How the Complexity of Psychological Processes Reframes the Issue of Reproducibility in Psychological Science.

In the past decade, various recommendations have been published to enhance the methodological rigor and publication standards in psychological science. However, adhering to these recommendations may have limited impact on the reproducibility of causal effects as long as psychological phenomena continue to be viewed as decomposable into separate and additive statistical structures of causal relationships. In this article, we show that (a) psychological phenomena are patterns emerging from nondecomposable and nonisolable complex processes that obey idiosyncratic nonlinear dynamics, (b) these processual features jeopardize the chances of standard reproducibility of statistical results, and (c) these features call on researchers to reconsider what can and should be reproduced, that is, the psychological processes per se, and the signatures of their complexity and dynamics.

Development and Validation of the Approach-Avoidance System Questionnaire (AASQ).

Gernigon et al. (2015) recently proposed a dynamical model of approach and avoidance, according to which approach and avoidance patterns are accounted for by a control parameter , which results itself from the interactions among a limited number of key social-cognitive variables: competence expectancies (), benefit for the self ( ), and threat for the self ( ). The present research aimed to develop and validate a French questionnaire that measures these variables, the Approach-Avoidance System Questionnaire (AASQ).

Time-out! How psychological momentum builds up and breaks down in table tennis.

The current study examined the development of psychological momentum (PM) in table tennis and the effect of a time-out. Eighty table tennis players were exposed to an audiovisual scenario, in which they either came back from 1-7 to 7-7 in an all-decisive game (positive momentum), or in which the opponent came back from 7-1 to 7-7 (negative momentum). Furthermore, at the score of 7-7 a time-out was called.

Measuring the Processes of Change From the Transtheoretical Model for Physical Activity and Exercise in Overweight and Obese Adults.

Purpose: This study aimed to test three factorial structures conceptualizing the processes of change (POC) from the transtheoretical model and to examine the relationships between the POC and stages of change (SOC) among overweight and obese adults.

Design: Cross-sectional study.

Setting: This study was conducted at the University Hospital of Montpellier, France.

Psychological Momentum During and Across Sports Matches: Evidence for Interconnected Time Scales.

This study on psychological momentum (PM) in sports provides the first experimental test of an interconnection between short-term PM (during a match) and long-term PM (across a series of matches). Twenty-two competitive athletes were striving to win a prize during a rowing-ergometer tournament, consisting of manipulated races. As hypothesized, athletes who had developed long-term positive PM after two successful races were less sensitive to a negative momentum scenario in the third race, compared with athletes who had developed long-term negative PM after two unsuccessful races.

Pink Noise in Rowing Ergometer Performance and the Role of Skill Level.

The aim of this study was to examine (1) the temporal structures of variation in rowers’ (natural) ergometer strokes to make inferences about the underlying motor organization, and (2) the relation between these temporal structures and skill level. Four high-skilled and five lower-skilled rowers completed 550 strokes on a rowing ergometer. Detrended Fluctuation Analysis was used to quantify the temporal structure of the intervals between force peaks.

Reference system of competence and engagement in adapted physical activities of people with recent spinal cord injury.

Purpose: This study tested whether persons with Recent Spinal Cord Injury (RSCI) who practice adapted physical activities (APA) and those who do not differ with regard to achievement goals, physical self-perceptions, and global self-esteem.

Method: Adults with RSCI in rehabilitation centers voluntarily completed questionnaires of achievement goals and self-esteem. Then, based on whether they engaged or not in APA programs, they were considered participants or non-participants in APA.

How psychological and behavioral team states change during positive and negative momentum.

In business and sports, teams often experience periods of positive and negative momentum while pursuing their goals. However, researchers have not yet been able to provide insights into how psychological and behavioral states actually change during positive and negative team momentum. In the current study we aimed to provide these insights by introducing an experimental dynamical research design.

Validation of the TTM processes of change measure for physical activity in an adult French sample.

Background: Processes of change (POC) are constructs from the transtheoretical model that propose to examine how people engage in a behavior. However, there is no consensus about a leading model explaining POC and there is no validated French POC scale in physical activity

Purpose: This study aimed to compare the different existing models to validate a French POC scale.

Method: Three studies, with 748 subjects included, were carried out to translate the items and evaluate their clarity (study 1, n = 77), to assess the factorial validity (n = 200) and invariance/equivalence (study 2, n = 471), and to analyze the concurrent validity by stage × process analyses (study 3, n = 671).

Acute supra-therapeutic oral terbutaline administration has no ergogenic effect in non-asthmatic athletes.

This study aimed to investigate the effects on a possible improvement in aerobic and anaerobic performance of oral terbutaline (TER) at a supra-therapeutic dose in 7 healthy competitive male athletes. On day 1, ventilatory threshold, maximum oxygen uptake [Formula: see text] and corresponding power output were measured and used to determine the exercise load on days 2 and 3. On days 2 and 3, 8 mg of TER or placebo were orally administered in a double-blind process to athletes who rested for 3 h, and then performed a battery of tests including a force-velocity exercise test, running sprint and a maximal endurance cycling test at Δ50 % (50 % between VT and [Formula: see text]).

The dynamics of psychological momentum in sport: the role of ongoing history of performance patterns.

Borrowing the dynamical systems perspective, two studies aimed to examine the potential properties of nonlinearity and history dependence of psychological momentum. Male regional-level table tennis players were asked to empathize with players in a very important contest by watching two video scenarios of a table tennis game in two separate sessions. The videos presented two inverted scenarios in which score gaps gradually increased or decreased.

The influence of trained peer tutoring on tutors' motivation and performance in a French boxing setting.

The aim of this study was to examine the potential motivational and behavioural benefits of two peer tutoring programmes for tutors in a sport setting. Differences between the sexes were also explored. Thirty two college-age males and females, all novices on a French boxing task, were assigned to a 2 x 2 [sex x training type: physical practice associated with trained peer tutoring (TPT) vs physical practice associated with untrained peer tutoring (UPT)] factorial design.

Peer-Assisted Learning in the Physical Activity Domain: Dyad Type and Gender Differences.

The purposes of this study were to qualitatively analyze peer interaction in dyads practicing a swimming skill, and to examine the potential dyad type-by-gender differences in observed peer interaction modes. Sixty-four senior high school students (32 M, 32 F) trained for 8 min either in symmetrical (same competence) or asymmetrical (different competence levels) same-sex dyads. The numbers of attempts and performance scores were also documented for novices.