The aim of the research was to examine the congruent validity of the D-48, D-70 and D-2000 tests. The Domino test series is used for the objective measurement of nonverbal intelligence and is strongly saturated with the g-factor. The research participants were third year general and economic high school students in Osijek (N = 318). All participants solved two of the three tests, with an interval of 7 to 9 weeks between testing sessions. The obtained correlations between tests are not sufficiently high for these tests to be considered parallel, they are lower than the reliability coefficient of each test, which suggests a mild congruent validity. The construct validity of the D-2000 was examined using factor analysis. Three first order factors were identified, which, when combined, explain 27.73% of the variance. One second order factor was identified, explaining 52.03% of the total variance.

intelligence, Test D-48, Test D-70, Test D-2000, congruent validity