Question

For each of the research studies described below, select which of the following analyses would be most appropriate. Please type your answers in the boxes exactly as they are printed here. I will check to see if Bb scored you “incorrect” for misspellings/typos, but if you type carefully (or copy-paste carefully), I can get grades done more quickly.

YOUR ANSWER CHOICES:

single sample t-test

independent samples t-test

related samples t-test

one-way independent measures ANOVA

one-way repeated measures ANOVA

Scheffe’s test

Tukey’s HSD test

two-way two-factor independent samples ANOVA

two-way mixed design ANOVA

Pearson correlation

one-way goodnesss of fit chi-square

two-way chi-square test for independence

linear regression.

The RESEARCH STUDIES:

a. Ten PSY, ten PT, and ten NSG students in a statistics course are selected at random and asked to estimate the number hours per week they are spending on the statistics course. The researcher wants to determine whether the three types of majors spend different amounts of time, on average, studying statistics. The statistical test to use would be _________________ .

b. People who are self-identified as either lower, working, middle, or upper class are compared on their attitudes toward corporal punishment of children. Attitudes are measured on a 7-point scale ranging from strongly disagree with the practice (1) to strongly agree with the practice (7). The statistical test to use would be ____________.

c. The effectiveness of a sexual harassment program is tested by taking before and after measures of sexual harassment knowledge. The knowledge scale is a 100-point scale, with higher scores indicating greater knowledge. The statistical test to use would be ___________.

d. A random sample of 100 CSS students is asked to write down their GPA and the number of hours they work per week for a salary. The researcher (the head of the Student Development Center) wants to determine whether there is a relationship between the number of hours worked and GPA. The statistical test to use would be_______________ .

e. PSY, PT, and NSG majors at CSS are asked to label the workload in their major as “light,” “average,” or “excessive.” The researcher (the chair of the Nursing Department) wants to find out if there is a greater likelihood (or frequency) of NSG majors selecting “excessive” than the other majors. The statistical test to use would be ______________.

f. A researcher wants to determine whether the average height of a sample of adult American men with Klinefleter’s syndrome (M = 5’11”) differs from the average height of adult American Men (population μ is 5’8”, σ is not known). The statistical test to use would be ______

g. A researcher wants to predict marital satisfaction scores from conflict resolution strategies, length of the marital relationship, and number of extramarital affairs. The statistical test to use would be__________ .

h. Eight MGT, eight HIM, and eight PSY students who had completed Dr. Dietrich’s statistics course were selected at random and given one of two types of statistics exam, open-book or closed-book. The researcher wants to determine whether there is an effect of major and type of exam on the mean number of correct answers. The statistical test to use would be ___________.

Answer 1

SolutionA:

Ten PSY, ten PT, and ten NSG students in a statistics course

We are checking the group means of these 3 groups are equal

PERFORM ONE WAY ANOVA

one-way independent measures ANOVA

Solutionc:

c. The effectiveness of a sexual harassment program is tested by taking before and after measures of sexual harassment knowledge. The knowledge scale is a 100-point scale, with higher scores indicating greater knowledge. The statistical test to use would be

before and after same subjects

so use paired t test

related samples t-test

d. A random sample of 100 CSS students is asked to write down their GPA and the number of hours they work per week for a salary. The researcher (the head of the Student Development Center) wants to determine whether there is a relationship between the number of hours worked and GPA. The statistical test to use would be___

To check relationship exists or not go for pearson correlation

Pearson correlation

g. A researcher wants to predict marital satisfaction scores from conflict resolution strategies, length of the marital relationship, and number of extramarital affairs. The statistical test to use would be___

Perform regression to predict marital satisfaction scores

that is

marital satisfaction scores=b0+b1* length of the marital relationship+b2* number of extramarital affairs

Regression

f. A researcher wants to determine whether the average height of a sample of adult American men with Klinefleter’s syndrome (M = 5’11”) differs from the average height of adult American Men (population μ is 5’8”, σ is not known). The statistical test to use would be

since σ is not known perform t test as

t=xbar-mu/s/sqrt(n)

and p value and then we can conclude

single sample t-test