THE ADAPTATION OF FROSTIG VISUAL PERCEPTION TEST TO TURKISH
In this study, the adaptation of Frostig Visual Perception Test to Turkish children of four-seven years old and the assessement of the psychometric properties of the Turkish form of the test is aimed. The data is obtained from 1382 children. The validity of Frostig Visual Perception Test is assessed in terms of construct validty, initially. In regards of this aim expert opinions are provided, confirmatory factor analysis and Goodness of Fit Index is analyzed. In order to provide proof to the construct validty of the test, the visual perception of the children according to their ages is examined. In addition, the correlations between the subtests and the differences between the top and the bottom 27% groups is analyzed. The results of the validity analysis indicated that the experts opinions support the construct validity of the test. It also found that the factor loads of the items are relatively high, the visual perceptions of the children increase by age and the statistical differences between the the top and the bottom 27% groups are significant. The internal consistancy of Frostig Visual Perception Test is assessed by Kuder Richardson 20 coefficient. The test-retest correlation is analyzed in order to assess the consistency of the data over time. The results showed that KR 20 and test-retest coefficients are statistically significant. The findings indicated that the Turkish form of Frostig Visual Perception Test is a realiable and valid measure.
Frostig Visual Perception Test, Visual Perception, Validity, Reliability