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Abstract


THE SCALE OF PERCEPTION OF SCHOOL'S PHYSICAL ENVIRONMENT: VALIDITY AND RELIABILITY STUDY OF SCALE DEVELOPMENT
In this study, it is aimed to develop a valid and reliable measurement tool to reveal the level of perception of high school students on their schools’physical characteristics. The experimental form developed for this purpose was sent to the experts and their investigations were requested. Necessary arrangements were made in the form in accordance with the feedback from the experts. The 27-item trial form was applied to 560 high school students. Data obtained at the end of the application were analyzed. With exploratory Factor Analysis (AFA), a three dimensional structure consisting of of 22 items with the dimensions of “physical needs”, “security needs” and “psychological needs” was formed. In the analyzes, the relationship between the sub-dimensions of the scale was examined. As a result of the analyzes, it was seen that the factors showed a significant and positive relationship with each other. It was concluded, with the Confirmatory Factor Analysis (CFA) results that the sub-dimensions were the components of a basic structure called the hierarchy of needs and they constituted a superstructure together. The model's internal consistency indexes are acceptable enough. Confirmatory Factor Analysis (CFA) results also confirmed the results of Exploratory Factor Analysis (AFA). The internal consistency coefficient obtained for the whole scale was determined as .933. Cronbach's Alpha reliability coefficients were found to be .945 for the sub-dimension of physical needs, .642 for the sub-dimension of security needs and .756 for the sub-dimension of psychological needs. According to the findings, the internal consistency coefficients of the factors were found to be sufficient and due to the high internal consistency coefficient of the whole, a valid and reliable scale was established to make consistent measurements on the level of perception of high school students on their schools’physical characteristics.

Keywords
Perception of School’s Physical Environment, scale development, reliability, validity, factor analys


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