Agraduate student at a local university is interested in the impact on intelligence of the no child left behind legislation. to determine this, she gives an intelligence test to people ranging in age from 15 to 45. the graduate student is conducting a(n) study.

cross-sectional study

Explanation:

This a study that is carried out at one point in time in which a researcher doesn't interfere with variables.

A researcher is able to analyse various traits at one time such as focusing on age, gender, income etc.

It is used to analyse those traits that seem to triumph within a particular population which can be useful is studying recent events within a particular population.

It doesn't work like longitudinal studies which focuses on extended period of studies it focuses on the current situation and why it's happening now at this particular moment. It may provide good information on correlations, like how one factor may affect the other in the same direction.

the structure of state governments are determined by. "state constitutins'

under the us constitution, all state governments are.'republics'