🏮🏮🏮EFA in SPSS series: (1) PC extraction, (2) ML extraction, (3) orthogonal rotation, (4) oblique rotation
Many of the great experimental or “cognitive” psychologists in the history of psychology have also been psychometricians and vice versa, and it often seems almost arbitrary to identify a given individual as one or the other. (Steinberg, 1984, p. 40).
Steinberg, R. J. (1984). What cognitive psychology can (and cannot) do for test development. In B. S. Plake (Ed.), Social and technical issues in testing: Implications for test construction and usage. Hillsdale, NJ: Lawrence Erlbaum Associates.
Jiahui Zhang 