Objective: The aim of the current study was to determine if standard Halstead Reitan instructions on the finger oscillation test (FoT) would be comparable to an abbreviated form consisting of the first five trials, or an average of trials 3-5 (Ashendorf, Horwitz, & Gavett, 2015). It was hypothesized there would be no significant difference utilizing an abbreviated form. Method: The study included 257 neuropsychological evaluation referrals; 47.1% referred from a physician. The mean age was 48.2 years (SD = 17.4), mean education level was 13. 5 years (SD = 3.2), with 58% Caucasian, and 87.5% right-handed. Results: Average FoT scores in the sample were 42.3 (SD = 10.5) for the dominant hand (DH) and 39.9 (SD = 9.2) for the non-dominant hand (NDH). Utilizing the first five trials, the DH average score was 42.2 (SD = 10.6), and 39.9 (SD = 9.3) for the NDH. When utilizing trials 3-5 only, the average was 42.3 (SD = 10.4) for the DH and 39.6 (SD = 9.1) for the NDH. There were no significant differences between methods for the DH, however, there was a significant difference between the original method and average of 3-5 for the NDH (t (255) = 3.91, p < .001). Abbreviated methods of administration had very good Kappa measure of agreement in performance validity classification. Conclusion: Results suggest abbreviating the FoT to the first five trials does not significantly affect the test score, however, utilizing the three trial method does significantly alter the test, but has good classification accuracy in detecting effort.