Question: D'angelo and his research team are developing a new impulsive buying scale. D'angelo suggests that the team develop more than one item to measure the
D'angelo and his research team are developing a new impulsive buying scale. D'angelo suggests that the team develop more than one item to measure the construct because:
Multiple item scales are more reliable than single item scales
Most personality trait scales (at least in marketing) have multiple items
Respondents might get bored if there was only one item
Then the team can pick the best item for use in the study
Multiple items support discriminant validity
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