Reanalyses of 7 studies of self-reported mood by researchers such as M. A. Lebo and J. R. Nesselroade (see record 1979-30118-001) and J. A. Russell and D. Ridgeway (see record 1984-03807-001) indicate that Positive Affect and Negative Affect consistently emerge as the 1st 2 varimax rotated dimensions in orthogonal factor analyses or as the 1st 2 2nd-order factors derived from oblique solutions. The 2 factors emerged with varying sets of descriptors and were even replicated in several data sets characterized by possible methodological problems (e.g., acquiescence response bias, inappropriate response formats) noted by earlier authors. The results thus attest to the stability and robustness of Positive and Negative Affect in self-report. Because this same 2-dimensional configuration has also been consistently identified in most other major lines of mood research, it is now firmly established as the basic structure of English-language affect at the general factor level.
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