ERIC Number: EJ981047
Record Type: Journal
Publication Date: 2012-Dec
Pages: 10
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1539-1515
EISSN: N/A
A Classical Test Theory Analysis of the Light and Spectroscopy Concept Inventory National Study Data Set
Schlingman, Wayne M.; Prather, Edward E.; Wallace, Colin S.; Brissenden, Gina; Rudolph, Alexander L.
Astronomy Education Review, v11 n1 p010107-1-010107-10 Dec 2012
This paper is the first in a series of investigations into the data from the recent national study using the Light and Spectroscopy Concept Inventory (LSCI). In this paper, we use classical test theory to form a framework of results that will be used to evaluate individual item difficulties, item discriminations, and the overall reliability of the LSCI. We perform an analysis of individual students' normalized gains, providing further insight into the prior results from this data set. This investigation allows us to better understand the efficacy of measuring student achievement using the LSCI. Future papers will discuss our investigation of the data from the recent national study using item response theory (IRT). (Contains 8 figures and 1 table.)
Descriptors: Item Response Theory, Spectroscopy, Investigations, Light, Science Instruction, Astronomy, Scientific Concepts, Logical Thinking, Thinking Skills, College Science, Test Theory, Test Reliability, Difficulty Level
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A