FINDINGS
Validity
For analyzing construct validity of DCS, exploratory factor analysis was used. Stevens(1996) explained “the
purpose of exploratory factor analysis is to identify the factor structure or model for a set of variables.”.
According to this purpose, first, Kaiser-Mayer-Olkin (KMO) coefficient and Bartlett sphericity test were used
for analyzing suitability of the data for factor analysis by exploratory factor analysis (EFA). KMO coefficient
gives the information about the suitability of the the data matrix for the factor analysis, the suitability of the data
structure for factor extraction and this coefficient is expected to be higher than .60 (Büyüköztürk, 2007). In the
analysis the KMO value for the DCS was found .75. Also the Bartlett test determines the relationship between
the variables on the basis of partial correlations, and the calculated chi-square statistic is expected to be
significant (Büyüköztürk, 2007). The calculated chi square statistic was χ2 = 3336, 213, p. =.000 in the Bartlett
sphericity test. KMO coefficient and Bartlett sphericity test indicate that the collected data are suitable for the
factor analysis
FINDINGSValidityFor analyzing construct validity of DCS, exploratory factor analysis was used. Stevens(1996) explained “thepurpose of exploratory factor analysis is to identify the factor structure or model for a set of variables.”.According to this purpose, first, Kaiser-Mayer-Olkin (KMO) coefficient and Bartlett sphericity test were usedfor analyzing suitability of the data for factor analysis by exploratory factor analysis (EFA). KMO coefficientgives the information about the suitability of the the data matrix for the factor analysis, the suitability of the datastructure for factor extraction and this coefficient is expected to be higher than .60 (Büyüköztürk, 2007). In theanalysis the KMO value for the DCS was found .75. Also the Bartlett test determines the relationship betweenthe variables on the basis of partial correlations, and the calculated chi-square statistic is expected to besignificant (Büyüköztürk, 2007). The calculated chi square statistic was χ2 = 3336, 213, p. =.000 in the Bartlettsphericity test. KMO coefficient and Bartlett sphericity test indicate that the collected data are suitable for thefactor analysis
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