Collapsing Scale Categories: Comparing the Psychometric Properties of Resulting Scales

Autor/inn/en	Colvin, Kimberly F.; Gorgun, Guher
Titel	Collapsing Scale Categories: Comparing the Psychometric Properties of Resulting Scales
Quelle	In: Practical Assessment, Research & Evaluation, 25 (2020), Artikel 6 (20 Seiten)Infoseite zur Zeitschrift PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1531-7714
Schlagwörter	Psychometrics; Measures (Individuals); Self Concept Measures; Self Esteem; Comparative Analysis; Test Reliability; Test Validity; Factor Structure; Adults; Rosenberg Self Esteem Scale + Suchen Sie Ihr Suchwort? Psychometry; Psychometrie; Messdaten; Self-esteem; Selbstaufmerksamkeit; Testreliabilität; Testvalidität; Faktorenstruktur
Abstract	This study compares a scale, the Rosenberg Self-Esteem Scale, that was administered with four response categories to versions of the same scale that were administered with six and eight response categories. Respondents were randomly assigned to take one of the three versions of RSES. A rating scale utility analysis was conducted on all three versions creating two new four-category versions after collapsing (or combining) adjacent categories. The three different four-category versions were compared on such properties as average scores, correlations with external variables, and factor structure. While most of the psychometric properties were similar across all versions, there were moderate differences related to criterion validity: the scale that did not need to be collapsed had the strongest relationship with external variables, even though there were slightly stronger correlations for the collapsed versions compared to their original scales. A recommendation is made that if it is found that too many categories are being used for a scale then new administrations of the scale should also use the new format, however, an argument could be made to continue administering the survey in its original format, but then collapse responses before analysis. (As Provided).
Anmerkungen	Center for Educational Assessment. 813 North Pleasant Street, Amherst, MA 01002. e-mail: pare@umass.edu; Tel: 413-577-2180; Web site: https://scholarworks.umass.edu/pare
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01