General Knowledge of the World: a standardised assessment

Area of Science:

• Neuropsychology
• Cognitive Assessment
• Gerontology

Background:

• General knowledge is a cognitive function that can be affected by aging and neurological conditions.
• Standardized assessments are crucial for evaluating cognitive abilities in diverse populations.
• Previous research has explored various cognitive domains, but a comprehensive general knowledge test for Italian adults was lacking.

Purpose of the Study:

• To standardize a verbal "General Knowledge of the World" test in healthy Italian adults.
• To establish normative data for different knowledge domains.
• To assess the test's feasibility and discriminative power in individuals with very mild Alzheimer's disease.

Main Methods:

• A 168-question verbal test covering 14 knowledge domains was administered to 175 healthy Italian adults (97 women, 78 men) with at least 8 years of education.
• Norms were established for each subtest.
• A feasibility and discrimination analysis was conducted on 30 patients with very mild Alzheimer's disease.

Main Results:

• Performance was significantly influenced by education level, with higher education correlating with better scores.
• Women performed significantly worse than men.
• Age was not found to be an influential factor in test performance.
• The test demonstrated feasibility and potential for discriminating between healthy controls and individuals with very mild Alzheimer's disease.

Conclusions:

• The "General Knowledge of the World" test is a reliable tool for assessing cognitive function in Italian adults.
• Educational attainment is a key factor influencing general knowledge, more so than age.
• The test shows promise as a screening tool for early-stage Alzheimer's disease.
• Further research should explore the test's utility across different cultural and educational backgrounds.