Story perspectives

Depression Scales Inconsistent Across IQ Levels, Study Finds

5/21/2026

Summary

Story summary

Researchers found that standard depression questionnaires give inconsistent results across intelligence levels, questioning screening reliability.
Stanislaw Czerwinski of the University of Gdansk and his team’s analysis of U.S. survey data confirmed the scales fail to measure depression consistently across IQ levels.
Psychiatric nurse Nicole Beaulieu Perez warned that flawed questionnaires could compromise clinical assessments, obscure health disparities, and that digital sleep tracking and experience-sampling should be used as alternatives.

1 of 1

Story summary

Researchers found that standard depression questionnaires give inconsistent results across intelligence levels, questioning screening reliability.
Stanislaw Czerwinski of the University of Gdansk and his team’s analysis of U.S. survey data confirmed the scales fail to measure depression consistently across IQ levels.
Psychiatric nurse Nicole Beaulieu Perez warned that flawed questionnaires could compromise clinical assessments, obscure health disparities, and that digital sleep tracking and experience-sampling should be used as alternatives.