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Measurement validity, cognitive interviewing, survey experiments, weighting caveats, and decision-grade survey programs. Mix of single-answer and multiple-answer items.
Bias types, scale design, branching logic, NPS caveats, and analyzing response patterns. Mix of single-answer and multiple-answer items.
Bias-aware questionnaires: goals, question types, and basic sampling. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.
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