Data from “Changes in test-taking patterns over time” concerning the Flynn Effect in Estonia

The dataset from our previous Intelligence paper consists of data collected from the National Intelligence Tests (NIT, Estonian adaptation) at two historical time points: in 1933/36 (N=890) and in 2006, (N=913). The average age of the students was 13 years. The data-file consists of information about the cohort, age, and gender and test results at the item level for nine of the ten NIT subtests and subtest scores for the 10th subtest. The three answer types are separated into three categories: right answers, wrong answers and missing answers. Data can be used for the psychometric research of cohort and sex differences at the scale and item level.