This research aims to study (1) the meaning of the score during the high school years of mathematics, 3 (2) of the score between the mathematics school year 3 by scoring format between the four sectors, and (3) the precision of the disruption.The score between the mathematics school year 3 student population, the school year teachers teach mathematics and 3 semester 2 academic year the school affiliated with the Office of the 2557 (2014) expansion zone education elementary school with 3 number of 61 districts in Chiang Mai for our.In 1942, pls team tea, for example, is the number of teachers and students, the number 522 24 people have come by way of the multiple steps. Tools contains 1) survey, scoring between a sector 2) save the score between the sector and 3) measure mathematics achievement statistics used in the data analysis is the Pearson's correlation coefficient and the coefficient a summary reference (G-Coefficient) Study results showed that (1) the score between the teacher's Math Department is relatively low (between sector score correlation with test scores measure student achievement equivalent to 0.20), (2) model rating between regions 2 format (10:15:30:15) is the most direct and (3) the score between the Department of mathematics teachers 3 formats (0:60:0: 10) has the most poise, with complex coefficients a summary reference absolute equal to 0.14 decision considering the list of sectors between points. It was found that the rate of mental radar of teachers have the highest variance, which reflects that it is a source of bias in highest measure.
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