Mechanical Abilily
Psychomotor competence, of course, relates closely to mechanical ability, which is actually a combination of skills. In addition to the ability to perceive. mechanical relationships, strength, precision, speed of movement, and the ability to' combine all of them are needed. Complex tests of mechanical aptitude have proved to be more successful than simple ones. Mechanical ability is not really correlated with general intelligence, but this does not mean' that intelligence is unnecessary for mechanical work. It means rather that sheer mechanical ability is distributed among people without much regard to the things that intelligence tests measure. Many intelligent people have great mechanical skill, and some have none. For success in a mechanical field, both special ability and general intelligence are necessary, but these two components must be measured separately. Such talents as music and art fit a similar pattern.
