A researcher compares the frequency of participants who sleep primarily on their stomach, back, or side during the night. What is the critical value for a chi-square goodness-of-fit test at a .05 level of significance?
A) 2
B) 3
C) 3.84
D) 5.99
Ans: D) 5.99
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Which of the following is a disadvantage of using factorial designs versus single-factor designs?
a. Factorial designs allow for the opportunity to determine whether independent variables combine or interact to influence the dependent variable. b. Testing and interpreting effects in a factorial research design is more complicated than single-factor designs. c. Factorial designs allow researchers to determine whether interaction effects are present among independent variables. d. Factorial designs have the ability to study multiple effects in one study.
Which is NOT a way a chromosome disorder is created?
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A narrative description, specimen record, and running record are the same type of observation method
Indicate whether the statement is true or false.