B - 119 Comparing the Keystrokes (Ks) Test, an Online Assessment of Attention, Processing Speed, and Executive Functioning, with Established Neuropsychological Measures

Abstract Objective Despite technological advances, few accessible computerized neuropsychological measures exist. The KeyStrokes (KS) test was developed to provide an online assessment of simple attention, processing speed, and executive functioning. Methods 25 participants from a mixed clinical sample of patients (M age = 52.6, SD = 15.7; 72% females) completed the KS test, which includes six conditions: two response time trials, three inhibition trials, and one inhibition/switching trial. Participants also completed the following: WAIS-IV digit span, symbol search, coding, matrix reasoning, reliable digit span, the Reynolds Interference Task (RIT), the Trail Making Test part A (TMT-A) and part B (TMT-B), the Grooved Pegboard Test (GPT), and the BDI-II and BAI. Results The internal consistency of the KS was excellent, α = 0.958. Correlations computed for the six subtests were all positive, strong (all above r > 0.68), and significant (p < 0.001). Higher scores on all KS subtests were associated with higher scores of each of the WAIS-IV subtests and on the RIT (p < 0.05). Negative correlations were seen for TMT-A and TMT-B, as well as the GPT and all KS subtests (p < 0.05). Multiple regression analyses demonstrated that age significantly predicted performance (p < 0.001), while education did not. Conclusion These findings show strong convergent and discriminant validity with established measures. Based on our results, the KS appears to be a viable option for a new assessment particularly with the strong correlation data between the KS and multiple well-established neuropsychological tests.