Factor analyse which is a method several dimension that based on among the relations of many variables, more meaningful of variables, apparent and providing interpret as summary (Buyukozturk 2006, 43, Albayrak 2006, 68).
Confirmatory
factor analyses (CFA) were then conducted on the second subsample (n = 660) to investigate whether the structure found with the first subsample was sound.
Nevertheless, if we wish to determine which variables are the most similar or different using the results of the derived principle factors of Varimax technique, it is worth using cluster analysis approach to define similarities and differences among obtained variables more directly by determining the multi-dimensional distances between various groups of variables and then selecting those groups of variables within which the distances are relatively small [11] Since the implantation of
factor analyses helped in reducing the dimensions and minimizing multicollinearity effect in our data, it made it easier to run the cluster analyses.
Descriptive statistics, exploratory and confirmatory
factor analyses were used for reliability and validity evaluations.
Confirmatory
factor analyses were run for a one-factor model, a two-factor model, and both a one- and two-factor model with correlated errors between items 1 and 2 of the CTDS.
Although the DAS has been widely accepted as a measure of dysfunctional schemas, exploratory
factor analyses (EFA) have yielded mixed results with regard to the number of factors extracted, with most of the studies showing between two-factor and four-factor solutions (e.g., Cane, Olinger, Gotlib, & Kuiper, 1986; Chioqueta & Stiles, 2006; Power et al., 1994; Sanz & Vazquez, 1993).
Both exploratory
factor analyses (EFA) and confirmatory
factor analyses (CFA) were conducted in this study to clarify and confirm the structure of teachers' Internet self-efficacy and the structure of their information commitments.
The next two articles in this special issue investigate the participants' perceptions and attitudes toward STEM education using
factor analyses. The second article by Jon D.
college students' life experiences are patterned differently using exploratory and confirmatory
factor analyses, multiple regression analyses, and group-level comparisons.