Development of a Perception Scale of Private Lesson: A Validity and Reliability Study

The purpose of the research is to develop a valid and reliable perception scale that can measure math teachers (198) science (120) towards private lesson. In validity studies, exploratory factor analysis was made with SPSS 25.0 package program after confirmatory Lisrel 8.71 software. To scale; 1. Creation Item Pool 2. Obtaining Expert Opinion, 3. Pre-Trial Form 4. Factor Analysis 5. Confirmatory analysis. According analysis; Kaiser Meyer Olkin (KMO) rate; .780; Bartlett test result: 7466.539; Cronbach alpha reliability coefficient is: .901. analysis: Root Mean Square Error Approximation (RMSEA) 0.043 (.05); p-Value for Test Close Fit .00 (.05, Goodness Index (GFI) .96, Adjusted (AGFI) .93; Normed (NFI) .97; Relative (RFI) .96; Incremental Fix (IFI): .99; Degrees Freedom: 38; Residual (RMR): .037 NonNormed (NNFI): .98. findings, so it be used determine teachers’ positive negative perceptions