The effect of grouping scale items in union-attitude measurement

Abstract

"A 77 item union-attitude scale was given to two different union groups. Half of each group received a questionnaire with items grouped by subscale; half… received a questionnaire with ungrouped items. Only one of twelve mean differences on six subscales between grouped and mixed was significant. On overall means, the grouped sample was high in one union group, low in the other. No changes in results from grouping of attitude items were shown." (PsycInfo Database Record (c) 2025 APA, all rights reserved)