HELP I"M TAKING A TIMED HOMEWORK ASSIGNMENT AND I NEED HELP WITH THESE QUESTIONS DUE IN 30 MINS!!!!

1.)Why can't a researcher just run multiple t tests when the independent variable has more than two levels?

1a.)As you run more statistical tests, it becomes harder and harder to reject the null hypothesis.

1b.)As you run more statistical tests, the probability that you will make a Type I error in one of the tests increases.

1c.)As you run more statistical tests, you lose degrees of freedom.

1d.)As you run more statistical tests, the probability that you will make a Type III error in one of those tests increases.

2.)The symbol for variance in ANOVA is:

2a.)s2, which stands for standard deviation squared.

2b.)MS, which stands for mean squared.

2c.)SD2 , which stands for standard deviation squared.

2d.)SS, which stands for sum of squares.

3.)In addition to assessing whether each independent variable has an effect on the dependent variable, a factorial ANOVA also allows you to:

3a.)use multiple dependent measures in a single analysis.

3b.)control for a third variable that might be related to the dependent measure, prior to investigating the independent variable of interest.

3c.)determine whether the effects of one factor depend on the other factor.

3d.)partition out the variability due to individual differences and the variability due to measurement error.

4.)A social psychologist wants to test whether introverts and extroverts have different numbers of friends on a social networking site. She administers a personality test and, based on the results, divides the participants into 2 groups, Introverts and Extroverts. She then surveys the groups to find out how many friends they have recorded on the social networking site. Which type of t-test should she use to analyze the results?

4a.)independent-samples t test

4b.)one-sample t test

4c.)paired-samples t test

4d.)It doesnt matter, any of them should work.

5.)A community psychologist observes that children in a certain school tend to score lower on standardized math tests than students at other schools in the district. He knows that the mean scores of children in the district as a whole is 110. Which type of t-test should he use to determine whether the scores of the children in the school differ significantly from the scores in the school district overall?

5a.)independent-samples t test

5b.)one-sample t test

5c.)paired-samples t test

5d.)none of the above

6.)Difference scores are computed for

6a.)an independent-samples t test.

6b.)a one-sample t test.

6c.)a paired-samples t test.

6d.)none of the above