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ERIC Number: EJ898762
Record Type: Journal
Publication Date: 2010-Oct
Pages: 14
Abstractor: As Provided
ISSN: ISSN-0013-1644
Confirmatory Factor Analysis of the Scales for Diagnosing Attention Deficit Hyperactivity Disorder (SCALES)
Ryser, Gail R.; Campbell, Hilary L.; Miller, Brian K.
Educational and Psychological Measurement, v70 n5 p844-857 Oct 2010
The diagnostic criteria for attention deficit hyperactivity disorder have evolved over time with current versions of the "Diagnostic and Statistical Manual", (4th edition), text revision, ("DSM-IV-TR") suggesting that two constellations of symptoms may be present alone or in combination. The SCALES instrument for diagnosing attention deficit hyperactivity disorder was analyzed using confirmatory factor analysis. For both the home and school versions, a two-factor structure comprising items designed to measure inattention and hyperactivity/impulsivity showed best fit to the data. A three-factor model splitting the hyperactivity and impulsivity items onto separate factors resulted in similar fit, but with a correlation between these two factors of .94 on both versions of the instrument. The two-factor structure is preferred, lending support for the "DSM-IV-TR" criteria. (Contains 1 table.)
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A