Considerations of how to conduct meta-analyses in psychological interventions

Affiliations

• ¹ a Department of Psychology , University of Zürich , Zürich , Switzerland.
• ² b Palo Alto Veterans Administration Medical Center , Palo Alto , CA , USA.
• ³ c Trainer Academic Writing , Bern , Switzerland.
• ⁴ d Department of Counseling Psychology , University of Madison-Wisconsin , Madison , WI , USA.
• ⁵ e Department of Psychology , University of Massachusetts Boston , Boston , MA , USA.
• ⁶ f Psychologische Hochschule Berlin , Berlin , Germany.
• ⁷ g Department of Psychology , Metropolitan State University , Saint Paul , MN , USA.
• ⁸ h Department of Psychology , Idaho State University , Pocatello , ID , USA.
• ⁹ i Modum Bad Psychiatric Center , Modum Bad , Norway.