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What Do Confidence Items Measure in the Physical Activity Domain? 1
Author(s) -
Rhodes Ryan E.,
Blanchard Chris M.
Publication year - 2007
Publication title -
journal of applied social psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 111
eISSN - 1559-1816
pISSN - 0021-9029
DOI - 10.1111/j.1559-1816.2007.00184.x
Subject(s) - psychology , confidence interval , listing (finance) , self confidence , physical activity , domain (mathematical analysis) , measure (data warehouse) , social psychology , statistics , mathematics , computer science , medicine , data mining , mathematical analysis , finance , economics , physical medicine and rehabilitation
The study's purpose was to examine the measurement domain of confidence items used in physical activity research. We hypothesized that confidence items, including a phrase to hold motivation constant, would differ from standard confidence items. Participants ( N = 248 students) completed confidence items, a thought‐listing procedure, and a 2‐week self‐report of physical activity. Results showed that confidence items with motivation held constant loaded exclusively on one factor, but standard confidence items were factor complex with intention. Correlations with physical activity intention and behavior were larger for confidence items than confidence items with motivation held constant. Finally, the thought‐listing procedure identified that 3 of the 7 reasons for answering confidence items were outside the intended measurement domain of self‐efficacy.