Sheeran20: Effect Sizes Reported by Sheeran20 et al. (2020)

In mikewlcheung/metasem: Meta-Analysis using Structural Equation Modeling

Effect Sizes Reported by Sheeran20 et al. (2020)

Description

This dataset contains effect sizes derived from Sheeran et al. (2020). It includes standardized mean differences (SMDs) regarding health behaviors, autonomous motivation, and perceived competence, comparing the self-determination theory (SDT) group and control group, and the correlations among the variables. One key difference from the analyses conducted by Sheeran et al. (2020) is that while they used correlation matrices with a d-to-r conversion, this dataset utilizes both standardized mean differences (SMDs) and correlation matrices.

Usage

data(Sheeran20)

Details

The variables are:

Study

Study ID number

n_c

Cluster-adjusted N in the control group

n_t

Cluster-adjusted N in the treatment group

Heal_beh

SMD of the health behaviors between the treatmeant and control groups

Auto_mot

SMD of the autonomous motivation between the treatment and control groups

Per_com

SMD of the perceived competence between the treatment and control groups

r_Auto_mot_Heal_beh

correlation between the autonomous motivation and the health behaviors

r_Per_com_Heal_beh

correlation between the perceived competence and the health behaviors

r_Per_com_Auto_mot

correlation between the perceived competence and the autonomous motivation

Beh_timing

Time between intervention starting and measurement of behavior in weeks

SDT_timing

Time between intervention starting and post-intervention measurement of SDT constructs in weeks

Overweight

Overweight/obese participants composed entire sample

College

University/college students composed entire sample

Adolescents

Adolescents composed entire sample

Clinical_sample

Older adults composed entire sample

Source

Sheeran, P., Wright, C. E., Avishai, A., Villegas, M. E., Lindemans, J. W., Klein, W. M. P., Rothman, A. J., Miles, E., & Ntoumanis, N. (2020). Self-determination theory interventions for health behavior change: Meta-analysis and meta-analytic structural equation modeling of randomized controlled trials. Journal of Consulting and Clinical Psychology, 88(8), 726-737. https://doi.org/10.1037/ccp0000501

Examples

data(Sheeran20)

mikewlcheung/metasem documentation built on June 15, 2025, 10:43 a.m.