O question 11 1 out of 1 points the formula for the

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o Question 11 1 out of 1 points The formula for the lower bound of a confidence interval for a single-sample t test is M lower = – t ( s M ) + M sample Answers: . Selected Answer: True True False
o Question 12 1 out of 1 points What would be the decision for the following paired-samples t test: t(24) = 1.11, p > 0.05?
o Question 13 1 out of 1 points The formula for the degrees of freedom for the dependent-samples t test is:
o Question 14 1 out of 1 points What is the mean of the difference scores for the following difference scores: 8, 3, 4.5, 7, 11.1, 9?
Answers:
o Question 15 1 out of 1 points As degrees of freedom decrease, the critical cutoffs for the t test statistic decrease. Answers: Selected Answer: False True False
o Question 16 1 out of 1 points A study by Bettmann (2007) published in the Journal of the American Psychoanalytic Association assessed whether the attachment relationships between adolescents and their parents change as a result of a residential wilderness treatment experience for the adolescents. Participants completed the Adolescent Attachment Questionnaire at the start and at the end of the wilderness program. Which statistical test should be used to determine whether the wilderness treatment affected attachment relationships?
o Question 17 1 out of 1 points A researcher studies 45 volunteer citizens from a small community and asks them about the amount of caffeine (in milligrams) they ingest before and after lunch each day. Two measures are taken from each participant for a total of 90 data points. The degrees of freedom for this paired-samples study are:
o Question 18 0 out of 1 points In a paired-samples test, the comparison distribution is a distribution of:
o Question 19 1 out of 1 points A sample of 20 with a standard deviation of 102.33 results in a standard error calculated as 23.48. Answers: Selected Answer: False True False

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