Validation of the 10-item Kessler Psychological Distress Scale (K10) in the 2012 Aboriginal Peoples Survey.
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Bibliographic record
Abstract
BACKGROUND: The 10-item Kessler Psychological Distress Scale (K10) is a short measure of non-specific psychological distress, which has been shown to be a sensitive screen for the Diagnostic and Statistical Manual of Mental Disorders criteria for anxiety and mood disorders. The scale has yet to be validated as a measure of psychological distress for Aboriginal peoples in Canada. DATA AND METHODS: Using the 2012 Aboriginal Peoples Survey (APS), this study examined the psychometric properties of the K10 for First Nations people living off reserve, Métis, and Inuit aged 15 or older. The factor structure and internal consistency of the K10 were examined via confirmatory factor analysis and Cronbach's alpha, respectively. Descriptive statistics by sex, education, household income, and age group were provided for the scale. K10 construct validity was further assessed by examining associations with mental health variables in the 2012 APS: self-rated mental health, self-reported diagnosed mood and anxiety disorders, and self-reported suicidal ideation in the past 12 months. RESULTS: A unidimensional "Distress" model with correlated errors was a good fit to the data. Cronbach's alpha values were satisfactory. K10 mean scores were positively skewed, with most respondents reporting few or no distress symptoms. Females and respondents with lower education and household income levels had significantly higher distress. Respondents aged 55 or older had significantly lower distress than their younger counterparts. K10 mean scores were significantly higher for respondents who reported poor mental health, a diagnosed mood disorder, a diagnosed anxiety disorder, or suicidal ideation in the past 12 months. Results were consistent across all three Aboriginal groups. INTERPRETATION: Based on the 2012 APS, the total score of the K10 appears to be psychometrically sound for use as a broad measure of non-specific psychological distress for First Nations people living off reserve, Métis, and Inuit.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it