ABSTRACT
This research aims to develop assessment instruments which are feasible for assessing communication skills of vocational school students. The criteria of the instruments feasibility consists of validity, reliability, readability, effectiveness and practicality. The data collection techniques include focus group discussions and questionnaires. Descriptive data analysis technique was employed to reveal the quality of an instrument in terms of its practicality, readability, and effectiveness. Moreover, the content validity was applied using Aiken V formula to know the validity of the instruments. In addition, the reliability was tested using Cronbach’s Alpha coefficient. The assessment instruments for assessing the communication skills which have been developed must accomodate the noble characters such as politeness and tolerance as indicators.
