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The instrument was piloted in the 2006-2007 academic year. The Educational Focus Group (Cannizzaro, 2007) provided feedback on the instrument and confirmed its content validity. To address inter-rater reliability, sets of two raters used the instrument and discussed the outcomes. The four teams of practitioners rated the PIMA similarly (Cannizzaro, 2007). Koonce and Causey (2011) found consistency of variance within the PIMA and its constituent items. For each standard the constituent items correlate robustly with the standard overall. Pearson’s r values ranged between .779 and .980. All findings fell within the .01 level of significance.
Upon establishing the validity and reliability of the PIMA, the USA and ISA assessments were subsequently designed using the PIMA as a model. Other than the title and lead in information, the assessments are identical with the same Likert-type ratings.
Fifty-four (54) educational leadership internship completers were studied in this research from one university Educational Leadership Preparation Program in southeast Virginia. The participants were uncompensated and were not interviewed, tested or surveyed beyond the normal program requirements. All were licensed and experienced educators (minimum three years teaching experience) prior to participating in the internship. The participant group makes up a purposeful sample consisting of all students that completed the internship between September 2009 and May 2011.
Data were collected online via Survey Monkey through the mentoring principals’ completion of the Principal Internship Mentor’s Assessment (PIMA), the university supervisor completing the University Supervisor’s Assessment (USA), and the intern completing the Intern Self-Assessment (ISA) for each semester and each student completing an internship (Figure 1). Data were then organized into an Excel spreadsheet entered into the Statistical Package for the Social Sciences (SPSS).
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