Validity and Reliability Analysis for the Teacher Determination for Democratic Behavior Scale

Abstract

The main aim of this study is to develop a scale to assess the extent to which teachers display democratic behaviors they are supposed to display in in-classroom teaching practices and the level of their determination in displaying such behaviors. The study group of this survey is composed of 446 second grade high school students, 243 girls and 203 boys. Survey data had been gathered through the evaluation of branch/guidance teachers by their students within the framework of the scale data that are formed by literature survey and harnessing some means of scaling employed in several research studies. Validity and reliability analysis were made upon such data through SPSS 11.00. For validity, KMO value and Bartlett test values are calculated on the gathered data. Afterwards, factor analysis of the data was made and item-total correlations and power of differentiation (t test) are determined. For the reliability analysis, levels of internal consistency and ability to perform decisive measurements were computed. At the end of analysis, KMO value of scale is measured as 0,936 and Bartlett test value is p < 0,001. Items in the scale were collected under a single factor. Item-test correlations and discrimination power of items in the scale are significant. The Cronbach's alpha reliability coefficient of the scale was found to be 0.98. The scale has proven to perform decisive measurements as significant relationships are found for each item when the relationship among evaluations by 139 students is analyzed. In conclusion, it can be concluded that the "Scale for Democratic Teacher' Behavior Determination" is a valid and reliable scale.