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Reliability And Validity Of An Evaluation Capacity Assessment Instrument For Principals Of Public Schools In Michigan And The Current Distribution Of Evaluation Capacity By Poverty Concentration, Christine M. Lewis
Wayne State University Dissertations
This study used Confirmatory Factor Analysis (CFA) to investigate the reliability and validity of an Evaluation Capacity Assessment Instrument (ECAI) for principals of K-12 public schools in Michigan. The ECAI was then used to investigate whether scores between principals of high poverty schools and low poverty schools were significantly different. The ECAI was administered to 121 principals across Michigan. Based on the results of the CFA, evidence of fit to the a priori model was not established but internal consistency statistics provide some reliability evidence. A Principle Components Analysis (PCA) was conducted and factor loadings were examined. Some groups of …
A Comparative Study Of Kendall-Theil Sen, Siegel Vs Quantile Regression With Outliers, Ahmad Farooqi
A Comparative Study Of Kendall-Theil Sen, Siegel Vs Quantile Regression With Outliers, Ahmad Farooqi
Wayne State University Dissertations
Researchers in social and behavioral sciences usually interested in study the relationship between a response variable Y_i and one or more independent predictors〖 X〗_i either for the purpose of explanation or prediction. Ordinary Least Square Regression is a parametric approach used to study this kind of relationship. One of the disadvantages of Ordinary Least Square is it does not fit well in the presence of outliers in the response variable Y_i or both in the response variable Y_i and the predictor variable〖 X〗_i, also if the data were sampled from a non-normal distribution. Quantile Regression, Theil-Sen regression, and the modified …