Question

Problem I. An experiment was done with 30 participants to test the effect of the type of attachment style that one has (i.e., secure, anxious, or avoidant) on how long one (in years) is married to her/his spouse. Higher scores below indicate a greater number of years. Use an alpha level of .05 (p = .05).

Secure Anxious Avoidant

M_{1} =
10
M_{2} =
9
M_{3}= 5
k =

n_{1} =
10
n_{2} =
10
n_{3} =
10
N =

T_{1} = 100 T_{2} =
90
T_{3} =
50
G =

SS_{1}=60
SS_{2}=
110
SS_{3}=
70
∑X^{2} = 2300

1. What statistical test should you use to evaluate the hypothesis above?

- one-way independent ANOVA
- simple linear regression
- Pearson Product Moment Correlation

2. State the hypotheses in words and notation.

Null hypothesis (words):

Alternative hypothesis (words):

3. What is N, G, and k above?

4. Find the degrees of freedom:

5. Find the critical value:

6. Complete the Summary Table below and calculate the test statistic.

*Note: I won’t be giving you this summary table on the test so be sure to memorize it!

SS df MS

Between Treatments

Within Treatments

Total

6) Do you reject H_{0}?

7) State your conclusion in terms of the study—what does it mean? Include the appropriate statistics, including p and dfs, and write it in APA style.

Answer #1

I did a two sample t-test to compare heart rate in men and women
during long runs
the null hypothesis is women have higher rates while running in
comparison to males
heart rate 1
N1: 10
df1 = N - 1 = 10 - 1 = 9
M1: 174.2
SS1: 5241.6
s21 =
SS1/(N - 1) = 5241.6/(10-1) =
582.4
heart rate 2
N2: 10
df2 = N - 1 = 10 - 1 = 9
M2: 176.8
SS2: 4199.6...

In this second portion of the Final Exam, you will critically
evaluate a quantitative research study on a social science topic.
Your instructor will post an announcement with the reference for
the article assigned for the exam. The study will be from a
peer-reviewed journal and published within the last 10 years.
In the body of your critique, describe the statistical
approaches used, the variables included, the hypothesis(es)
proposed, and the interpretation of the results. In your
conclusion, suggest other...

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