Complex sentence: The motives of self-tests of intelligence are also different, other tests can be motivated by organizations like the military, educational institutions or scholars, whilst self-tests are normally based on individual motives like curiosity, test anxiety or pride.
Split into simpler sentences: The motives of self-tests of intelligence are also different. Other tests can be motivated by organizations like the military, educational institutions, or scholars, but self-tests are normally based on individual motives like curiosity, test anxiety, or pride.