SPSS 17.0 IBM was used to perform the data analysis. The internal consistency and homogeneity of the PCSCCS-M were assessed using Cronbach’s alpha. The concurrent validity between the PCSCCS-M and the C-SCGS was assessed by Pearson’s correlation coefficient. Item analysis was performed using the following analyses: (a) extreme group comparison (item discrimination, an item should be able to discriminate between the upper 27% and lower 27% scoring groups) [32 (link)]; (b) corrected item-total correlations; (c) factor loadings; (d) Cronbach’s alpha if an item was deleted; (e) and communities. Items with a criterial value (CR) < 3.0, a corrected item-total correlation < 0.30, factor loading < 0.45, and a community < 0.20 and whose deletion caused an increase of 0.5 or more in the alpha coefficient for the overall scale were excluded.
The construct validity of the PCSCCS-M was analyzed by EFA. Prior to the EFA, the Kaiser-Meyer-Olkin (KMO) test and Bartlett’s spherical test were performed. The criterion for factor extraction was an eigenvalue > 1.0 and a factor loading > 0.40.
CFA was conducted using AMOS, version 20.0, to further evaluate the validity of the PCSCCS-M.
The construct validity of the PCSCCS-M was analyzed by EFA. Prior to the EFA, the Kaiser-Meyer-Olkin (KMO) test and Bartlett’s spherical test were performed. The criterion for factor extraction was an eigenvalue > 1.0 and a factor loading > 0.40.
CFA was conducted using AMOS, version 20.0, to further evaluate the validity of the PCSCCS-M.