Key result
KeyStrokes test demonstrates strong internal consistency and correlates with standard neuropsychological tests.
Why the study?
This pilot study aimed to demonstrate proof of concept of the online and computerized KeyStrokes test by evaluating its internal consistency and correlations with standard neurocognitive assessments.
Does the KeyStrokes test correlate with standard neuropsychological assessments in patients referred for evaluation?
Cross-Sectional (n=87)
Does the KeyStrokes test correlate with standard neuropsychological assessments in patients referred for evaluation?
The KeyStrokes test shows strong internal consistency and correlates well with established neuropsychological tests, supporting its potential as an online cognitive assessment tool.
Supports KeyStrokes validity as online tool; leaves open clinical adoption pending prospective validation.
The 'KeyStrokes' test (KS) was created as an online and computerized neuropsychological assessment to assess simple attention, processing speed, and executive function. This pilot study aims to show proof of concept of the KS test as a computerized assessment. Building on a previous feasibility study, we assessed the KS test's internal consistency and correlations to other neurocognitive assessments. Participants were recruited from a clinical sample of patients referred for standard neuropsychological evaluation and were asked to perform several standard neurocognitive tests and six subtests of the KS: two response time trials (arrows, words), three inhibition trials (arrows, words, arrows/words) and one inhibition/switching trial (arrows/words). We assessed internal consistency; conducted correlation analyses between each KS subtest, standard neuropsychological tests, and demographic characteristics (age, education, ethnicity, and gender); and conducted multiple regression analyses to assess the relationship between test performance and age and education. We assessed 87 individuals with a mean age of 54.09 years. Correlations between KS subtests were positive and strong (all above ρ > .72, p < .001). Subtests were generally positively correlated with select WAIS-IV and Reynolds Interference Task subtests, and negatively correlated with trail making tests, the grooved pegboard test, and age. Age significantly predicted performance (p < .001), whereas education did not. Ethnicity appeared to correlate with certain subtests, whereas gender did not. Analysis of correlations between the KS subtests and multiple well-established neuropsychological tests showed the possible viability of the KS as a new neurocognitive measure assessing areas of attention, processing speed, and executive function. Additional study of the KS can provide more evidence for its use as a new computerized, and possible online neuropsychological assessment.
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Lopez et al. (2025) conducted a cross-sectional in Patients referred for standard neuropsychological evaluation (n=87). KeyStrokes test (KS) vs. Standard neuropsychological tests was evaluated on Internal consistency and correlations to other neurocognitive assessments (ρ > 0.72, p=<0.001). The KeyStrokes test demonstrated strong internal consistency between subtests (ρ > 0.72, p < 0.001) and correlated with standard neuropsychological tests.
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