Research Methods folks:
1 – Here are some sample problems people submitted:
http://www.webster.edu/~woolflm/ttest.html
Sample Problem:
In an experiment to see of there is a difference among several population means,
independent samples were drawn from the populations and sums of squares
were computed. The following incomplete ANOVA table resulted:
Source
DF
Sum of
Squares
Model
Error
Total
2
16
18
43.0244361
91.6071429
134.6315789
Mean Square
F Value
2 – Here’s the promised direction re studying for the final:
Emphasize:
•
•
•
Descriptive stat
–
Measures of central tendency, dispersion
–
z scores
–
Probability
–
Frequency distributions, tables, graphs
–
Correlation (interpret, not calculate)
Inferential stat
–
Hypothesis testing
–
Standard error of the mean
–
t test (calculate one, for one sample; interpret others)
–
Confidence intervals (interpret, not calculate)
–
Chi square (interpret, not calculate)
–
ANOVA – interpret summary table
–
Type I and II errors
Experimental design
–
IV, DV, controls, confounds, counterbalancing
–
Repeated measures, Independent groups
–
Sampling
–
Operational definitions
–
Individual differences variable
–
Ethics of human study
–
Possible sources of bias and error variance and how to
minimize/eliminate
Qualitative methods
–
Per Rice Lively, Gracy
–
Survey generation (from SZZ, Ch. 5)
•
De-emphasize
•
•
•
•
•
•
Complicated probability calculations
APA ethical standard (S,Z, & Z, Ch. 3)
Content analysis (SZZ, Ch. 6)
Calculating an ANOVA.
Nonequivalent control group design (SZZ, Ch. 11) (Indeed, de-emphasize all
Ch. 11.)
Hinton, Ch. 12
Bring your questions Wednesday.
Randolph.