Table 2.

Methods for Factor Analyzing the BSCS.

Study	Method (specifications)
Ferrari et al. (2009)	EFA (ML estimation; orthogonal varimax rotation)
De Ridder et al. (2011)	CFA (estimator not specified)
Maloney et al. (2012)	EFA (estimator not specified; oblique direct oblimin rotation) → CFA (ML estimation)
Morean et al. (2014)	CFA (robust ML estimation) → EFA (robust ML estimation; oblique varimax rotation)
Current study	EFA (OLS estimation; direct quartimin rotation) → CFA (DWLS/WLSMV estimation)

Note. BSCS = Brief Self-Control Scale; EFA = exploratory factor analysis; CFA = confirmatory factor analysis; ML = maximum likelihood; OLS = ordinary least squares; DWLS = diagonally weighted least squares; WLSMV = weighted least squares mean and variance adjusted. Items were dropped from De Ridder et al. (2011), Maloney et al. (2012), and Morean et al. (2014).