Related Experiment Video
Updated: Jun 21, 2026

Examining Bilingual Language Control Using the Stroop Task
Published on: February 26, 2020
Spanish Multicenter Normative Studies (NEURONORMA Project): norms for the Stroop color-word interference test and the
Jordi Peña-Casanova1, Sonia Quiñones-Ubeda, Nina Gramunt-Fombuena
1Section of Behavioral Neurology and Dementias, Hospital del Mar, Institut Municipal d'Assistència Sanitària, Barcelona, Spain. jpcasanova@imas.imim.es
Abstract:
As part of the NEURONORMA project, we provide age- and education-adjusted norms for the Stroop color-word interference test (SCWT)-Golden version and the Tower of London-Drexel University version (TOL(DX)). The sample consists of 344 and 347 participants, respectively, who are cognitively normal, community dwelling, and ranging in age from 50 to 90 years. Tables are provided to convert raw scores to age-adjusted scaled scores. These were further converted into education-adjusted scaled scores by applying regression-based adjustments. Demographic variables, age, and education significantly affect scores of the SWCT and TOL(DX), sex, however, was found to be unrelated to performance in this sample. The normative data presented here were obtained from the same study sample as all the other NEURONORMA tests. In addition, the same statistical procedures for data analyses were applied. These co-normed data allow clinicians to compare scores from one test with all tests.

