The fact that children tend to perform more similarly on two different tests of spatial visualization than they do on a test of spatial visualization and a test of perceptual speed supports the usefulness of:

dividing intelligence into seven primary mental abilities.
scholastic achievement tests.
thinking of intelligence as a single trait.
science and math classes.

dividing intelligence into seven primary mental abilities.  

Explanation:

Research reports suggest that intelligence in individuals are linked to seven factors which are referred to as primary abilities, these are; word fluency, verbal comprehension, spatial visualization, number facility, associative memory, reasoning, and perceptual speed. This is the reason why a child will perform well on a particular area than the other, that is, the child may perform better and similarly in a series of spatial visualization test if that is his/her primary ability than if he is given a test on perception which is not his/her area of ability.

both the house and senate must approve the conference report.   after it is approved by both on an identical from, it will be sent to the president.   if the president approves it, it will become law.

the old way of life was represented by superstition, an angry god, and absolute submission to authority. the thinkers of the age of reason ushered in a new way of thinking. this new way championed the accomplishments of humankind. individuals did not have to accept despair. science and reason could bring happiness and progress. kings did not rule by divine right. they had an obligation to their subjects. europeans pondered the implications for nearly a century. americans put them into practice first.