Time-Dependent Changes in Depressive Symptoms Among Control Participants in Digital-Based Psychological Intervention Studies: Meta-analysis of Randomized Controlled Trials.

J Med Internet Res · 2023 · PMC10134030 · PMID 37043276

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highly significantno p-value reported

In psychosocial intervention research, studies that adopt a quasi-experimental design might overstate the treatment efficacy by not being able to account for the highly significant nontreatment effects, as quantified in this study.

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