Özet:

The aim of this research is to develop a valid and reliable scale to determine teachers' lateral thinking self-evaluation levels. For this purpose, the Six Hats Thinking Technique organized by De Bono (1986) and other thinking styles in the literature were reviwed and a 42-item draft scale was created and data was collected from the teachers. The study group of the research consists of 348 teachers working in public preschool institutions, primary schools, secondary schools and high schools in the 2019-2020 fall semester in schools on the European side of Istanbul. The data were collected by convenience sampling technique. EFA and CFA analysis were performed for the data obtained, and it was determined that 48.34% of the total variance of the scale, consisting of 6 dimensions and 20 items, was explained. The internal consistency coefficient of the scale was .710, .734 in the first factor, .688 in the second factor, .695 in the third factor, .703 in the fourth factor, .680 in the fifth factor and .698 in the sixth factor. According to EFA analysis, item loads are between .531 and .806. It was determined that the data were normally distributed in total and in all factors. According to the results of the CFA analysis, the fit indices of my scale are acceptable and at a good fit level. Based on these results, a valid and reliable scale was developed.

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