). Rate of change was predicted by the Somatic Complaints (RC1) scale (γ11 = -0.03; SE = 0.01) and the Antisocial Behavior (RC4) scale (γ12 = 0.02; SE = 0.01). CONCLUSIONS: These results provide insight into characteristics that may influence degree of benefit received from group-based CPT.

Suspiciously slow: timed digit span as an embedded performance validity measure in a sample of veterans with mTBI.

OBJECTIVE: To explore the utility of Timed Digit Span (TDS) as an embedded performance validity test (PVT) in a sample of veterans with mild traumatic brain injury (mTBI). We hypothesize that TDS will predict PVT failure on an established stand-alone measure (Trial 1 of the Test of Memory Malingering; TOMM). METHODS: TDS was compared to Digit Span accuracy (DS), using TOMM as a criterion measure, in a sample of 99 veterans with mTBI. Correlation and regression were used to characterize associations between PVTs. Logistic regression was utilized to examine the relationship between embedded PVTs and the odds of TOMM failure. Classification accuracy of TDS was examined using receiver operating characteristic (ROC) curves. Predictive power of TDS to estimate TOMM failure was calculated for the current sample and for hypothetical populations with common base rates (BRs). OUTCOMES: TDS significantly predicted failure on the TOMM and added greater incremental predictive value to the model compared to DS accuracy. Estimates of the predictive power of TDS were calculated using observed and hypothetical BRs. Sensitivity to stand-alone PVT, failure was 38% when specificity was set at 90%. CONCLUSION: TDS offers a promising embedded PVT method, given its strong convergence with an established stand-alone PVT.

Traumatic Brain Injury in the General Population: Incidence, Mental Health Comorbidity, and Functional Impact.

Traumatic brain injury (TBI) is a relatively prevalent and burdensome condition with significant public health cost; however, epidemiological studies of TBI in the United States have rarely used nationally representative samples or included measures of functioning. Data were obtained from the third wave of the National Epidemiological Survey on Alcohol and Related Conditions. Of the 36,309 individuals surveyed, 193 (0.53% weighted) reported a past-year TBI. Results from weighted logistic regression modeling indicated that prior active duty military status, mood disorders, posttraumatic stress disorder, and nicotine use disorders were associated with greater odds of TBI. Annual household income greater than $20,000 was associated with lower odds of TBI. Regarding functioning, TBI was associated with greater impairment on SF-12 scales measuring mental and physical health and the organization subscale of the Executive Function Index. Results suggest that many individuals in the US population experience TBI each year and that such injuries are associated with impairment across multiple domains.

Past-Year Treatment Utilization Among Individuals Meeting DSM-5 PTSD Criteria: Results From a Nationally Representative Sample.

OBJECTIVE: Little is known regarding treatment utilization among individuals meeting DSM-5 criteria for posttraumatic stress disorder (PTSD). METHODS: Data were analyzed from the third wave of the National Epidemiologic Survey on Alcohol and Related Conditions, a nationally representative sample using DSM-5 criteria. RESULTS: Factors related to increased odds of PTSD treatment utilization for individuals meeting lifetime criteria included some college education versus less than a high school degree (odds ratio [OR]=3.17), having health insurance versus no insurance (OR=2.86), having a comorbid phobia disorder versus not having a phobia disorder (OR=1.36), and greater PTSD symptom count (OR=1.11). Older age (OR=.40), identifying as black or Asian versus white non-Hispanic (OR=.70 and OR=.28, respectively), and greater social functioning (OR=.98) were associated with decreased odds of PTSD treatment utilization. CONCLUSIONS: Results highlight factors that may be useful in identifying population subgroups with PTSD that are at risk for underutilization of services.

The effect of D-cycloserine on social anxiety treatment using a behavioral outcome measure and a post-session administration strategy.

BACKGROUND: The drug D-Cycloserine (DCS) has been used as an adjunct to increase the pace of symptom reductions during exposure therapy for anxiety disorders. This procedure has met with mixed results andmany questions remain. Aims: The findings from two investigations are reported here, highlighting important domains for furthering our understanding of DCS effects. METHOD: Study 1 (n = 16) treated social anxiety among a sample of emerging adults, and in addition to self-report utilized a behavioral measure of symptom improvement to evaluate outcomes. Study 2 (n = 16), utilizing a similar design, introduced an algorithm based post-session administration strategy following sessions where anxiety reductions were evident. Both investigations were double-blind, placebo controlled, randomized trials with participants diagnosed with social anxiety. Treatment was an exposure-based CBT-protocol adopted in other investigations that tested DCS. RESULTS: Findings of Study 1 yielded an interaction effect in favor of DCS for self-reported distress ratings (p=.02) and on a behavioral measure of anxiety (p=.01). Findings from Study 2 revealed a significant effect for self-reported subjective distress ratings (p=.002). CONCLUSIONS: Although limitations of small sample size constrain generalization and limit power, results illustrate some beneficial effects of DCS within the context of exposure-based intervention for social anxiety, yet are discussed in the context of statistical vs. clinical significance and the DCS literature as a whole. Present findings highlight the potential usefulness of a post-session administration strategy and the behavioral measure for future efforts with an eye towards preventing bias through more nuanced and powered studies.