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Instrument development
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Methods used to generate items (e.g., items derived from existing instruments; new items generated from data from interviews or comprehensive review of theory)
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Methods used to refine instrument
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Administration & scoring
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Method of administration (e.g., self-administered, facilitated)
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Feasibility of administration (e.g., researcher time, resources)
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Acceptability to respondents (e.g., views on burden and complexity)
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Methods of scoring and analysis
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Measurement properties
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Methods and findings of assessments of:
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Content validity (e.g., clear description of content domain and theoretical basis, expert assessment of items for relevance and comprehensiveness)
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Construct validity
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- Instrument structure (e.g., using factor analytic methods)
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- Hypothesis testing (e.g., whether scores on the instrument converge with measures of theoretically related variables, discriminate between groups, predict relevant outcomes)
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Reliability (e.g., internal consistency, stability over time, inter-rater)
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Responsiveness
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Other assessments
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Interpretability (potential for ceiling and floor effects; guidance on what constitutes an important change or difference in scale scores)
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Generalizability (sampling methods, description of sample, and response rate reported)
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