Video Using Preference Assessments to Understand Motivation ABA Training Video Preference Assessments help us determine what motivates our learners. Knowing what motivates our learners helps us use these items and activities within teaching activities and to determine what to use as reinforcers. This ABA training video reviews and demonstrates two different preference assessment strategies. Preference Assessment Strategies Free Operant Watching what your learner chooses to do when they can play with anything available. Forced Choice Giving your learner choices of several items and seeing which one they pick.