Conduct a preference assessments with a learner using the Paired-Stimulus (PS) and Multiple- Stimulus without Replacement (MSWO) formats. First, you will conduct a RAISD to determine items to use in your preference assessments. After you conduct the PS and MSWO, you will graph and describe your results, comparing and contrasting the results of each. Then, you will select a highly preferred item identified from one of the preference assessments to evaluate in a reinforcer assessment.