1. Unit 6 Quiz: Review questions

2. Can you explain your answer?
Use your fingers to indicate your answer: 1=A, 2=B, 3=C, 4=D.
After viewing the question, show me your answer in 15 seconds.
Next, turn to your neighbor and you have one minute to convince him/her that you are right.

3. Some scholars found that secular countries (e. g
Some scholars found that secular countries (e.g. Netherlands, Germany) have a lower HIV rate and teenage pregnancy rate than religious nations (e.g. USA), and they concluded that religiosity is detrimental to national well-being. This example is:
Above-average fallacy.
Ecological fallacy: infer from summary- level data to individuals.
Leaping from correlation to causation
Both B and C.

4. In the equation y = a + bx, what is a?
intercept
constant
Starting point
All of the above

5. In the equation y = a + bx, what is b?
Slope
Regression coefficient
Beta weight
All of the above

6. How can we get the best fit line in a regression model?
Rise/Run
Run/rise
The least sum of squared residuals.
The least parameter estimates

7. What is R-square? Variance explained Strength of determination
Coefficient explained
A and B

8. What is the possible range of R-square?
-1 to 1
1 to 10
0 to 1

9. Which of the following statements is/are true?
In correlation there is no distinction between DV and IV, or cause and effect.
Regression of Y by X is not the same as regression of X by Y.
Rise /run is the same as run/rise.
A and B

10. Which of the following statements is true?
Because regression is a linear model, we can say that ina positive relationship whenever X goes up, Y increases.
Regression means falling back or going down.
Tall parents might have short children and short parents might have tall children.
All of the above