Final answer:
The three types of trial-based methods of stimulus preference assessments are: Forced-choice preference assessment, Paired-stimulus preference assessment, and Free-operant preference assessment.
Step-by-step explanation:
The three types of trial-based methods of stimulus preference assessments are:
- Forced-choice preference assessment: This method presents the student with two or more stimuli and asks them to choose their preferred option.
- Paired-stimulus preference assessment: In this method, the student is presented with pairs of stimuli and asked to select the preferred stimulus from each pair.
- Free-operant preference assessment: This method allows the student to freely interact with a set of stimuli and records the duration or frequency of their engagement with each stimulus.