Factor Structure of Slovak Adaptation of Attentional Control Scale

The Attentional Control Scale (ACS) is a tool developed to assess the ability to voluntarily control attentional resources. The current aim was to verify the factor structure of the scale and its hypothesized inverse relationship with measures of trait anxiety on Slovak sample. The Principal Component Analysis (PCA) suggested two correlated factors resembling the hypothesized Focusing and Shifting subscales. The factorial solution suggested by the PCA had the best fit against one-factorial and two-factorial orthogonal solutions in the Confirmatory Factor Analysis (CFA) conducted on an independent sample. The entire scale had good internal consistency (omega(t) = .85). The Focusing (omega(t) = .81, alpha(ord) = .81) and Shifting (omega(t) = .67, alpha(ord) = .66) subscales reached acceptable to good values of internal consistency. The ACS showed a negative relationship with trait anxiety inventory and behavioral inhibition scale. The differences of our results compared to other studies investigating factor structure of ACS are discussed, together with limitations of the current study, validity and applicability of the scale.