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The adjustable light beam method for the assessment of size estimation accuracy: Description, psychometric, and normative data
Author(s) -
Thompson J. Kevin,
Spana Richard Enrico
Publication year - 1988
Publication title -
international journal of eating disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.785
H-Index - 138
eISSN - 1098-108X
pISSN - 0276-3478
DOI - 10.1002/1098-108x(198807)7:4<521::aid-eat2260070410>3.0.co;2-h
Subject(s) - normative , psychometrics , statistics , reliability (semiconductor) , discriminant validity , psychology , discriminant , estimation , test validity , mathematics , computer science , physics , artificial intelligence , internal consistency , engineering , philosophy , power (physics) , epistemology , quantum mechanics , systems engineering
Description, psychometrics, and normative data for an ajustable light beam apparatus for the assessment of size estimation accuracy are presented. Alpha coefficient and test‐retest reliability indices are within desirable limits. Comparison of size estimation scores with affective measures of body satisfaction indicates strong discriminant validity. Normative data on 159 females indicates that subjects overestimate the size of their waist, hips and thighs; average overestimation is 21%. The need for further research is discussed.