Compositional insights on the association between physical activity and sedentary behavior on momentary mood in daily life

ObjectiveGiven the increasing number of mental disorders, a growing body of studies now focuses on the relationship between physical activity (PA), sedentary behavior (SB), and mental health. However, momentary mechanisms and interrelatedness between PA, SB, and mood in daily life are highly understudied.MethodsTo investigate whether the composition of light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), and SB influences mood, we conducted an Ambulatory Assessment study in the everyday life of 103 university students over five days. We measured PA and SB via accelerometers and assessed mood up to six times each day on smartphone diaries. We combined compositional data analyses (CoDA) with multilevel modeling to analyze within-person effects of the behavioral composition on mood.ResultsHigher ratio of the SB to LPA and MVPA composition within the 60 min prior to a diary rating negatively influenced valence (p = 0.006) and energetic arousal (p < 0.001). Furthermore, a higher ratio of LPA to SB and MVPA positively influenced energetic arousal (p < 0.001) and a higher ratio of MVPA to SB and LPA positively influenced valence (p = 0.004) and energetic arousal (p = 0.022). Simulation analyses revealed that replacing 20 min of SB with PA can influence mood rating up to 3.39 units [range from 0–100].ConclusionsFindings suggest that minutely replacements of SB with PA may lead to mood enhancements. Given the high prevalence of mental disorders, more studies are warranted to deepen the understanding of momentary compositional mechanisms between SB, PA, and mood. Applying CoDA to intensive longitudinal data can serve as a starting point to identify the optimal composition of SB, LPA, and MVPA for mood enhancements in everyday life.     

A Latent Growth Curve Modeling Approach to Pooled Interrupted Time Series Analyses

This paper presents a latent variable approach for the estimation of treatment effects within a pooled interrupted time series (ITS) design. Although considered quasi-experimental, the ITS design has been noted as representing one of the strongest alternatives to the randomized experiment, making it highly appropriate for use in documenting the presence of effects that might warrant further evaluation in a large-scale randomized study. Results suggest that the latent variable growth modeling (LGM) is capable of detecting simultaneous differences in both level and slope, and provides tests of significance for these two necessary indicators of an ITS intervention effect. As shown in the analyses, the LGM framework provides a comprehensive and flexible approach to research design and data analysis, making available to a wide audience of researchers an analytical framework for a variety of analyses of growth and developmental processes.     

Dynamics of choice: a tutorial

Choice may be defined as the allocation of behavior among activities. Since all activities take up time, choice is conveniently thought of as the allocation of time among activities, even if activities like pecking are most easily measured by counting. Since dynamics refers to change through time, the dynamics of choice refers to change of allocation through time. In the dynamics of choice, as in other dynamical systems that include feedback, change is away from perturbation and toward a steady state. Steady state or equilibrium is assessed on a longer time scale than change because change is only visible on a smaller time scale. When we compare laws of equilibrium, such as the matching law with laws of dynamics, two possibilities emerge. Self-similarity occurs when the same law can be seen across smaller time scales, with the result that the law at longer time scales may be understood as the expression of its application at smaller time scales. Reduction occurs when the dynamics at a small time scale are incommensurate with the dynamics at longer time scales. Then the process at the longer time scale is reduced to a qualitatively different process at the smaller time scale, as when choice is reduced to switching patterns. When reduction occurs, the dynamics at the longer time scale may be derived from the process at the smaller time scale, but not the other way around. Research at different time scales is facilitated by the molar view of behavior.     

The reliability and construct validity of scores on the Japanese version of an academic self‐concept scale for a sample of college students1

Abstract: This study investigated the internal consistency, reliability, and construct validity of scores on the Japanese version of the Dimensions of Self‐Concept (DOSC) academic self‐concept scale for a sample of 177 students at a small Japanese private college. Confirmatory factor analyses showed promising support for the construct validity of scores on the six factor subscales (Level of Aspiration, Anxiety, Academic Interest and Satisfaction, Leadership and Initiative, Identification versus Alienation, and Stress), representing the six hypothesized constructs of academic self‐concept. Internal consistency reliability of scores on the six subscales ranged from 0.82 to 0.87.     

广告心理学中的眼动研究和发展趋势

通过眼动分析可以比较深入地考察人们在观看广告时的心理活动。早在二十世纪二十年代国外已经有人进行了这方面的研究。本文对国外的广告心理学的眼动研究进行了较为全面的回顾．同时对这个领域的研究现状和发展趋势进行了简要的评述与展望。     

Who is empowered? Relative importance of dispositional and situational sources to psychological empowerment

Major reviews of psychological empowerment (PE) suggest four broad sources to becoming empowered: organizational, leadership, job, and dispositional. This study examines the redundancy, uniqueness, and relative importance within and across these situational and dispositional domains using commonality and dominance analyses. Across multiple samples, we find (a) within socio-structural domains, empowering leadership, knowledge sharing, and task significance are the most unique organizational sources of PE, (b) dispositional predictors augment situational features in explaining PE, and, perhaps most importantly, (c) job characteristics (JC) along with core self-evaluation (CSE) occupy the most dominant role on PE. In study 1 (N = 229), rank and CSE accounted for 64% of the variance in PE after accounting for information distribution, leadership, and the Big Five. Controlling for expanded Big Five inventory, leadership constructs, and socio-structurally features, study 2 (N = 171) finds general dominance of task significance (14%), empowering leadership (19%), and reduced, albeit incremental, effect of CSE (10%). Finally, study 3 (N = 386) replicates the large (30%) and moderately (10%) dominant effects of multiple JC dimensions and CSE. Implications call for a micro-level approach to PE emphasizing expanded roles, broadened self-concept, and personal impact on society rather than inspiring managers or organizational practices.     

Behavior,process, and scale: Comments on Shimp (2020), “Molecular (moment-to-moment) and molar (aggregate) analyses of behavior”

If we study the behavior of organisms, we must understand the ontological status of both “organism” and “behavior.” A living organism maintains itself alive by constantly interacting with the environment, taking in energy and discarding waste. Ontologically, an organism is a process. Its interactions with the environment, which constitute its behavior, are processes also, because the parts of any process are themselves processes. Processes serve functions, and the function of a process must be part of its identity. A process, by definition, extends in time. Time is the fundamental and universal measure of behavior. All processes have the property of scale. Activities of an organism have parts that are themselves activities on a smaller time scale. Scale varies continuously, and behavior may be studied on as large or as small a time scale as seems necessary. When researchers refer to the “structure” of behavior, they refer to smaller-scale activities. Attaching a switch to a lever or key is convenient, but one should never confuse operation of a switch with a unit of behavior. Shimp's (2020) “molecular” measures are small-scale measures. The molecular view based on discrete events has outlived its usefulness and should be replaced by a multiscale molar paradigm.     

On the longitudinal interplay between perfectionism and general affect in adolescents

Cross-sectional studies on perfectionism and general affect tend to interpret their findings suggesting affect is an outcome of perfectionism. However, personality theories posit that individual differences in general affect may also influence perfectionism. Expecting to find bidirectional relations, this 3-wave study sought to examine the longitudinal interplay between perfectionism and general affect in a sample of 489 adolescents (54% female) aged 12–19 years. Cross-lagged panel analyses showed a positive unidirectional effect from positive affect to perfectionistic standards as well as a positive bidirectional effect between perfectionistic concerns and negative affect. As expected, general affect was both an antecedent and an outcome of perfectionism. Implications of the findings for the development and outcomes of perfectionism are discussed.     

Psychometric properties of the Turkish version of the Flourishing Scale and the Scale of Positive and Negative Experience

ABSTRACT

The Flourishing Scale (FS) and the Scale of Positive and Negative Experience (SPANE) are scales that are newly introduced to evaluate well–being. The present study aims to assess the psychometric distinctive features of two scales by utilising two different Turkish samples: university students (n?=?320), and employees (n?=?180). Confirmatory factor analysis results demonstrate that a one-factor model of the FS and a two–factor model of the SPANE yield significant findings in those samples. Scales’ factorial structures are valid for gender groups also they have good internal consistency. Concurrent validity, and discriminant validity with the use of several conceptually related and unrelated measures in two samples reveal satisfactory validity results for both the FS and the SPANE. The results of the present study show the utility of these scales in Turkish culture.