Al-Hikmah University Journal

This article examined the principals’ interpersonal relations skill and administrative effectiveness in Educational District V of Lagos State and to delineate those facts that facilitate and contribute to administrative effectiveness in secondary schools in Lagos State, Nigeria.  A self-structure research instrument titled “Principals’ Interpersonal Relation Skills and Administrative Effectiveness in Public Senior Secondary Schools” (PIRSAEPSS).The instrument was validated through face and content validity and made reliable through a test-retest reliability method and the coefficient was 0.76. A total of 1000 respondents were employed in the study and the questionnaires administered while 979 respondents returned their questionnaire and on that premise the data was analysed throughPearson Product Moment correlation statistical tools using SPSS version 20 to test the hypothesis, the findings showed that, there is a significant relationship between principals’ human relations skill and administrative effectiveness (r = 0.452, p<0.05). Based on the findings, the study recommended that principals should be adequately trained and enlightened with more robust supervision strategies through seminars and conferences which may include classroom observation, analysis/strategy, post-observation conference and post conference analysis and adequate human relation skills for administrative effectiveness in in Public senior secondary schools in Lagos State.