Exam 18: Moving Beyond the Basics of Research and Analysis: How Do I Understand More Complicated Research Designs

You want to run an analysis where you see which variables are significant, starting with the most significant predictor and then extracting further significant predictors in order of decreasing significance. What type of regression modelling would you use?

You want to analyse a dataset looking at differences in critical thinking ability between psychology students and physics students and the end of each year of study across a three year degree. How would you describe the analysis that you need to conduct on this data set?

You have run a one-way ANOVA where there are four conditions. You choose to break down the main effect using Bonferroni corrected t tests. How many t tests will you need to run, and what is the corrected alpha level that you should use?

You want to analyse a dataset looking at differences in critical thinking ability between psychology students and physics students and the end of each year of study across a three year degree. What type of design has been used?

You want to analyse a dataset looking at differences in critical thinking ability between psychology students and physics students and the end of each year of study across a three year degree. Your analysis shows that critical thinking skills improve greatly across the degree in psychology students, but remains exactly the same in physics students. What kind of effect is this?

Which of the following is an advantage of using effect sizes rather than p values?

In an ANCOVA, how many difference sources of variability are calculated?

You want to look at the relationship between two continuous variables whilst controlling for covariance. What type of analysis should you use?

Sphericity is an assumption in a repeated measures ANOVA. How is sphericity calculated?

What type of regression model would you use if you wanted to predict a binary outcome?