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Five Digit Test

Cognitive test that can be administered in any language with the equivalent result.

5 Digit Test

The FDT (Five Digit Test) is a multilingual, non-reading test that minimizes the effects of education and social class, allows the testing of much younger students, and allows the testing of some severe clinical cases, who my not be able to read words or name colors. the FDT quickly measures mental processing speed and the ability to direct and switch their attentional control.

CONCLUSION: The FDT allows effective exploration of the Stroop effect in prereading and non-reading subjects, even in other languages.

About Us

Born in Barcelona (Spain) in 1932. Wife an educator: twin girls aged 53; son aged 51 U.S. resident since 1969; U.S. citizen since 1976. Born and raised in Barcelona, Spain. Studied Law (J.D.) at the University of Barcelona (1960-66).

Five Digit Test

Cognitive test that can be administered in any language with the equivalent result.

School Success

Measures both language and reading fluency

Cognitive Efficiency

Measures mental effort and flexibility

Trauma or Disability

Measures extent of neural dysfunction

In Any Language

Valid with very different number-world lenght

Testimonials