Using pictures to assess reinforcers in individuals with developmental disabilities.

@article{Graff2003UsingPT,
  title={Using pictures to assess reinforcers in individuals with developmental disabilities.},
  author={Richard Graff and Lenwood Gibson},
  journal={Behavior modification},
  year={2003},
  volume={27 4},
  pages={470-83}
}
Tangible preference assessments were compared with pictorial preference assessments for 4 individuals with developmental disabilities. In the tangible assessment, on each trial two stimuli were selected and placed in front of the participant, who approached one. In the pictorial assessment, on each trial two line drawings were placed in front of the participant, who pointed to one. For both assessments, the percentage of opportunities each stimulus was approached or touched was calculated, and… CONTINUE READING