1) The document discusses a study analyzing the effect of principal supervision knowledge and interpersonal communication on principal accountability in junior high schools in Jambi Province, Indonesia.
2) The study found that principal supervision knowledge and interpersonal communication both had a positive and significant impact on principal accountability.
3) Specifically, the study found that principal supervision knowledge and interpersonal communication each positively influenced principal accountability, and that taken together they had a significant combined effect on principal accountability.