There has been increasing interest in applying integrative data analysis (IDA) to analyze data across multiple studies to increase sample size and statistical power. Measures of a construct are frequently not consistent across studies. This article provides a tutorial on the complex decisions that occur when conducting harmonization of measures…

In the current article, we describe the development and validation of a self-report measure of self-generated stress and its associations with measures of perfectionism, self-criticism, and distress. The Self-Generated Stress Scale is a seven-item inventory that taps the tendency to see oneself as someone who generates and adds to existing…

Approximately 30% of students drop out from Norwegian upper secondary schools. Academic achievement, as indexed by grade point average (GPA), is one of the strongest predictors of dropout. The present study aimed to examine the role of cognitive, school-related and affective/psychological predictors of GPA. In addition, we examined the…