[article] 
inResearch in Autism Spectrum Disorders > 3-3 (July-September 2009) . - p.660-669

Titre :	Further evaluation of the effects of motivating operations on preference assessment outcomes
Type de document :	Texte imprimé et/ou numérique
Auteurs :	Nick CHAPPELL, Auteur ; William H. AHEARN, Auteur ; Richard B. GRAFF, Auteur ; Myrna E. LIBBY, Auteur
Année de publication :	2009
Article en page(s) :	p.660-669
Langues :	Anglais (eng)
Mots-clés :	Preference-assessment Motivating-operations
Index. décimale :	PER Périodiques
Résumé :	The abative effects of a 10-min period of free access to a participant's most preferred edible on preference assessment outcomes was examined using a multielement design with three individuals diagnosed with autism. Four moderately preferred edible items were identified for each participant; access to these edibles was then regulated throughout the study, to control for the number of edibles consumed. Four-item paired stimulus preference assessments were then conducted, under four treatment conditions. A control condition, which involved conducting four-item paired stimulus assessments, was used to determine baseline levels of preference for each edible. Preference assessments conducted under the other three treatment conditions were preceded by a 10-min period of free access to the participant's most preferred edible. The immediate condition involved conducting preference assessments immediately following the 10-min free-access period. The 10-min delay condition and the 20-min delay condition involved conducting preference assessments following a 10-min or 20-min delay after the free access period. For two participants, 10-min of free access to a preferred edible immediately prior to a preference assessment altered the probability of selecting that stimulus, but as the delay between the free-access period and the preference assessment increased, the abative effects became less apparent. For the third participant, preference did not change when assessments were immediately conducted following the 10-min period of free access. Implications of the study are discussed.
En ligne :	http://dx.doi.org/10.1016/j.rasd.2009.01.002
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=729

[article] Further evaluation of the effects of motivating operations on preference assessment outcomes [Texte imprimé et/ou numérique] / Nick CHAPPELL, Auteur ; William H. AHEARN, Auteur ; Richard B. GRAFF, Auteur ; Myrna E. LIBBY, Auteur . - 2009 . - p.660-669.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 3-3 (July-September 2009) . - p.660-669

Mots-clés :	Preference-assessment Motivating-operations
Index. décimale :	PER Périodiques
Résumé :	The abative effects of a 10-min period of free access to a participant's most preferred edible on preference assessment outcomes was examined using a multielement design with three individuals diagnosed with autism. Four moderately preferred edible items were identified for each participant; access to these edibles was then regulated throughout the study, to control for the number of edibles consumed. Four-item paired stimulus preference assessments were then conducted, under four treatment conditions. A control condition, which involved conducting four-item paired stimulus assessments, was used to determine baseline levels of preference for each edible. Preference assessments conducted under the other three treatment conditions were preceded by a 10-min period of free access to the participant's most preferred edible. The immediate condition involved conducting preference assessments immediately following the 10-min free-access period. The 10-min delay condition and the 20-min delay condition involved conducting preference assessments following a 10-min or 20-min delay after the free access period. For two participants, 10-min of free access to a preferred edible immediately prior to a preference assessment altered the probability of selecting that stimulus, but as the delay between the free-access period and the preference assessment increased, the abative effects became less apparent. For the third participant, preference did not change when assessments were immediately conducted following the 10-min period of free access. Implications of the study are discussed.
En ligne :	http://dx.doi.org/10.1016/j.rasd.2009.01.002
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=729