Longitudinal Effects of a sit-stand desk intervention - persistence, Fade-Out, and psychological momentum: a Randomized Controlled Trial.

Background: This study examined whether the effects of a sit-stand desk (SSD) intervention on employees' musculoskeletal complaints (i.e., intensity and prevalence) and activation (i.

Teams in Transition: A Three-Wave Longitudinal Study of Reflection, Implicit and Explicit Coordination and Performance Improvements.

Research has shown that team reflection is a critical transition process for coordination processes and team performance, but our understanding of its dynamics and relationship to action processes and performance is incomplete. The goal of the present study was to examine the long-term change in reflection in teams over time and explore whether these changes are related to implicit and explicit coordination processes and performance improvement. Drawing on the recurring phase model of team processes and team reflexivity theory, we hypothesized that team reflection is at least stable or increases over time for dissimilar tasks, that reflection trajectories are positively associated with implicit and negatively associated with explicit coordination in the later phases, and that implicit coordination mediates the relationship between team reflection and performance improvement.

Goal-directed rumination and its antagonistic effects on problem solving: a two-week diary study.

Background: The tendency to repetitively and intrusively think about a particular negative event, goal failure, or problem (i.e., goal-directed rumination) is generally associated with impairments in well-being, thus decreasing performance in solving this failure.

Academic performance: A longitudinal study on the role of goal-directed rumination and psychological distress.

Background: In this research, we examine the relationship between goal-directed rumination, psychological distress, and performance. Although previous research has largely contributed to our understanding of how these constructs are related, the direction of their relationships remains unclear.

Objectives: We argue that goal-directed rumination and psychological distress (conceived as perceived stress and strain) are reciprocally related, and that goal-directed rumination has a positive effect on performance when controlling for the negative effect of psychological distress.

Beneficial, adverse, and spiraling health-promotion effects: Evidence from a longitudinal randomized controlled trial of working at sit-stand desks.

In a 6-month longitudinal randomized field experiment, we examined how using height-adjustable sit-stand desks could have beneficial, adverse, and spiraling effects on people's musculoskeletal and psychovegetative complaints, and on positive (vitality and vigilance) and negative psychological symptoms, namely, stressor uncontrollability (i.e., perceived uncontrollability of workload), psychological tension, and mental tiredness.

Politicization as an antecedent of polarization: Evidence from two different political and national contexts.

Using longitudinal research designs, we examine the role of politicization in the development of polarization. We conducted research in two different political and national contexts. In Study 1, we employ a panel sample of supporters of the Tea Party movement in the United States and examine the relationship between the strength of their politicization and their subsequent feelings towards conservatives versus liberals (affective polarization) as well as their subsequent perceptions of commonalities with conservatives versus liberals (cognitive polarization).