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A test-retest analysis of the Vanderbilt Assessment for Leadership in Education in the USA

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Abstract

The Vanderbilt Assessment for Leadership in Education (VAL-ED) is a 360-degree learning-centered behaviors principal evaluation tool that includes ratings from the principal, supervisors, and teachers. The current study assesses the test-retest reliability of the VAL-ED for a sample of seven school districts as part of multiple validity and reliability assessments based on various samples of real users of the VAL-ED. We administered the VAL-ED twice and examined the correlations and mean differences between time 1 and time 2. We find that the principal and teacher ratings from time 1 and time 2 have large, positive, and significant correlations. Additionally, for both time points, principals are rated as being at least satisfactorily effective. Principals rate themselves slightly higher at time 2, while teachers rate principals slightly higher at time 1.

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Notes

  1. The total principal effectiveness ratings for time 1 for those principals who completed the time 2 rating (3.66) were higher compared to those who did not complete the time 2 assessment (3.52), but the differences are not significant.

  2. In the discussion of the magnitude of correlations, we use the rules of thumb from Cohen (1988) [see Fan (2001) for an application] where a r 2 of 0.02 is a small correlation, r 2 of 0.12 is a medium correlation, and r 2 of 0.25 is a large correlation.

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Acknowledgements

The research reported here was supported by the Institute of Education Sciences, US Department of Education through grant numbers R305A0803070, R305B100013-01, and R305E100008 of the US Department of Education. Please direct all correspondence to Elizabeth Covay Minor (eminor1@nl.edu).

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Correspondence to Elizabeth Covay Minor.

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The authors declare a potential conflict of interest (e.g., a financial relationship with the commercial organizations or products discussed in this article) as follows: The Vanderbilt Assessment of Leadership in Education (VAL-ED) instrument is authored by Drs. Porter, Murphy, Goldring, and Elliott and copyrighted by Vanderbilt University, all of whom receive a royalty from its sales by Discovery Education Assessment. The VAL-ED authors and their research partners have made every effort to be objective and data based in statements about the instrument and value the independent peer review process of their research. With any publication, readers should judge the facts and related materials for themselves.

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Minor, E.C., Porter, A.C., Murphy, J. et al. A test-retest analysis of the Vanderbilt Assessment for Leadership in Education in the USA. Educ Asse Eval Acc 29, 211–224 (2017). https://doi.org/10.1007/s11092-016-9254-9

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  • DOI: https://doi.org/10.1007/s11092-016-9254-9

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