Estimating the Reliability of Emotion Measures Over Very Short Intervals: The Utility of Within-Session Retest Correlations

Short measures are commonly used when conducting research involving emotions. However, obtaining appropriate estimates of reliability for short measures is traditionally problematic and is a reoccurring concern in emotion research. To address this issue, we compare the within-session test-retest and...

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Bibliographic Details
Published in:Emotion (Washington, D.C.) D.C.), 2018-09, Vol.18 (6), p.896-901
Main Authors: Lowman, Graham H., Wood, Dustin, Armstrong, Benjamin F., Harms, P. D., Watson, David
Format: Article
Language:English
Subjects:
Adult
Behavioral Research - methods
Behavioral Research - standards
Emotions
Estimation
Factor Analysis
Factor Analysis, Statistical
Female
Human
Humans
Male
Negative Emotions
Positive Emotions
Reproducibility of Results
Surveys and Questionnaires
Test Forms
Test Items
Test Reliability
Test-Retest Reliability
Young Adult
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Summary:Short measures are commonly used when conducting research involving emotions. However, obtaining appropriate estimates of reliability for short measures is traditionally problematic and is a reoccurring concern in emotion research. To address this issue, we compare the within-session test-retest and factor analysis methods for estimating the reliability of items in the Positive and Negative Affect Schedule-Expanded Form. Results indicate that within-session test-retest (rXX(d)) estimates outperform the factor analysis method by demonstrating stronger relationships with item properties relevant to reliability and validity-related criteria. In addition, rXX(d) estimates appropriately generalize across samples with various instruction stems and prevent corrections for attenuation greater than 1.00. Therefore, we encourage researchers to use the corresponding average item-level rXX(d) estimates reported here to correct for attenuation when examining single items from the Positive and Negative Affect Schedule-Expanded Form if a test-retest design is not feasible.
ISSN:1528-3542
1931-1516
DOI:10.1037/emo0000370