The Measurement Instrument for Transformational Leadership of Secondary School Administrator for Scale

Abstract

The objectives of this research were 1) to analyze the indicators for transformational leadership of secondary school administrators and 2) to develop the measuring instrument for transformational leadership of secondary school administrators. The research was comprised of steps as follows; firstly to determine the relevant variables for transformational leadership of secondary school administrators, secondly to determine indicators for transformational leadership of secondary school administrators, and thirdly to develop the measuring instrument quality for transformational leadership of secondary school administrators. The sample of this research consisted of 331 secondary schools in Thailand. The respondents were in the total of 662 persons which included one school administrator and one teacher of each school. The instruments used for data collection were document analysis form, semistructured interview form, and opinionnaire. The statistic used for data analysis were frequency, percentage, arithmetic mean, standard deviation, and Exploratory Factor Analysis. The assessment of measuring instrument in validity, reliability, discrimination, and objective was carried out by the experts, administrators, and teachers. The findings of this research were as follows: 1) The indicators for transformational leadership of secondary school administrators were comprised of 8 dimensions namely; (1) idealized influence, with 10 observed variables, (2) subordinate development, with 10 observed variables, (3) visionary, with 5 observed variables, 4) achievement motivation, with 4 observed variables, (5) information and technology leadership, with 5 observed variables, (6) remuneration management, with 5 observed variables, (7) personal mastery, with 4 observed variables, and 8) inspiration, with 5 observed variables respectively. 2) a measurement instrument for transformational. Leadership of Secondary school administrators had a content validity ranging from 0.6 to 1.0, a reliability value of .985 , a discrimination of .200 to..600 and it was objectivity.