Statistics for Psychology: A Beginner's Guide
Second Edition
Your Turn Answers
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1. A continuous (Interval) DV requires the use of a General Linear model.
2. A Categorical DV requires the use of a Generalized Linear model.
3. If you are interested in whether or not a variable is having a unique effect on a DV, then use ANOVA.
Fill in the gaps in the table and in the model formula to complete the results
Below are the results of a GLM analysis looking at three variables that might influence a student’s overall grade. There were 51 participants.
OverallGrade = 52 – 0.521 × PStress + 0.01 × ConfidenceStart + 0.401 × PredictedGrade +
Coefficient |
Estimated value |
SE |
T |
df |
p-value |
Intercept |
52.5 |
13.41 |
n/a |
47 |
n/a |
PStress |
–0.521 |
0.380 |
–1.37 |
47 |
0.174 |
ConfidenceStart |
0.010 |
0.067 |
0.15 |
47 |
0.882 |
PredictedGrade |
0.401 |
0.147 |
2.72 |
47 |
0.008 |
Are any of the variables a significant predictor of OverallGrade? PredictedGrade