If a study provides multiple correlations addressing the same substantive relationship of interest, it may make sense to aggregate them. Reliability corrections should still generally be made. Yet, the reliability of the composite will not be immediately available.
How to calculate the reliability of the composite variables?
How to correct a correlation for reliability when it is a composite of more than one correlation?
If a study provides multiple correlations addressing the same substantive relationship of interest, it may make sense to aggregate them. Reliability corrections should still generally be made. Yet, the reliability of the composite will not be immediately available.