Dataset

Data from: Reference data for the Ruff Figural Fluency Test stratified by age and educational level

Izaks, G. J. (Creator), Joosten, J. (Creator), Koerts, J. (Creator), Gansevoort, R. (Creator), Slaets, J. (Creator), University of Groningen, 5-Aug-2014

Dataset

Description

The Ruff Figural Fluency Test (RFFT) was developed to avoid the difficulties that were encountered in earlier tests of figural fluency. Although the test characteristics of the RFFT seem to be good and it is a valuable addition to neuropsychological assessments, reference data are still scarce. To this aim, we required 2,404 community dwelling persons in Groningen, the Netherlands to perform the RFFT. All 1,651 persons with a complete RFFT and known educational level formed the reference sample. Their age ranged from 35 to 82 years and their educational level from primary school to university grade. Ninety-six percent of the persons were of Western European descent. All tests were analyzed by two independent examiners and subsequently three measures were calculated: number of unique designs, number of perseverative errors and error ratio. The main finding was that performance on the RFFT was dependent on age and educational level. This was not only observed in older persons but also in young and middle-aged persons. Reference data for the three RFFT measures are presented in groups of five years of age ranging from 35-39 years to 75 years or older.
Date made available5-Aug-2014
PublisherUniversity of Groningen
Geographical coverageCity of Groningen, The Netherlands
Access to the dataset Open
Contact researchdata@rug.nl

    Keywords on Datasets

  • Medical sciences, adult, age factors, executive function, frontal lobe, neuropsychological tests, reference values
Related Publications
  1. Reference Data for the Ruff Figural Fluency Test Stratified by Age and Educational Level

    Izaks, G. J., Joosten, H., Koerts, J., Gansevoort, R. T. & Slaets, J. P., 10-Feb-2011, In : PLoS ONE. 6, 2, 8 p., 17045.

    Research output: Contribution to journalArticleAcademicpeer-review

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ID: 64567591