| Summary: | IntroductionMental health literacy is receiving increasing research attention due to growing concerns for mental health globally. Among children, teachers have recently been recognized as playing a vital role in the recognition and reporting of potential mental health issues.MethodsA nationally sampled cross-section of teachers was surveyed to examine the discriminant validity of the mental health literacy measure across levels of teaching. A survey collected a total of n = 369 teacher responses in Switzerland (Kindergarten = 76, Primary = 210, Secondary = 83). Item response theory (IRT) analyses were conducted.ResultsInspection of psychometric properties indicated removal of two weak performing items. The 15-item measure exhibited a significant mean difference, such that class-responsibility function scored higher (M = 2.86, SD = .45) than non-responsible function (M = 2.68, SD = .45) teachers [t(309) = −2.20, p = .01]. It also exhibited a significant mean difference, such that more subjective experienced scored higher (M = 2.86, SD = .45) than less subjective experienced (M = 2.68, SD = .45) teachers [t(210) = −8.66, p < .01].DiscussionHypotheses regarding age and role tenure were in the expected direction, but non-significant. The MHL measure for teachers demonstrated sound measurement properties supporting usage across teaching levels.
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