Modeling daily fluctuations in everyday cognition and health behaviors at general and person-specific levels: a GIMME analysis

Dai, Shenghai; Kehinde, Olasunkanmi James; Schmitter‐Edgecombe, Maureen; French, Brian F.

doi:10.1007/s41237-022-00191-x

Cited by 3 publications

(1 citation statement)

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“…While a generalized target of 60 data points per person [ 67 ] has been recommended for GIMME, simulation studies should also be conducted to tailor sample size needs to specific research questions [ 21 ]. For example, Dai et al [ 68 ] produced person-specific models for physical activity (in addition to other variables, such as mental sharpness and social engagement) with 36 participants who had 13–25 data points. As repeated performance of physical activity elicits physiological and psychological adaptations, it is reasonable to consider that initial person-specific maps of determinants may evolve (or become obsolete) over time.…”

Section: Discussionmentioning

confidence: 99%

Exploring person-specific associations of situational motivation and readiness with leisure-time physical activity effort and experience

Strohacker,

Sudeck,

Ibrahim

et al. 2024

PLoS ONE

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Identifying determinants of leisure-time physical activity (LTPA) often relies on population-level (nomothetic) averages, potentially overlooking person-specific (idiographic) associations. This study uses an idiographic perspective to explore how subjective readiness and motives for LTPA relate to volitional effort (duration, intensity) and affective experience (pleasure, displeasure). We also highlight the potential for different interpretations when data are averaged within individuals and assessed using a variable-centered approach. Participants (N = 22, 25±8 years old, 54.5% women) were asked to continue their regular PA patterns for 10 weeks. Ecological momentary assessment procedures allowed participants to provide pre-activity reports (physical, cognitive, emotional readiness and situational motive for activity) and post-activity reports (activity type, duration, perceived exertion, ratings of affective valence). Spearman rank correlation was implemented to interpret within- and between-person associations. Data visualization approaches were used to showcase person-specific differences in associations. Participants provided 519 reports of LTPA (24±11 events/person), which displayed between- and within-person variety in type, duration, intensity, and affective experience. Exemplar cases highlight discrepancies in interpretation based on level of analysis, such that the nomothetic association (rho = .42, p = .05; 95% CI -.02, .72) between motive to replenish energy and LTPA duration was observed in only one within-person analysis (41% were weak-to-large inverse effects). Alternatively, the negligible nomothetic association (rho = .02, p = .93; 95% CI -.41, .44) between physical readiness and LTPA-related affect did not reflect the 59% of within-person analyses showing moderate-to-large, positive effects. Future research aiming to identify determinants of LTPA effort and experience should integrate contemporary, idiographic analyses in early-stage research for developing person-specific strategies for LTPA promotion.

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Section: Discussionmentioning

confidence: 99%