TY - JOUR
T1 - Evaluating Validity and Test-Retest Reliability in Four Drive for Muscularity Questionnaires
AU - Tod, D.
AU - Morrison, Todd G.
AU - Edwards, Christian
PY - 2012/6
Y1 - 2012/6
N2 - The current study assessed relationships among four commonly used drive for muscularity questionnaires, along with their 7 and 14 day test–retest reliability. Sample 1 was comprised of young British adult males (N = 272; MAGE = 20.3) who completed the questionnaires once. Sample 2, a group of young British adult males (N = 54, MAGE = 19.3), completed the questionnaires three times spaced 7 and 14 days apart. Correlations among Sample 1 ranged from .20 to .82 providing evidence for concurrent and discriminant validities. Evidence for test–retest reliability emerged with intraclass correlations ranging from .78 to .95 (p < .001) and generally nonsignificant t-tests (p > .05). Overall, the data support the psychometric properties of the drive for muscularity inventories; however, the shared variance (35–67%) hints that refinement is possible.
AB - The current study assessed relationships among four commonly used drive for muscularity questionnaires, along with their 7 and 14 day test–retest reliability. Sample 1 was comprised of young British adult males (N = 272; MAGE = 20.3) who completed the questionnaires once. Sample 2, a group of young British adult males (N = 54, MAGE = 19.3), completed the questionnaires three times spaced 7 and 14 days apart. Correlations among Sample 1 ranged from .20 to .82 providing evidence for concurrent and discriminant validities. Evidence for test–retest reliability emerged with intraclass correlations ranging from .78 to .95 (p < .001) and generally nonsignificant t-tests (p > .05). Overall, the data support the psychometric properties of the drive for muscularity inventories; however, the shared variance (35–67%) hints that refinement is possible.
KW - Drive for muscularity
KW - Body image
KW - Psychometrics
KW - Concurrent validity
KW - Discriminant validity
KW - Test–retest reliability
UR - http://hdl.handle.net/2160/8781
U2 - 10.1016/j.bodyim.2012.02.001
DO - 10.1016/j.bodyim.2012.02.001
M3 - Article
C2 - 22398333
SN - 1873-6807
VL - 9
SP - 425
EP - 428
JO - Body Image
JF - Body Image
IS - 3
ER -