[The Salthouse Perceptual Comparison Test: normalization and standardization for Spanish population]

Area of Science:

• Neuropsychology
• Cognitive Psychology
• Psychometrics

Background:

• The Salthouse Perceptual Comparison Test (SPCT) is a widely used tool in neuropsychology to assess processing and perceptual speed.
• Existing normative data for the SPCT is not adapted to the Spanish population.
• Standardization is crucial for accurate clinical interpretation and research.

Purpose of the Study:

• To normalize and standardize the SPCT for the Spanish population.
• To account for sociodemographic factors influencing SPCT performance.
• To create age- and education-adjusted normative data.

Main Methods:

• The study involved 700 participants aged 18–90.
• Participants were assessed using the SPCT as part of the Normacog project.
• Statistical analyses examined the impact of age, education, and sex on SPCT performance.

Main Results:

• Age and level of education significantly affected SPCT performance (correct answers and errors).
• Age accounted for a substantial portion of the variance in SPCT scores (SPCT-3: 47%; SPCT-6: 45%).
• Older individuals with lower educational attainment demonstrated poorer performance and higher error rates.

Conclusions:

• This research presents the first normative data for the SPCT tailored to the Spanish population.
• The findings confirm the significant influence of age and education on SPCT performance.
• Administration and correction guidelines are provided as part of the Normacog project.