Reliability and validity of the Statistical Anxiety Scale among students in Singapore and Australia

Given the negative relationships between statistics anxiety and statistics achievement, it is important for researchers and instructors to have a reliable and valid measure to identify students with statistics anxiety. The purpose of the current study was to examine the psychometric properties of Vigil-Colet, Lorenzo-Seva, and Condon's (2008) Statistical Anxiety Scale (SAS) among students in Singapore and Australia. Unlike the commonly used Statistical Anxiety Rating Scale, the SAS provides a specific measure of statistics anxiety. Participants were 197 undergraduates (79.2% female) in the James Cook University Psychology programs at the Singaporean (70.1%) and Australian (29.9 %) campuses. Acceptable internal consistency reliabilities, ranging from 0.88 to 0.95 for the three factors of the SAS, were found in the current study. Confirmatory factor analysis suggested that a modified three-factor model best describe the data. Scores on the SAS shared positive correlations with another measure of statistics anxiety, and negative correlations with a measure of attitudes toward statistics. The results provided support for the use of the SAS among Singaporean and Australian psychology undergraduates.