The present paper questions the content validity of the eight creativity-related self-report scales available in PISA 2022's context questionnaire and provides a set of considerations for researchers interested in using these indexes. Specifically, we point out some threats to the content validity of these scales (e.g., "creative thinking…

Attachment theory asserts that human beings are innately programmed to seek and form attachments with others. The assumption that the quality of early attachment relationships will be functionally related to subsequent attachment styles and competencies provides the theoretical basis for extending the theory of attachment to the study of adult…

Research relating to the factor structure of the Sixteen Personality Factor Questionnaire (16PF) and the Clinical Analysis Questionnaire is reviewed. Different opinions about the factors measured by the 16PF are discussed. Focusing on the second-order factor level could eliminate problems with the instruments' reliability. (SLD)