Abstract
While affect is frequently measured with experience sampling methodology (ESM), the affective structure at the between- and within-person level has not been thoroughly investigated. We investigated the affective structure at the between- and within-person level, its invariance across different ESM protocols, and its reliability. Participants (N = 147) were randomly assigned to receive either a 30 or 60 item questionnaire three, six, or nine times per day, resulting in 72–75 participants per questionnaire length and 48–50 participants per sampling frequency. Momentary affect was assessed with 8 or 18 items. At both levels, a structure with two correlated factors showed the best fit compared to an orthogonal and a unidimensional model. A structure with additional freed residual correlations was invariant across protocols at the within-person level and showed high reliability. We observed indications of a more discrete affective structure within than between persons.
Original language | English |
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Article number | 104094 |
Number of pages | 11 |
Journal | Journal of Research in Personality |
Volume | 92 |
DOIs | |
Publication status | Published - 1 Jun 2021 |
Keywords
- Mood
- Positive and negative affect
- Ecological momentary assessment
- Measurement invariance
- Structural validity
- DAILY-LIFE
- NEGATIVE AFFECT
- FIT INDEXES
- CORE AFFECT
- DEPRESSION
- SENSITIVITY
- EMOTIONS
- MODEL
- STATE
- MOOD