Validity and Reliability Study on The Development of Data Literacy Scale for Educators

Abstract

The purpose of this study is to develop a valid and reliable Likert-type scale that can be used to measure the data literacy skills of educators. In the development process of the scale, after reviewing the relevant literature, a pool of 130 items was designed and presented to the experts for their view. After the evaluation of experts, the content validity rate and content validity indexes of the items were calculated by using the Lawshe method, and 39 items were formed. The draft scale of 39 items was applied to 820 teachers and administrators working in public schools in the 2021-2022 academic year. In order to determine the construct validity of the scale, principal component analysis and factor analysis were performed. As a result of these analyses, a scale consisting of 3 factors and a total of 30 items was developed. For reliability, Cronbach α (.953) a coefficient was calculated for the overall dimensions of the scale and varimax rotation. The results show that the scale is valid and reliable.