PSYC 210 Midterm: 210 Midterm Q's

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Psychology 210: Post – Midterm Review Questions
Correlation
1. What questions do correlation test?
2. What graph do you use for 2 qualitative variables?
1 quantitative and 1 qualitative variable?
2 quantitative variables?
3. Draw and explain what a positive, negative, and curvilinear association is
4. What is covariance?
What do the values range between?
What does the sign and value indicate?
5. How do you calculate covariance?
6. What is correlation?
What do the values range between?
7. How do you calculate correlation coefficient/The Pearson Product Moment?
8. What are some influences on the Pearson product moment? (5)
9. What are the degrees of freedom for correlation hypothesis testing?
10. What is the symbol called?
11. What is the estimate of standard deviation of the sampling distribution of r?
Sampling Distributions and Hypothesis Testing
1. What is a sampling distribution?
2. What is a statistic?
3. What is the central limit theorem?
What is the sampling distribution of a population vs. a sample?
4. Draw out a decision table
Label alpha, 1-alpha, beta, 1 – beta, and power
Hypothesis Testing on One Mean
1. What formula do you use if the population variance is known? Unknown?
2. What are the degrees of freedom used?
3. What are the factors influencing the magnitude of t or z observed?
Hypothesis Testing on Two Related Samples
1. What formula do you use if the population variance is known? Unknown?
Hypothesis Testing on Independent Samples
1. What formula do you use if you assume homogeneity of variables?
What degree of freedom do you use?
2. What formula do you use if you do NOT assume homogeneity of variables?
What degree of freedom do you use?
3. What is the formula for critical intervals for independent samples?
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