Effect of Muhadatsah Usbu'Iyyah Activities on Mufrodat Mastery at An-Nur Islamic Boarding School Sidoarjo

An-Nur Sidoarjo boarding school has various strategies in the application of Arabic. The data analysis method used hypothesis testing and correlationthe results showed that first, the results of simple linear regression hypothesis testing using a statistical program. The conclusion is obtained from the significant value of 0.035 <0.05, meaning that Ho is rejected and Ha is accepted, So it can be concluded that Muhadatsah Usbuiyyah activities have an effect on Mufrodat mastery at An-Nur Sidoarjo Islamic Boarding School and secondly, the results of the calculation of the correlation test carried out with the SPSS 26.0 for windows statistical program get r square 0.094 or 9.4% which means that Muhadatsah Usbuiyyah activities have an influence on Mufrodat Mastery at An-Nur Sidoarjo Islamic Boarding School with a large influence of 9.4%. That can be concludes there is a significant influence between the variable weekly Arabic conversation activities on the Mufrodat Mastery variable.