Question

what are the difference scores with respect to the correlated-group T Test and how are different...

what are the difference scores with respect to the correlated-group T Test and how are different scores C's
calculated?

And when calculating the correlated-groups T-Test, why does the numerator for the equation involve subtracting zero from the mean of the difference score?

Correction : What are difference scores with respect to the correlated-group T- Test and how are difference scores calculated?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Discuss how the t-test for correlated groups and the t-test for single samples are alike and...
Discuss how the t-test for correlated groups and the t-test for single samples are alike and different.
Compute the observed statistic for a correlated groups t-test to evaluate the difference in vocabulary scores...
Compute the observed statistic for a correlated groups t-test to evaluate the difference in vocabulary scores for a sample of children pre- and post-training. Be sure to keep the values in the given order. [Pre-: 4, 2, 4, 5, 5, 6, 4, 4, 2; Post-: 5, 2, 6, 6, 7, 5, 4, 5, 7]
Given the mean of the difference scores is 7.0, standard deviation of the difference scores is...
Given the mean of the difference scores is 7.0, standard deviation of the difference scores is 2.8, and there were 25 in the sample, solve for the following problems, showing all work to receive full credit: 6) Solve for the standard error of the difference scores: Work: Answer: 7) Calculate the correlated-groups t test to determine the tobt. Work: Answer: 8) If this is a non-directional test, what is the t cv? (No work needed) Answer: Identify the statistical test...
Mary, the counselor, wants to test whether there is any meaningful difference in depression scores among...
Mary, the counselor, wants to test whether there is any meaningful difference in depression scores among women and men clients of hers. She has 13 women clients and 14 men clients. The mean depression score of men clients is 4.5, while that of women is 5.3. The pooled standard error is 0.5 of the two groups. Is there any gender difference in depression levels among her women and men clients? Indicate the null and research hypothesis. What test do you...
A researcher performed a independent sample t test to test whether population mean of one group...
A researcher performed a independent sample t test to test whether population mean of one group is more than the the other. After taking random sample from both groups he calculated the p-value. It was 0.0345. He changed his mind and decided to test for difference of means in two populations. What is the new p- value? a. 0.0345 b. 0.01725 c. 0.069 d. Cannot determine from given information.
Below are two sets of gain scores of two different groups. I know that there is...
Below are two sets of gain scores of two different groups. I know that there is a statistical significance between the two when running an independent t-test; I already have this data set. I need to know whether one group has a statistical significance of benefiting more or is more beneficial than the other. I know this would be a one tailed t-test. However, I’m unsure how to perform this or interpret the data. Group 1 Group 2 Gain Score...
1. Which of the following is a major difference between a hypothesis test with a t...
1. Which of the following is a major difference between a hypothesis test with a t statistic and the test with a z-score? a. You must know the population standard deviation for the z-score but not for the t statistic. b. You use the normal distribution table to find critical values for t but not for z. c. You must know the population median for the z-score but not for the t statistic. d. There are no major differences between...
A group of high school seniors took a scholastic aptitude test. The resulting math scores had...
A group of high school seniors took a scholastic aptitude test. The resulting math scores had a mean 517.7 with a standard deviation of 173.2​, verbal scores had a mean 499.8 with a standard deviation of 130.8​, and the correlation between verbal and math scores was r=0.574. Answer the questions below. ​a) What is the​ correlation? The correlation is _ ? ​(Round to three decimal places as​ needed.) ​b) Write the equation of the line of regression predicting verbal scores...
For questions 1 through 3 state the proper t-test (one sample, paired samples, independent samples) that...
For questions 1 through 3 state the proper t-test (one sample, paired samples, independent samples) that should be used to evaluate the research question: (*Just state the test) 1) A developmental psychologist wants to determine if a recently created computer training program can increase the working memory ability of high-school students. A sample of 40 students are given the reverse digit span test at the beginning of the school year and then again after 4 weeks of training. Are there...
when doing a two sample t test, is the sample dofference different from the difference of...
when doing a two sample t test, is the sample dofference different from the difference of the means? example, if the mean age of death is 73 and the mean age of survival is 62...what would be the didference of the means (11?) and would this be the same for the sample difference? there are 51 subjects in the death category and 49 in the survival category (2? for sampel difference?)