Longitudinal Ruff Figural Fluency Test Performance in Adults Aged 35-82

Longitudinal data from 2,515 participants aged 35-82 years, measured three times over an average six-year follow-up period. The dataset captures performance metrics on the Ruff Figural Fluency Test, a measure of executive function, to analyze practice effects. It includes variables such as age, gender, educational level, and consecutive measurement number.

Use Cases

• Model the longitudinal increase in unique designs per RFFT measurement using age and consecutive measurement number as predictors.
• Analyze the interaction between consecutive measurement number and age on the rate of performance improvement.
• Investigate the relationship between educational level and the number of perseverative errors across repeated test administrations.
• Assess gender differences in baseline RFFT performance and its change over the three measurement waves.

Strengths

• Substantial longitudinal scope with 2,515 participants tracked over an average of six years.
• Three repeated measurements per participant enable within-subject analysis of practice effects.
• Includes key demographic and cognitive variables: age, gender, educational level, unique designs, and perseverative errors.

Limitations

• Sample is geographically limited to participants from the PREVEND study in Groningen, the Netherlands.
• The analysis focuses on adults aged 35-82, limiting generalizability to younger or older populations.
• Specific row count and data granularity (e.g., raw test responses) are not detailed in the provided description.

Provenance

Source

Prevention of REnal and Vascular ENd-stage Disease (PREVEND) study.

Collection Method

Prospective longitudinal study with cognitive assessments administered three times.

Time Range

Average follow-up period of six years (specific start/end years not provided).

Freshness

Data last updated in June 2020.

Geography

Groningen, the Netherlands.