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Updated: Mar 14, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
Published on: August 29, 2025
Development and validation of an assessment tool for a national young worker curriculum
Rebecca J Guerin1, Andrea H Okun2, Patricia Kelley3
1National Institute for Occupational Safety and Health, U.S. Centers for Disease Control and Prevention, Cincinnati, Ohio. rguerin@cdc.gov.
Background:
An online, multiple-choice assessment was developed and validated for Youth@Work-Talking Safety, a NIOSH curriculum that equips middle and high school students with foundational workplace safety and health knowledge and skills.
Methods:
Classical Test Theory was used for the test development and validation; the Jaeger method was used for cut score determination. A total of 118 multiple-choice items were developed to measure the acquisition of knowledge and skills taught through the NIOSH curriculum. Pilot testing was conducted with 192 8-12th grade students and a cut score was determined.
Results:
The mean score for all test-takers on the Talking Safety assessment was 80.9%; total test reliability measured using an Alpha/KR20 statistic was 0.93. A minimum passing (cut) score of 74% was established.
Conclusions:
The assessment provides an objective measure of students' acquisition of the foundational workplace safety and health competencies taught through the Talking Safety curriculum. Am. J. Ind. Med. 59:969-978, 2016. © 2016 Wiley Periodicals, Inc.
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