<![CDATA[This study was to determine the effect of Principal Supervision and Work Motivation on Teacher Performance. The object of the study were all teachers with Civil Servant status who served in public elementary schools in the UPT Education Office, Mandalawangi District, Pandeglang Regency, totaling 258 people. The sample size was determined using the Slovin formula with an error rate of 5% so that a total sample of 156.8 was obtained by rounding off to 157 of the total population. While the sampling technique using random sampling. The results of data processing with the help of SPSS ver 17, the results of KD scores on Principal Supervision (X1) affect Teacher Performance (Y) by 33.76%. While the remaining 64.12% is influenced by other factors. Meanwhile, the work motivation variable (X2) affects teacher performance (Y) by 40.20%. While the remaining 59.80% is influenced by other factors. The coefficient of determination (R2) obtained a value of 0.128 which means that teacher performance can be influenced by the supervision of the principal and work motivation by 12.8%, while the remaining 87.2% is explained by other variables outside the research. The results of calculations with the t test, obtained a calculated t value of 2,899 while the ttable value with df 5% and dk n- -1 = 157-2-1 = 154 is 1.975288. The results of the calculations show that the value of tcount (2,899) > t table, then Ha or Ho is accepted, meaning that partially there is no significant effect between variable X1 (Supervision of Principals) on Variable Y (Teacher Performance). From the probability value of 0.04 <0.05 which means that partially X1 (Principal Supervision) has no effect on Y (Teacher Performance). Meanwhile, from the results of the F test, an F count of 11,302 was obtained. While the ftable with a significance level of 5% is obtained by the degree of numerator k = 2 and df = n-k-1 = 157-2-1 = 154, then the ftable value is 3.0548. The results of Fcount (11.302) > Ftable (3.0548), thus Ha is accepted and Ho is rejected. So thus that variable X1 (Supervision of Principals) and Variable X2 (Work Motivation) are jointly significant to Variable Y (Teacher Performance).]]>
