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Dissertation

The Relationship between Lumosity’s Neurocognitive Performance Test and Traditional Cognitive Batteries: An Independent Investigation of Convergent Validity

1 January 2017

Abstract

Lumosity is an online program that provides subscribers with games purported to provide training in different cognitive domains. Lumosity developers also created a battery of tests, the NeuroCognitive Performance Test (NCPT), that allows subscribers to monitor the effects of their training over time. There are few studies to date examining the psychometric properties of the battery. The aim of the present study was to investigate the convergent validity of individual measures of the NCPT with conventional neuropsychological measures used widely in neuropsychological practice. A total of 25 neurologically-healthy, English-speaking adults between 18 and 35 years of age (mean/SD: Age = 28/2.73; education = 16.80/1.44; 44% male) participated in the study. Exclusion criteria included the presence of current neuropsychological or psychiatric disorders (e.g., ADHD, Learning Disorder, severe and persistent mental illness such as Schizophrenia or Bipolar Disorder, neurologic disorders including history of significant traumatic brain injury, stroke, dementia, brain tumor, epilepsy, multiple sclerosis, etc.) and pregnancy. Correlation coefficients were calculated between individual NCPT subtests and conventional neuropsychological tools, as well as with a measure of computer anxiety and with a measure of sleep quality. Findings are displayed in a multitrait-multimethod correlation matrix. Results indicated that some NCPT measures demonstrated good concordance with conventional neuropsychological tools; however, other measures were not significantly related as hypothesized despite parallel construction. Further studies with larger and more diverse samples are needed to determine whether the NCPT provides adequate psychometric properties for its proposed uses.


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