CAVEWAS Webinar – Vocational Evaluation Statistics and Terminology Course


When:  April 27, 2016

Start time: 12:30 pm EST.

End time: 2:00 pm EST

Presenter:  Shelley Smilek

CVRP Approval Number: CAVEWAS(web)-VESTC-27Apr16 1.50 Domain. 04

This 1.5 hour webinar will cover some of the important technical details that assessors should be familiar with when conducting vocational evaluations.  Various measurement scales will be reviewed and the importance of understanding what mathematical operations can be applied to numerical data will be discussed.  We will review the types of tests that are used for vocational assessments as well as the principles of testing.  Specific information about the norms for some of the most popular assessments used in the field of vocational evaluation (i.e. WRAT-4, TONI-4, WPT, CWPI, GATB, etc.) will be reviewed.  The various types of commonly reported scores will be explained, with attention given to how test scores relate to vocational potential.  Finally, we will discuss the importance of understanding the standard error of measurement and standard error of difference for given tests and how they impact the interpretation of test results.  As much as possible this session will provide assessors with direct references to where all of this technical data can be found in the examiner manuals for the tests discussed.



1. Statistics and Measurements

2. Why do we need statistics?

-What is measurement?

-Why is it important to understand levels of measurement?

3. Types of Tests






3. Principles of Testing



4. Types of Scores

-Basal and Ceiling Scores

-The importance of establishing basal and ceiling scores

-Raw Scores vs. Transformed Scores

-Standards Scores, Percentile Ranks, T-Scores, Stanines, Grade Equivalents

5. Standard Error of Measurement

6. Standard Error of Differences


Speaker Bio –  Shelley Smilek, MSW,RRP, RVP

Shelley Smilek received her Honours Bachelor of Arts (Psychology) from the University of Waterloo and her Masters of Social Work from Wilfrid Laurier University.  She has worked in the field of vocational rehabilitation since 2003 and has been conducting transferable skills analyses since 2005 and vocational evaluations since 2011.  She is a Registered Rehabilitation Professional (RRP) and Registered Vocational Professional (RVP) with the Vocational Rehabilitation Association of Canada.  Shelley has always had a strong interest in research and statistics and has completed graduate level studies in statistics, assessment, and research design.  Prior to entering the field of Vocational Rehabilitation she worked as a research assistant in cognitive neuroscience and human factors labs at the University of Waterloo, Wilfrid Laurier University and with the Department of National Defense.  While completing her Masters she was also the lead investigator for a large-scale published study.