Nature

Psychometric analysis of the Three-Factor Eating Questionnaire-R21: results from a large diverse sample of obese and non-obese participants

The 21-item Three-Factor Eating Questionnaire (TFEQ-R21) is a scale that measures three domains of eating behavior: cognitive restraint (CR), uncontrolled eating (UE) and emotional eating (EE). Data ...
CMAJ

Optimal cut-off score for diagnosing depression with the Patient Health Questionnaire (PHQ-9): a meta-analysis

Background: The brief Patient Health Questionnaire (PHQ-9) is commonly used to screen for depression with 10 often recommended as the cut-off score. We summarized the psychometric properties of the ...

AI can improve mental health questionnaires by detecting overlaps and redundancies

Large language models can help improve questionnaires used to diagnose mental illness by optimizing symptom generalizability ...
JSTOR Daily

Longitudinal analysis of the strengths and difficulties questionnaire scores of the Millennium Cohort Study children in England using M-quantile random-effects regression

This is a preview. Log in through your library . Abstract Multilevel modelling is a popular approach for longitudinal data analysis. Statistical models conventionally target a parameter at the centre ...
CMAJ

A guide for the design and conduct of self-administered surveys of clinicians

Survey research is an important form of scientific inquiry1 that merits rigorous design and analysis.2 The aim of a survey is to gather reliable and unbiased data from a representative sample of ...
Pew Research Center

A short intro to linear regression analysis using survey data

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Many of Pew Research Center’s survey analyses show relationships between two ...