An Explanation of Statistical Tools from DocumentingExcellence.com A consulting practice focusing on working with colleges', organizations', and individuals' utilization of quantitative and qualitative assessment tools to analyze and document their quality outcomes through providing staff development, research design and analysis, and psychometric evaluations.
Statistical Tools TOC Conceptual Issues Measurment Issues Conceptual focus Measurement Focus Effectivenes Evaluating - Single variable Descriptive statistics Validity, Reliabiltiy, Cause & Effect Sound Reasoning Cause and Effect Reporting Modeling Correlation Regression & Correlation Statistical Control Unemployment & Crime Model Reduction Outcomes Assessment FAQ Consulting Services

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Reporting Assessment Findings

Assessment of tools results in reports of statistical analysis of the characteristics of that measurement tool. 

	All of these findings will help a developer or author build a better tool.
	Some of them may be of interest to a user trying to select a tool for application.

Developers and users are be interested in both questions of reliability and validity.

A report for a developer  focuses on both reliability of the instrument and its items.	A report for a user (the public) focuses on: definition of a tool, its focus, reliability of the overall scales and instrument (but not item analysis) , validation and predictability
A report for a developer focuses on evaluating validity and predictability

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Copyright © 2012 by Peter T. Klassen, Ph.D. Principal, www.DocumentingExcellence.com
2 March, 2012