Tujuan penelitian ini adalah untuk membandingkan akurasi hasil penskalaan instrumen kompetensi kepribadian guru pada tipe thrustone menggunakan metode interval tampak setara dan interval sukesif. Pendekatan pada penelitian ini menggunakan kuantitaif deskriptif. Subjek penelitian yaitu 62 guru di Kabupaten Tasikmalaya dengan karakteristik tingkat mengajar yang berbeda. Instrumen pengukur Kompetensi kepribadian guru diadaptasi dari artikel sebelumnya yang telah diuji validitas dan reliabiltasnya. Teknik analisis data yang digunakan yaitu menentukan Nilai S dan Q pada skala thrustone, kemudia diuji reliabilitas baru menggunakan persamaan KR 20 dan standar kesalahan pengukuran menggunakan teori tes klasik. Hasil analisis skala thrustone menggunakan nilai S dan Q menunjukkan bahwa terdapat 10 butir pernyataan yang dibuang dan terjadi perubahan urutan butir pada metode interval tampak setara dan interval sukesif. Hasil uji reliabilitas baru untuk metode interval tampak setara didapatkan nilai estimasi koefisien sebesar 0,83 dengan standar kesalahan pengukuran sebesar 1,49, sedangkan reliabilitas untuk interval sukesif sebesar 0,83 dengan standar kesalahan pengukuran sebesar 2,57. Hasil-hasil analisis pada setiap langkah menunjukkan bahwa skor hasil penskalaan pada metode interval tampak setara akan berbeda dengan metode interval berurutan.Kata Kunci: Penskalaan, thrustone, kompetensi kepribadian guru Comparison of the Thurstone Scale method in measuring teacher personality competence Abstract: The purpose of this study was to compare the accuracy of the results of scaling the teacher's personality competency instrument on the Thurstone type using the seemingly equivalent and successive interval methods. The approach in this study uses descriptive quantitative. The research subjects were 62 teachers in Tasikmalaya Regency with different teaching level characteristics. The instrument for measuring teacher personality competence was adapted from the previous article, which had been tested for validity and reliability. The data analysis technique used was to determine the S and Q values on the Thurstone scale, then tested the new reliability using the KR 20 equation and the standard error of measurement using the classical test theory. The results of the Thurstone scale analysis using the values of S and Q indicate that there are ten items of statements that are discarded, and there is a change in the order of the items in the interval method that looks equal and successive intervals. The results of the new reliability test for the interval method seem equivalent. The estimated coefficient value is 0.83 with a standard error of measurement of 1.49, while the reliability for successive intervals is 0.83 with a standard error of measurement of 2.57. The results of the analysis at each step show that the score of the results of the scaling on the interval method looks equal will be different from the sequential interval method.

The study aimed to find an instrument for measuring the mathematical disposition of junior high school students in Indonesia. The research type was research and development, which is used to develop instruments of students' mathematical disposition. Data were collected from 384 respondents, who filled out a questionnaire with a total of 7 indicators and 25 statement items. 384 responses were divided into two criteria, stage 1 and stage 2, with each test having 197 respondents. Stage 1 analysis used the Exploratory Factor Analysis (EFA) approach, while stage 2 used the Confirmatory Factor Analysis (CFA) approach. Stage 1 obtained validation of 23 items with a loading factor of more than 0.4, consisting of 1 invalid item and 1 item was not meet expectations. The results of the CFA analysis have proven that 23 items were valid with a loading factor of more than 0.4. The reliability coefficient was 0.59, with an SEM value of 3.98. In sum, this instrument has 23 statements that have fulfilled the validity and reliability of the instrument and were feasible to use.