本研究旨在建構國中小校長專業發展指標，並將建構的指標轉化為問卷進行抽樣調查，以驗證分析指標具有良好之信、效度。本研究共分三階段進行：首先，整理校長專業發展理論及國內外10個模式文獻等，以形成指標初稿；其次，邀請8位專家進行焦點座談以修正指標，以及編製指標問卷草案並邀請9位專家建構內容效度；再進行預試與正式問卷施測，以分析考驗本指標。研究結果顯示， 本研究之「國中小校長專業發展指標調查問卷」具有良好的信度與效度。最後，根據研究結果對教育單位與國中小校長提出具體建議。 The aim of this study was to construct professional development indicators for the principals of elementary and junior high schools and then test in the validity and reliability through a questionnaire. The process consisted of three stages. At first, the researcher reviewed a wide range of literature related to professional development to compile a list of ten patterns associated with the professional development of principals. Second, eight experts were assembled for a focus group to examine the indicators. Nine other experts evaluated the questionnaire for content validity before drafting a preliminary version of the questionnaire. Finally, the revised version was trial-tested and revised as the final version to test the indicators. The proposed questionnaire was found to have acceptable reliability and validity. A number of practical recommendations were made for administrators and principals of elementary and junior high schools.