An Independent Investigation into the Psychometric Properties of the Adult Scale of Hostility and Aggression (A-SHARP)

Autor/inn/en	Rojahn, Johannes; Rick-Betancourt, Brittney; Barnard-Brak, Lucy; Moore, Linda
Titel	An Independent Investigation into the Psychometric Properties of the Adult Scale of Hostility and Aggression (A-SHARP)
Quelle	In: Journal of Mental Health Research in Intellectual Disabilities, 10 (2017) 4, S.253-266 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1931-5864
DOI	10.1080/19315864.2017.1299266
Schlagwörter	Adults; Rating Scales; Aggression; Intellectual Disability; Verbal Communication; Bullying; Psychometrics; Classification; Day Programs; Behavior Problems; Test Validity; Statistical Analysis; Minnesota + Suchen Sie Ihr Suchwort? Rating-Skala; Intellect; Disability; Disabilities; Verstand; Behinderung; Mobbing; Psychometry; Psychometrie; Classification system; Klassifikation; Klassifikationssystem; Testvalidität; Statistische Analyse
Abstract	Background: The Adult Scale of Hostility and Aggression (A-SHARP) rating scale assesses the frequency/severity (problem scale) and the reactive-proactive motivation (provocation scale) of aggressive behaviors in adults with intellectual disabilities (ID). Items are assigned to five subscales (Verbal Aggression, Physical Aggression, Hostile Affect, Covert Aggression, and Bullying). Although psychometric properties reported by the scale's developers were very good, we wanted to corroborate them independently. We were also interested in whether the reactive-proactive distinction of aggressive behavior is related to a behavioral/functional classification. Method: Staff at a day-treatment program for adults with ID completed ratings for 155 clients using the A-SHARP, the Behavior Problems Inventory-01 (BPI-01), and the Questions about Behavioral Function (QABF). Results: Internal consistency was found to be excellent, and the A-SHARP Physical Aggression subscale had good congruent and clinical validity. Confirmatory factor analysis showed sufficient evidence toward the factorial validity of the A-SHARP's problem scale. The reactive-proactive classification of aggressive behavior motivation by the A-SHARP's provocation scale was independent of the functional classification. Conclusions: The A-SHARP is a useful addition to a small number of existing instruments for assessing aggressive behavior in adults with ID, especially its problem scale. We discuss how the A-SHARP provocation scales might provide therapy-relevant information. Empirical evidence for the clinical utility of the A-SHARP provocation scale will have to be established by future research. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01