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Proportions and frequencies of purposes authors cite for assessing PSQ. Data source: survey of first authors. Descriptive, descriptive assessment only; Inclusion, inclusion criteria; Pred/Mod, use of quality as a predictor or moderator; PubBias, publication bias; Sen/Sub, sensitivity/subgroup analysis. N = 42. Because authors were able to indicate more than one purpose, proportions do not sum to 1.
