The California Verbal Learning Test-II: normative data for two Italian alternative forms

Area of Science:

• Neuropsychology
• Cognitive Psychology
• Psychometrics

Background:

• The California Verbal Learning Test-II (CVLT-II) is a key tool for assessing verbal learning and memory.
• Standardized assessment tools are crucial for accurate cognitive evaluation in diverse populations.
• Normative data specific to the Italian population is needed for the CVLT-II.

Purpose of the Study:

• To develop and validate two parallel forms of the CVLT-II for use in Italy.
• To establish normative data for the CVLT-II in a representative Italian sample.
• To create a regression model for adjusting CVLT-II scores based on demographic factors.

Main Methods:

• Two distinct forms of the CVLT-II were created.
• 280 healthy Italian adults were recruited and randomly assigned to one of the two forms.
• Statistical analysis, including regression modeling, was used to analyze the data.

Main Results:

• No significant differences were found between the two CVLT-II forms.
• A regression model was successfully developed to adjust scores for sex, age, and education.
• Lower tolerance limits for the adjusted scores were calculated.

Conclusions:

• The two developed CVLT-II forms are equivalent and suitable for the Italian population.
• The regression model provides a method for obtaining demographically adjusted scores, enhancing assessment accuracy.
• This study provides essential normative data and adjusted scoring for the CVLT-II in Italy.