Assessment of Motor and Process Skills (AMPS)
The OT Assessment Package (OTAP software) is used to implement many-facet Rasch analyses that convert a person’s raw AMPS item scores for at least two ADL tasks into one overall, linear ADL motor and one overall, linear ADL process ability measure. These ADL ability measures are adjusted to account for the challenge of the tasks the person performed and the severity of the rater who scored the person’s ADL task performances. The use of many-facet Rasch analyses enable AMPS evaluations based on the person’s performance of different tasks and/or scoring done by different AMPS raters to be equated. The resulting ADL ability measures are quantitative representations of a person’s overall ability to perform ADL tasks, reflecting the level of clumsiness or physical effort, efficiency, safety, and independence the person demonstrated while performing ADL tasks. One ADL motor and one ADL process ability measure is generated by the OTAP software and those measures are based on an analysis of all ADL tasks the person performed. A minimum of two tasks is required to obtain ADL motor and ADL process ability measures that are valid and reliable.
The occupational therapist can use the software to generate several reports that assist with analysis of a person’s ADL ability measure, documentation of the results of the AMPS observation, intervention planning, and interpreting the significance of a change in ADL ability upon re-evaluation.