Can someone check this for me?

1. The two branches of statistical methods are


a. theoretical and inferential.


b. intuitive and observational.


c. descriptive and intuitive.


*d. descriptive and inferential.





2. Which of the following was a behavioral psychologist who was opposed to the use of statistics in psychology?


a. Cohen.


b. McCracken.


c. Cronbach.


*d. Skinner.





3. Sixty years ago, opinion polls often used the _(*quota sampling*) method of sampling, which is now largely discredited.





4. How do you set up a hypothesis testing problem?


a. You set it up to test what you predict will happen.


*b. You set it up to test the opposite of what you predict will happen.


c. You set up two problems, one to test what you predict and the other to test the opposite.


d. You set up a test that assumes the two populations are different, regardless of whether that is what you predict or not.





5. As the number of people in each sample gets larger, the distribution of means


a. begins to look less and less like the normal curve.


*b. becomes a better approximation of the normal curve.


c. becomes more positively skewed.


d. becomes more negatively skewed.





6. In studies using a very large number of participants, it is common to get statistically significant results that have a very small _(*p value*)________.





7. If a sample has 27 people in it, the degrees of freedom used in the formula to estimate the population variance would be


*a. 26


b. 27


c. 272


d. 茂茠鈥?7





8. All of the following are true for both the t test for independent means AND the t test for dependent means, EXCEPT


a. population variances are estimated from the information in the sample of scores actually studied.


b. pretest-posttest experimental designs are common.


c. the population means are unknown.


*d. the sample scores (in some form) are eventually compared to a t distribution.





9. To test the null hypothesis that three populations have equal means, you carry out a(n) (*between-groups estimate of the population variance.*)





10. A consumer psychologist is interested in the effects of Annual Income and Motivations to Shop on shopping patterns of consumers. Annual Income (broken into two levels: High and Moderate) and Motivation to Shop (with three levels: Escape, Necessity, and Socializing) are considered in one study. How many cells will there be?


a. 2.


*b. 3.


c. 4.


d. 6.





11. The dots on a scatter diagram seem to form a straight line that goes upward to the right. This situation is called


*a. a positive linear correlation.


b. a negative linear correlation.


c. a curvilinear correlation.


d. no correlation.





12. You want to predict college grades from high school grades. College grades are the


a. predictor variable.


*b. criterion variable.


c. independent variable.


d. causal variable.





13. A contingency table is a table in which


*a. the distributions of two nominal variables are laid out so that you have the frequencies of their combinations as well as the totals.


b. chi-squares for each category are displayed over each level of the predictor variable.


c. F distributions are translated into t distributions.


d. 茂聛拢2 distributions are translated into F distributions.





14. In a square-root transformation,


a. high numbers become lower, and low numbers become higher.


b. moderate numbers remain unchanged, but low numbers become slightly higher.


c. low numbers become much lower, but high numbers remain basically unchanged.


*d. moderate numbers become only slightly lower, but high numbers become much lower.





15. A problem with using _(*test re-test*) reliability for a test of knowledge (such as a vocabulary test) is that when people take it the second time, their performance is likely to be different as a result of having taken the test once|||Please write in a way so that other people can understand what you actually mean. This Q sounds a bit confused so it is hard to give an exact answer.