What is an Action Research Arm Test?
An or ARAT is an observational tool used to assess a client’s upper extremity performance, specifically its function, coordination, and dexterity during recovery. In fact, the creator of the test said that the ARAT is a modified version of the Upper Extremity Function Test.
The test itself has 19 items categorized into four categories or what they call subscales, namely:
- Grasp Subscale
- Grip Subscale
- Pinch Subscale
- Gross Movement Scale.
Per subscale, the items or tasks are organized from increasing to decreasing difficulty. According to the creator, this organization helps in test efficiency. If clients can perform the first task, they no longer need to do the easier subsequent tasks per subscale.
Given that this test is a modified version, it does carry similarities to the Upper Extremity Function Test, such as the equipment and some test instructions. However, the differences lie in the scoring, the time required to complete the test, and, as stated above, the grouping and arrangement of the items.











