Problem: In this SPSS assignment, use the tools learned in Chapter 11 to describe a dependent-samples repeated-measures t-test using the teachersurvey.sav SPSS data file.  Imagine a researcher is interested in whether teachers'self-esteem differs at the beginning and at the end of the school year.Use the data file:  teachersurvey.sav to conduct a dependent-samples repeated-measures t-test (referred to as a paired-samples t-test in SPSS).  In this data-set self-esteem was measured at the beginning of the school year (ScoreOne) and at the end of the school year (ScoreTwo) (i.e., repeated-measures with the same group).  These are the variables to be used in this analysis.

Required:

a.) Are the two main assumptions underlying repeated-measures t-tests met? Support your response with SPSS output as needed.

b.) What are the null and alternative hypotheses?

c.) What are the mean and standard deviation for beginning self-esteem (Score One) and end self-esteem(ScoreTwo) using APA style?

d.) What is the value of Cohen's d?Is it small, medium, or large?

e.) Interpret the mean, standard deviation, standard error, and confidence interval in the paired-samples t-test output box.

f.) What is the percentage of variance explained?Interpret this value.

g.) Report the results in APA format. 

h.) What might be concluded from these results? In theseconclusions, discuss possible limitations of the study and recommendations for future research.