An investigator was interested in studying the effect of taking a course in child development upon attitudes toward childrearing. At the end of the semester, the researcher distributed a questionnaire to students who had taken the child development course. Questionnaires were also given to an equal number of students who had not taken the course. The students who had taken the child development course had different attitudes from the students who had not taken the course (cg., they had more positive e families).

a) questionnaires

b) attitudes of student who had and who hadn't taken the course

c) difference in age group of students among whom questionnaire were distributed in both the groups.

d) restrict the age group in both the experimental groups.

Explanation:

The complete quetion is:

An investigator was interested in studying the effect of taking a course in child development upon attitudes toward childrearing. At the end of the semester, the researcher distributed a questionnaire to students who had taken the child development course. Questionnaires were also given to an equal number of students who had not taken the course. The students who had taken the child development course had different attitudes from the students who had not taken the course (cg., they had more positive response about having large families).

a) Identify the independent variable

b) Identify the dependent variable

c) identify confounding variable

d) propose a method to unconfound the experiment

a) questionnaires

b) attitudes of student who had and who hadn't taken the course

c) difference in age group of students among whom questionnaire were distributed in both the groups can lead to different understanding of questionnnaire and so affect the response towards the questions.

d) restrict the age group in both the experimental groups.

Confounding variables are variables that effect both the dependent and independent variable

the best and most correct answer among the choices provided by the question is the second choice "less supportive to the war of 1812"

the war of 1812 was a military conflict that lasted from june 1812 to february 1815, fought between the united states of america and the united kingdom, its north american colonies, and its native american allies.

i hope my answer has come to your . god bless and have a nice day ahead!

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

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