**Categorical Lab #10
Assignment**

For this week's assignment, please use the StemCellResearch
example data posted on the Blackboard site. This dataset contains hypothetical
data from a random sample of individuals belonging to certain denominations of Christianity.
The variables we will use are FundSCR, which reflects the participant's
opinion concerning the funding of stem cell research (1=Definitely Do Not Fund,
2=Probably Do Not Fund, 3=Probably Fund, 4=Definitely Fund), female
(1=female, 0=male), and religiosity (1=liberal denomination, 2=moderate denomination,
3=fundamentalist denomination). You are particularly interested in the
difference between those who definitely do not want to fund stem cell research
versus the other three categories.

1. Using a cumulative logit
model, assess the significance of gender and religiosity as they predict one's
willingness to fund stem cell research. (2 pts.)

2. What is the probability of a male from a
moderate Christian denomination wanting to fund stem cell research versus not
wanting to fund it? What is the probability of a female from a liberal
Christian denomination definitely wanting to fund stem cell research? (2 pts.)

3. Write a results section summarizing the
effects of gender and religiosity on opinions toward stem cell research
funding. Be sure to discuss the significance of the predictors and to interpret
the effects. This will probably take at least two good paragraphs --- one to
discuss the significance of the predictors, and one to discuss the effect(s) of
the significant predictor(s). Minimum 200 words. (4 pts.)

4. Perhaps prior research suggests that it might
not be wise to have made the proportional odds assumption. Test the assumption
of proportional odds using an adjacent category logit
model in which the ordinal measure FundSCR is
predicted by gender and religiosity. What do you conclude? If your conclusion
suggests the proportional odds assumption should not be made, discuss between
which categories the largest changes in odds can be observed for a one point
change in religiosity. (2 pts.)