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ERIC Number: EJ1043336
Record Type: Journal
Publication Date: 2014-Oct
Pages: 8
Abstractor: As Provided
Reference Count: 37
ISSN: ISSN-0021-9584
Valid and Reliable Assessments to Measure Scale Literacy of Students in Introductory College Chemistry Courses
Gerlach, Karrie; Trate, Jaclyn; Blecking, Anja; Geissinger, Peter; Murphy, Kristen
Journal of Chemical Education, v91 n10 p1538-1545 Oct 2014
An important component of a student's science literacy is scale and concepts relating to scale including proportion and quantity. Measuring a student's scale concept has been examined using laboratory studies with one-on-one activities and interviews. However, classwide assessments to measure a student's scale concept have been limited and largely focused on one component of a student's scale concept. Classwide assessments that are validated and found to be reliable for a particular group of students can be useful in measuring the effects of interventions or course experiences. Two assessments were developed to measure a student's scale concept, targeting specific components of scale as described by Gail Jones and co-workers through the Scale Concept Trajectory. One of these assessments examines students' skills related to scale while the other examines students' scale concepts. The validation and reliability analyses as well as correlations of these measures to course performance in chemistry for both general chemistry I and preparatory chemistry are presented.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: National Science Foundation
Authoring Institution: N/A
IES Grant or Contract Numbers: DUE-1140610