A group of students in experimental lab are wanting to see if the average psychology major at a university has the same level of psychological knowledge as the general population. They assess 31 psychology majors using an overall psychology assessment and calculate a mean score of 20.91 and a standard deviation of 1.63. They know the general population has a mean score on this test of 18.32. The students think that psychology majors will know more about psychology than the general population.

Name the:

1) independent variable

2) scaling for independent variable

3) dependant variable

4) scaling for dependent variable

Answer the following questions:

5) can random Selection be used, explain

6) can random assignment be used, explain

7) based on what you know what statistical test should the students use to examine their hypothesis?

8) why is that test most appropriate?

9) what are the assumptions of this test? 10) what is the Null and alternative hypothesis?

11) what is/are the critical value(s)?

12) calculate the test statistic value

13) based on your calculations make the decision regarding your hypothesis

14) calculate the effect size and interpret your results

15) write a paragraph describing these results in APA format