The effectof reinforcements defined by direct andindirect preference evaluation above behaviour of beingrelated to activity

Aim of this research is to comparatively examine effectiveness of direct and indirect preference evaluation above behaviour of being related to activity for whom diagnosised with autism spectrum. As a one of the one-subject research. Two make students in age 7 and 11 are participated in research. Dependent variable of research is level being interested in activity. Indepanted variables of research are direct preference evaluation method and indirect preference evaluatıon method.Starting level, utilizing sessions, endstate productivoness findinps and teacher's view take part in research. At the end of the research ıt ıs established that participarts' level of being interested in activity is higher in sessions with direct preference evalvation and this method is more productive, too. Finding from conclusion of research are criticized around literatüre. Keywords: Autism Spectrum Disorder, Indivudual with Autism Spectrum Disorder, Being Interested in Activity, Direct Preference Evaluation.