or
Don’t have an account? Sign up
or
Sign up with Google or Facebook
or
By signing up I agree to StudyBlue's
Terms of Use and Privacy Policy
Already have an account? Log in
What is the mean for the following sample of scores?
Scores: 1, 2, 5, 4
What is the value of (ΣX)² for the follwing scores?
Scores: 3, 0, 5, 2
What is the median for the following set of scores?
Scores: 1, 2, 5, 6, 17
64 %
(.80)²
μ = 60 and σ = 5.
*The distribution just shifts
σ = 1.00
*SD is always 1.00 for z-scores
s = 2
s = √4 = 2
Which set of test scores has the smallest standard deviation?
A. 11, 17, 31, 53
B. 5, 11, 42, 22
C. 145, 143, 145, 147
D. 27, 105, 10, 80
For which of the following situations would a repeated-measures research design be appropriate?
A. Comparing verbal skills for girls vs. boys at age 3
B. Comparing pain tolerance before and after taking a new pain medication
C. Comparing self-esteem for students who participate in school athletics vs. those who do not
D. Comparing problem solving skills for science majors versus art majors at a college.
n = 30
*5 people per cell, 6 cells
Which of the following Pearson Correlations shows the greatest strength or consistency of relationship?
A. -0.90
B. +0.74
C. +0.85
D. -0.33
For which of the following situations would a repeated-measures design have the maximum advantage over an independent-measures design?
0
*z-score mean is always 0.
2
*# of conditions - 1
Scores from a statistics exam are reported as deviations scores. Which of the following deviation scores indicates a higher position in the class distribution?
A. +8
B. 0
C. -8
D. cannot determine without more information
A researcher conducts an experiment to determine whether moderate doses of St. John's Wort have any effect on memory for college students. For this study, what is the independent variable?
"StudyBlue is great for studying. I love the study guides, flashcards, and quizzes. So extremely helpful for all of my classes!"
Alice, Arizona State University
"I'm a student using StudyBlue, and I can 100% say that it helps me so much. Study materials for almost every subject in school are available in StudyBlue. It is so helpful for my education!"
Tim, University of Florida
"StudyBlue provides way more features than other studying apps, and thus allows me to learn very quickly! I actually feel much more comfortable taking my exams after I study with this app. It's amazing!"
Jennifer, Rutgers University
"I love flashcards but carrying around physical flashcards is cumbersome and simply outdated. StudyBlue is exactly what I was looking for!"
Justin, LSU