Instructions: For each of the studies list below, first indicate the (A) null an
ID: 130160 • Letter: I
Question
Instructions: For each of the studies list below, first indicate the (A) null and (B) alternative hypotheses. Where possible, note whether it is directional or non-directional. Second, note the (C) IVs and (D) DVs (if present). Third, indicate (E) the most appropriate statistical test to use (Figure 13.1 in Salkind, page 235 may help unless it is a correlational study!). Finally, based on your own thought about how the data would turn out if you ran it, I want you to (F) write up the results as you would see it in an APA results section of an empirical article (make up the statistics, including F values, t values, correlation values, degrees of freedom, means, SDs, etc.. Make sure to write them in APA format and make sure they make sense in context – e.g. if you note significance, it must be higher than the tabled critical values).
2. Evidence suggests that married people have a better chance of surviving cancer than do singles means that the unmarried might be good targets for cancer-prevention programs. Researchers design a study to test this possibility.
A. Null hypothesis:
B. Alternative hypothesis:
C. IVs:
D. DVs:
E. Best test to use:
F. Results Write-Up
Explanation / Answer
A. There is no significant difference between married and unmarried individuals in their chances of surviving cancer.
B. Married individuals have a significantly higher chance of surviving cancer in comparison to unmarried individuals.
C. Marriage is the independent variable.
D. Cancer survival is the dependent variable.
E. The best measure to be used here is a t test. This is because the aim of the study is to assess if there are any significant differences between the two groups.
F. An independent-samples t-test was conducted to compare chances of surviving cancer in married individuals and unmarried individuals. The scores for married individuals (M=4.2, SD=1.3) was significantly higher than unmarried individuals (M=2.2, SD=0.84); t(8)=2.89, p = 0.20.