Dr. samuel wants to study the relationship between test anxiety and age. his participants are third-, fourth-, and fifth-graders who will be studied over a three-year period. he does not wish to establish a cause-effect relationship between variables. this is an example of a(n):

Longitunidal Study.

Explanation: A longitundinal study is a research design in which the researcher studies and observes the behavior of the same variables (Could be people, traits, characteristics) over periods of time.

In this case, 1- Dr. Samuel wants to study relationship between variables 2- does not wish to establish a cause-effect relationship, but indeed, 3- he is conducting the study over a three year period with the same participants. Therefore, it is a Longitudinal Study.

1. government controls industry through policy

2.government is both a consumer and a producer

4. government can use policy t influence economy

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