# PENGARUH KEBIJAKAN TRY OUT TERHADAP PRESTASI SISWA DALAM MATA PELAJARAN KIMIA KELAS XII IPA DI SEKOLAH MENENGAH ATAS NEGERI 1 TALIBURA

### Abstract

*This research is motivated by the value of a try out as well as results of national examinations chemical is a unity that can not be separated from one another. The purpose of this study was to Knowing whether there is influence policy Try Out to the National Examination students in chemistry class XII Science at SMA Negeri 1 Talibura and sample used was all grades try out and a national exam students for 3 (three) years Lessons .*

*Methods of data collection using the documentation to try out the study as independent variables and the national exam as the dependent variable. Test the validity of the instrument using the formula Spearman Brown and reliability using Cronbach Alpha formula of, and qualify a valid and reliable. Hypothesis testing using the formula of normality, linearity, simple linear regression, F test and t test.*

*Results obtained probability value of 0,016 ≤ 0.05, and the analytical results wherein the constant significance 0.000 <0.05 and significance Try out 0,033 <0.05 so that it can be concluded that the variables significantly correlated tryouts to variable national exam. Assessment of the effect Try Out the learning outcomes obtained chemically T arithmetic Try out constant 6.351 and 2.167 greater than T - Table (1.9853) then H0 and H1 accepted. While the F-count value = 5.892 <F-table, then H0 and H1 accepted. Try Out capability variables in explaining the variance of the National Examination variable was 4.7% (R-Square) so that we can conclude the effect of variable to variable Try Out National Examination is very small.*