The impact of hindsight bias on the diagnosis of perioperative events by anesthesia providers: A multicenter randomized crossover study.

STUDY OBJECTIVE: Hindsight bias is the tendency to overestimate the predictability of an event after it has already occurred. We aimed to evaluate whether hindsight bias influences the retrospective interpretation of clinical scenarios in the field of anesthesiology, which relies on clinicians making rapid decisions in the setting of perioperative adverse events. DESIGN: Two clinical scenarios were developed (intraoperative hypotension and intraoperative hypoxia) with 3 potential diagnoses for each. Participants completed a crossover study reviewing one case without being informed of the supposed ultimate diagnosis (i.e., no 'anchor' diagnosis), referred to as their foresight case, and the other as a hindsight case wherein they were informed in the leading sentence of the scenario that 1 of the 3 conditions provided was the ultimate diagnosis (i.e., the diagnosis the participant might 'anchor' to if given this information at the start). Participants were randomly assigned to (1) which scenario (hypotension or hypoxia) was presented as the initial foresight case and (2) which of the 3 potential diagnoses for the second case (the hindsight case, which defaulted to whichever case the participant was not assigned for the first case) was presented as the ultimate diagnosis in the leading sentence in a 2 (scenario order) x 3 (hindsight case anchor) between-subjects factorial design (6 possible randomization assignments). SETTING: Two academic medical centers. PARTICIPANTS: Faculty, fellow, and resident anesthesiologists and certified nurse anesthetists (CRNAs). INTERVENTIONS: None. MEASUREMENTS: After reading each clinical scenario, participants were asked to rate the probability (%) of each of three potential diagnoses to have caused the hypotension or hypoxia. Compositional data analysis (CoDA) was used to compare whether diagnosis probabilities differ between the hindsight and the foresight case. MAIN RESULTS: 113 participants completed the study. 59 participants (52%) were resident anesthesiologists. Participants randomized to the hypotension scenario as a hindsight case were 2.82 times more likely to assign higher probability to the pulmonary embolus diagnosis if provided as an anchor (95% CI, 1.35-5.90; P = 0.006) and twice as likely to assign higher probability to the myocardial infarction diagnosis if provided as an anchor (95% CI, 1.12-3.58; P = 0.020). Participants randomized to the hypoxia scenario as a hindsight case were 1.78 times more likely to assign higher probability to the mainstem bronchus intubation diagnosis if provided in the anchor statement (95% CI, 1.00-3.14; P = 0.048) and 3.72 times more likely to assign higher probability to the pulmonary edema diagnosis if provided as an anchor (95% CI, 1.88-7.35; P < 0.001). CONCLUSIONS: Hindsight bias influences the clinical diagnosis probabilities assigned by anesthesia providers. Clinicians should be educated on hindsight bias in perioperative medicine and be cognizant of the effect of hindsight bias when interpreting clinical outcomes.

Trends in Gender of Authors of Patient Blood Management Publications.

BACKGROUND: Diverse representation in the field of patient blood management (PBM) may help bring varying perspectives to improve patient care. We assessed trends in gender of first and last authorship of recent PBM publications to evaluate diversity within the field. METHODS: Publications from 10 high-impact anesthesiology and blood transfusion medicine journals between 2017 and 2021 were reviewed using 19 keywords to identify PBM-related articles. Each publication title was reviewed independently to determine whether it met the inclusion criteria. A software program was used to identify the gender of each first and last author for the most common first names. Author gender that could not be identified through this process was determined by querying institutional websites and professional social networks (eg, ResearchGate). Any publication where the gender of the first and/or last author could not be reliably determined was excluded from the analysis. Trends over time were assessed using the Cochran-Armitage test. RESULTS: A total of 2467 publications met the inclusion criteria of the 2873 yielded by the initial search. Gender of the first and last author was identified for 2384 of these publications and included in the final analysis. Approximately 42.8% of publications featured a woman as the first author with the highest from the journals such as the Journal of the American Medical Association ( JAMA ) (48.7%) and Transfusion (48.1%) and the lowest from the journals such as the British Journal of Anaesthesia (24.1%) and Anesthesia & Analgesia (24.4%). Approximately 32.0% of the publications featured a woman as the last author with the highest being Transfusion (36.9%) and Anaesthesia (31.8%) and the lowest being Anesthesia and Analgesia (18.3%) and Anesthesiology (18.6%). Approximately 57.6% of publications had either a woman as the first or last author while 16.3% of the publications had women as both the first and last authors. Women authors comprised 32.6% of the publications with a single author. Women as the first or last authors did not change significantly over the study period ( P = .115 and P = .119, respectively). No significant difference was observed in the percentage of PBM articles with a woman as the first or last author, a woman as the first and last author, or a woman as a single author from 2017 to 2021 ( P = .089, P = .055, and P = .226, respectively). CONCLUSIONS: The percentage of women as the first and last authors in PBM publications from the 5-year period of 2017 to 2021 was <50%. Gender equity in PBM authorship was identified as an area for potential future improvement. International mentorship and sponsorship of women remain important in promoting gender equity in PBM authorship.

The Impact of Physician Race and Sex on Patient Ranking of Physician Competence and Perception of Leadership Ability.

Background Biases affect patient perceptions of their physician and influence the physician-patient relationship. While racial disparities in care and inequities in the healthcare workforce are well-documented, the impact of physician race on patient perceptions remains unclear. We aimed to investigate the association of physician race and sex on patient perceptions during simulated preoperative encounters. Methods Three hundred patients recruited consecutively in the Preanesthesia Evaluation and Testing Center viewed pictures of 4 anesthesiologists (black male, white male, black female, white female) in random order while listening to a set of paired audio recordings describing general anesthesia. Participants ranked each anesthesiologist on confidence, intelligence, and likelihood of choosing the anesthesiologist to care for their family member, and chose the one anesthesiologist most like a leader. Results Compared to white anesthesiologists, black anesthesiologists had greater odds of being ranked more confident (OR, 1.45; 95% CI, 1.10 to 1.89; P=0.008) and being considered a leader (OR, 2.06; 95% CI, 1.50 to 2.84; P<0.0001). Among white participants, black anesthesiologists had greater odds of being ranked more intelligent (OR, 2.08; 95% CI, 1.54 to 2.81; P<0.0001) and were more likely to be chosen to care for a family member (OR, 2.26; 95% CI, 1.66 to 3.08; P<0.0001). Female anesthesiologists had greater odds of being ranked more intelligent (OR, 1.36; 95% CI, 1.08 to 1.71; P=0.009) and were more likely to be chosen to care for a family member (OR, 1.58; 95% CI, 1.27 to 1.97; P<0.001) compared with male anesthesiologists. Conclusions Contrary to our hypothesis, patients ranked black physicians more highly on multiple competence and leadership quality metrics. Our data likely highlight the role social desirability bias may play in studies of racial disparities within medicine.

Multicenter evaluation of the Quantra with the QStat Cartridge in adult patients undergoing liver transplantation.

Blood loss and transfusion of blood products are key concerns during liver transplantation. Whole-blood viscoelastic testing devices have been used to monitor hemostatic function and guide the transfusion of blood products in this patient population. The Quantra System with the QStat Cartridge is a new point-of-care, closed-system viscoelastic testing device that measures changes in clot stiffness during coagulation and fibrinolysis using ultrasound detection of resonance. The aim of this multicenter prospective observational study was to evaluate the Quantra System against the ROTEM delta device in monitoring coagulation and fibrinolysis in patients undergoing liver transplantation. One hundred twenty-five (125) adult subjects (above 18 y old) were enrolled across 5 medical centers in the US. Blood samples were collected at a minimum of 3-time points: preincision (baseline), during the anhepatic phase, and after the start of reperfusion. Performance was assessed as the correlation of equivalent measurements from the QStat Cartridge and ROTEM delta INTEM, EXTEM, and FIBTEM assays. In addition, a clinical concordance analysis was performed to assess the agreement between the 2 devices related to the detection of fibrinolysis. The correlation between the 2 viscoelastic testing devices was strong, with r -values ranging between 0.88 and 0.95, and the overall agreement with respect to detecting fibrinolysis was 90.3% (CI, 86.9%-93.2%). The results indicate that the Quantra with the QStat Cartridge provides comparable information as the ROTEM delta in the assessment of hemostatic function during a liver transplant. Quantra's simplicity of use and availability of rapid results may provide clinicians with a faster, more convenient means to assess coagulation and fibrinolysis status in the operating room and critical care setting.

Anesthetic Management of Laparoscopic Adrenalectomy for a Patient with Concomitant Pheochromocytoma and Bilateral Carotid Artery Stenosis.

Symptomatic carotid stenosis and pheochromocytoma both require timely surgical intervention. Following a transient ischemic attack (TIA), a 46-year-old man was diagnosed with bilateral carotid artery stenosis and scheduled for carotid endarterectomy. He was a poor candidate for minimally invasive options due to prior neck radiation. Simultaneously, he began experiencing difficulty with diabetes management and elevated blood pressures and was ultimately diagnosed with pheochromocytoma. This unique situation required coordination to determine the appropriate timing of the two interventions. This case highlights the importance of communication and coordination amongst medical specialists and consideration for anesthetic management of patients with concomitant pheochromocytoma and carotid stenosis.

Resting and Recharging: A Narrative Review of Strategies to Improve Sleep During Residency Training.

Background: Residency involves demanding training with long hours that may cause fatigue and sleep deprivation and adversely impact residents and patients under their care. Objective: To identify, using a narrative review, evidence-based interventions to reduce the physiologic effects of fatigue and sleep deprivation from overnight and night shift work. Methods: A PubMed literature search was conducted through August 30, 2021, using the terms "resident" and "sleep" in the title or abstract and further narrowed using a third search term. Observational studies, randomized controlled trials, systematic reviews, and meta-analyses of human subjects written and published in English were included. Studies that were not specific to residents or medical interns or did not investigate an intervention were excluded. Additional studies were identified by bibliography review. Due to the heterogeneity of study design and intervention, a narrative review approach was chosen with results categorized into non-pharmacological and pharmacological interventions. Results: Initially, 271 articles were identified, which were narrowed to 28 articles with the use of a third search term related to sleep. Bibliography review yielded 4 additional articles. Data on interventions are limited by the heterogeneity of medical specialty, sample size, length of follow-up, and reliance on self-report. Non-pharmacological interventions including strategic scheduling and sleep hygiene may improve sleep and well-being. The available evidence, including randomized controlled trials, to support pharmacological interventions is limited. Conclusions: Non-pharmacological approaches to mitigating fatigue and sleep deprivation have varying effectiveness to improve sleep for residents; however, data for pharmacological interventions is limited.

Efficacy of opioid spinal analgesia for postoperative pain management after pancreatoduodenectomy.

BACKGROUND: Efficacy of single-shot opioid spinal analgesia after pancreatoduodenectomy remains understudied and lacks comparison to standard continuous thoracic epidural analgesia (TEA). METHODS: Pancreatoduodenectomy patients who underwent TEA or opioid spinal for postoperative pain management from 2015 to 2020 were included in this observational cohort study. Primary outcome was patient-reported mean daily pain scores. Secondary outcomes included postoperative morphine milligram equivalents (MMEs) and length of stay (LOS). Multivariable linear regression models were constructed to compare risk-adjusted outcomes. RESULTS: 180 patients were included: 56 TEA and 124 opioid spinal. Compared to epidural patients, opioid spinal patients were more likely to be older (67.0 vs. 64.6, p=0.045), have greater BMI (26.5 vs. 24.4, p=0.02), and less likely to be smokers (19.4% vs. 41.1%, p=0.002). Opioid spinal, compared to TEA, was associated with lower intraoperative MMEs (0.25 vs. 22.7, p<0.001) and postoperative daily MMEs (7.9 vs. 10.3, p=0.03) on univariate analysis. However, after multivariable adjustment, there was no difference in average pain scores across the postoperative period (spinal vs. epidural: 4.18 vs. 4.14, p=0.93), daily MMEs (p=0.50), or LOS (p=0.23). DISCUSSION: There was no significant difference in postoperative pain scores, opioid use, or LOS between patients managed with TEA or opioid spinal after pancreatoduodenectomy.

Impact of timing of multimodal analgesia in enhanced recovery after cesarean delivery protocols on postoperative opioids: A single center before-and-after study.

STUDY OBJECTIVE: Enhanced recovery after cesarean delivery (ERAC) programs aim to decrease maternal morbidity and aid in maternal recovery and return to baseline. Multimodal analgesia is an important element of ERAC protocols, but no consensus exists on the timing of medication administration. We compared maternal pain outcomes following scheduled cesarean delivery with modification of the timing of administration of multimodal analgesia with non-steroidal anti-inflammatory drugs (NSAIDs) and acetaminophen. DESIGN: Before-and-after study. SETTING: Labor and delivery unit at a single academic institution. INTERVENTION: NSAIDs and acetaminophen were administered as a fixed-interval alternating regimen every 3 h for the initial ERAC group (ERAC 1) and fixed-interval combined regimen every 6 h for the modified ERAC group (ERAC 2). ERAC 1 and ERAC 2 groups were compared to historical controls (Pre-ERAC). PATIENTS: 520 women undergoing scheduled cesarean delivery (Pre-ERAC n = 179, ERAC 1 n = 179, and ERAC 2 n = 162). MEASUREMENTS: The primary outcomes were postoperative total and daily opioid utilization as measured in morphine milligram equivalents (MME). Secondary outcomes included postoperative length of stay, maximum pain scores, and racial disparities in care. MAIN RESULTS: The modified schedule of non-opioid analgesics involving combined administration (ERAC 2) versus alternating administration (ERAC 1) of multimodal analgesia resulted in decreased total postoperative opioid utilization (median = 26.3 vs 52.5 MME, Bonferroni corrected P = 0.002). Total postoperative opioid utilization among the ERAC 2 group was also significantly reduced compared to the Pre-ERAC group (median = 26.3 vs 105.0 MME, Bonferroni corrected P < 0.0001). CONCLUSIONS: Multidisciplinary teams developing or modifying ERAC protocols for scheduled cesarean delivery should consider a combined administration at fixed intervals of NSAIDs and acetaminophen throughout the hospital stay to optimize postoperative pain management.

Intraoperative transfusion management, antifibrinolytic therapy, coagulation monitoring and the impact on short-term outcomes after liver transplantation-A systematic review of the literature and expert panel recommendations.

BACKGROUND: Liver transplantation (LT) is frequently complicated by coagulopathy associated with end-stage liver disease (ESLD), that is, often multifactorial. OBJECTIVES: The objective of this systematic review was to identify evidence based intraoperative transfusion and coagulation management strategies that improve immediate and short-term outcomes after LT. METHODS: PRISMA-guidelines and GRADE-approach were followed. Three subquestions were formulated. (Q); Q1: transfusion management; Q2: antifibrinolytic therapy; and Q3: coagulation monitoring. RESULTS: Sixteen studies were included for Q1, six for Q2, and 10 for Q3. Q1: PRBC and platelet transfusions were associated with higher mortality. The use of prothrombin complex concentrate (PCC) and fibrinogen concentrate (FC) were not associated with reductions in intraoperative transfusion or increased thrombotic events. The use of cell salvage was not associated with hepatocellular carcinoma (HCC) recurrence or mortality. Cell salvage and transfusion education significantly decreased blood product transfusions. Q2: Epsilon-aminocaproic acid (EACA) and tranexamic acid (TXA) were not associated with decreased blood product transfusion, improvements in patient or graft survival, or increases in thrombotic events. Q3: Viscoelastic testing (VET) was associated with decreased allogeneic blood product transfusion compared to conventional coagulation tests (CCT) and is likely to be cost-effective. Coagulation management guided by VET may be associated with increases in FC and PCC use. CONCLUSION: Q1: A specific blood product transfusion practice is not recommended (QOE; low | Recommendation; weak). Cell salvage and educational interventions are recommended (QOE: low | Grade of Recommendation: moderate). Q2: The routine use of antifibrinolytics is not recommended (QOE; low | Recommendation; weak). Q3: The use of VET is recommended (QOE; low-moderate | Recommendation; strong).

Effect of enhanced recovery after surgery for elective cesarean deliveries on neonatal outcomes.

OBJECTIVE: To evaluate the impact of initiation of an enhanced recovery after cesarean delivery (ERAC) protocol for elective cesarean delivery (CD) on neonatal outcomes. STUDY DESIGN: We performed a retrospective analysis of elective CD at ≥39 weeks gestational age between September 2014 and August 2018 at a single institution before and after ERAC protocol implementation. Our primary outcome was composite neonatal complication rate and secondary outcome was rate of breastfeeding. We performed univariate analyses to detect differences in outcomes between the pre-ERAC and post-ERAC groups. RESULTS: We included 362 neonates born via elective CD before (n = 135) and after (n = 227) ERAC implementation. The post-ERAC group experienced fewer composite neonatal complications (33.0% vs. 47.4%, p = 0.009) and greater breastfeeding rates (80.2% vs. 67.4%, p = 0.009) compared to the pre-ERAC group. CONCLUSION: ERAC protocol implementation does not negatively impact neonates and may benefit both mother and baby.

Distraction in the operating room: A narrative review of environmental and self-initiated distractions and their effect on anesthesia providers.

The operating room (OR) is a busy environment with multiple opportunities for distraction. A well-trained anesthesiologist or certified registered nurse anesthetist (CRNA) should remain focused on providing excellent patient care despite these potential distractions. The purpose of this narrative review is to present the multiple types of OR distractions and evaluate each for their level of distraction and their likely impact on patient safety. Distractions in the OR are common and numerous types of distractions exist. Loud OR background noise can lead to miscommunication within the OR team. In several studies, OR noise has been shown to decrease vigilance and possibly delay recognition of non-routine events. The most commonly observed distracting events are "small talk" and staff entering and exiting the OR and most intense distracting events are faulty or unavailable equipment. Phone and pager use can be particularly distracting. Self-initiated distractions can be seen as unprofessional and can negatively impact patient safety. The impact of OR distractions on patient outcomes deserves more vigorous investigation. We must provide anesthesia trainees with the skills to remain vigilant despite numerous and varied OR distractions while also attempting to reduce such OR distractions to improve patient safety. Further research is needed to inform the institution of policies to lessen unnecessary OR distractions.

Anesthesiologist Age and Sex Influence Patient Perceptions of Physician Competence.

BACKGROUND: Uncovering patients' biases toward characteristics of anesthesiologists may inform ways to improve the patient-anesthesiologist relationship. The authors previously demonstrated that patients prefer anesthesiologists displaying confident body language, but did not detect a sex bias. The effect of anesthesiologists' age on patient perceptions has not been studied. In this follow-up study, it was hypothesized that patients would prefer older-appearing anesthesiologists over younger-appearing anesthesiologists and male over female anesthesiologists. METHODS: Three hundred adult, English-speaking patients were recruited in the Preanesthesia Evaluation and Testing Center. Patients were randomized (150 per group) to view a set of four videos in random order. Each 90-s video featured an older female, older male, younger female, or younger male anesthesiologist reciting the same script describing general anesthesia. Patients ranked each anesthesiologist on confidence, intelligence, and likelihood of choosing the anesthesiologist to care for their family member. Patients also chose the one anesthesiologist who seemed most like a leader. RESULTS: Three hundred patients watched the videos and completed the questionnaire. Among patients younger than age 65 yr, the older anesthesiologists had greater odds of being ranked more confident (odds ratio, 1.92; 95% CI, 1.41 to 2.64; P < 0.001) and more intelligent (odds ratio, 2.24; 95% CI, 1.62 to 3.11; P < 0.001), and had greater odds of being considered a leader (odds ratio, 2.62; 95% CI, 1.72 to 4.00; P < 0.001) when compared with younger anesthesiologists. The preference for older anesthesiologists was not observed in patients age 65 and older. Female anesthesiologists had greater odds of being ranked more confident (odds ratio, 1.46; 95% CI, 1.13 to 1.87; P = 0.003) and more likely to be chosen to care for one's family member (odds ratio, 1.80; 95% CI, 1.40 to 2.31; P < 0.001) compared with male anesthesiologists. The ranking preference for female anesthesiologists on these two measures was observed among white patients and not among nonwhite patients. CONCLUSIONS: Patients preferred older anesthesiologists on the measures of confidence, intelligence, and leadership. Patients also preferred female anesthesiologists on the measures of confidence and likelihood of choosing the anesthesiologist to care for one's family member.

Individualized Quality Data Feedback Improves Anesthesiology Residents' Documentation of Depth of Neuromuscular Blockade Before Extubation.

Reversal of neuromuscular blockade is an important anesthesia quality measure, and anesthesiologists should strive to improve both documentation and practice of this measure. We hypothesized that the use of an electronic quality database to give individualized resident anesthesiologist feedback would increase the percentage of cases that residents successfully documented quantitative depth of neuromuscular blockade before extubation. The mean baseline success rate among anesthesiology residents was 80% (95% confidence interval [CI], 78-81) and increased by 14% (95% CI, 11-17; P < .001) after the residents were given their individualized quality data. Practice patterns improved quickly but were not sustained over 6 months.

Anesthesiology Resident Night Float Duty Alters Sleep Patterns: An Observational Study.

BACKGROUND: Residency programs utilize night float systems to adhere to duty hour restrictions; however, the influence of night float on resident sleep has not been described. The study aim was to determine the influence of night float on resident sleep patterns and quality of sleep. We hypothesized that total sleep time decreases during night float, increases as residents acclimate to night shift work, and returns to baseline during recovery. METHODS: This was a single-center observational study of 30 anesthesia residents scheduled to complete six consecutive night float shifts. Electroencephalography sleep patterns were recorded during baseline (three nights), night float (six nights), and recovery (three nights) using the ZMachine Insight monitor (General Sleep Corporation, USA). Total sleep time; light, deep, and rapid eye movement sleep; sleep efficiency; latency to persistent sleep; and wake after sleep onset were observed. RESULTS: Mean total sleep time ± SD was 5.9 ± 1.9 h (3.0 ± 1.2.1 h light; 1.4 ± 0.6 h deep; 1.6 ± 0.7 h rapid eye movement) at baseline. During night float, mean total sleep time was 4.5 ± 1.8 h (1.4-h decrease, 95% CI: 0.9 to 1.9, Cohen's d = -1.1, P < 0.001) with decreases in light (2.2 ± 1.1 h, 0.7-h decrease, 95% CI: 0.4 to 1.1, d = -1.0, P < 0.001), deep (1.1 ± 0.7 h, 0.3-h decrease, 95% CI: 0.1 to 0.4, d = -0.5, P = 0.005), and rapid eye movement sleep (1.2 ± 0.6 h, 0.4-h decrease, 95% CI: 0.3 to 0.6, d = -0.9, P < 0.001). Mean total sleep time during recovery was 5.4 ± 2.2 h, which did not differ significantly from baseline; however, deep (1.0 ± 0.6 h, 0.4-h decrease, 95% CI: 0.2 to 0.6, d = -0.6, P = 0.001 *, P = 0.001) and rapid eye movement sleep (1.2 ± 0.8 h, 0.4-h decrease, 95% CI: 0.2 to 0.6, d = -0.9, P < 0.001 P < 0.001) were significantly decreased. CONCLUSIONS: Electroencephalography monitoring demonstrates that sleep quantity is decreased during six consecutive night float shifts. A 3-day period of recovery is insufficient for restorative sleep (rapid eye movement and deep sleep) levels to return to baseline.

Generative retrieval results in positive academic emotions and long-term retention of cardiovascular anatomy using transthoracic echocardiography.

With increasing medical knowledge, procedural, and diagnostic skills to learn, it is vital for educators to make the limited amount of teaching time available to students effective and efficient. Generative retrieval is an effective and efficient learning tool, improving long-term retention through the practice of retrieval from memory. Forty medical students were randomized to learn normal cardiovascular anatomy using transthoracic echocardiography video clips in a generative retrieval (GR) or standard practice (SP) group. GR participants were required to verbally identify each unlabeled cardiovascular structure after viewing the video. After answering, participants viewed the correctly labeled video. SP participants viewed the same video clips labeled with the correct cardiovascular structure for the same amount of total time without verbally generating an answer. All participants were tested for intermediate (1-wk), late (1-mo), and long-term (6- to 9-mo) retention of cardiovascular anatomy. Additionally, a three-question survey was incorporated to assess perceptions of the learning method. There was no difference in pretest scores. The GR group demonstrated a trend toward improvement in recall at 1 wk [GR = 74.3 (SD 12.3); SP = 65.4 (SD 16.7); P = 0.10] and 1 mo [GR = 69.9 (SD15.6); SP = 64.3 (SD 15.4); P = 0.33]. At the 6- to 9-mo time point, there was a statistically significant difference in scores [GR = 74.3 (SD 9.9); SP = 65.0 (SD 14.1); P = 0.042]. At nearly every time point, learners had a statistically significantly higher perception of effectiveness, enjoyment, and satisfaction with GR. In addition to improved recall, GR is associated with increased perceptions of effectiveness, enjoyment, and satisfaction, which may lead to increased engagement, time spent studying, and improved retention.