Complete Solutions
-Independent
-Dependent Correct Answers The (independent/ dependent)
variable is manipulated or controlled and the (independent/
dependent) variable is measured to determine the effect.
-Independent variable: Levels of exercise postpartum
-Dependent variable: Weight retention Correct Answers
"Women who have lower levels of exercise postpartum will be
associated with greater weight retention."
-What is the independent variable?
-What is the dependent variable?
-Population: Alcoholic mothers and nonalcoholic mothers
-IV: Alcohol intake by mother
-DV: Birth weight
-Simple Correct Answers "Birth weight is lower among infants
of alcoholic mothers than among infants of nonalcoholic
mothers"
-Population?
-IV?
-DV?
-Simple or complex?
,-Population: Pregnant women
-IV: Type of birth (c section vs. vaginal)
-DV: Postpartum depression and feelings of inadequacy
-Complex Correct Answers "More postpartum depression and
feelings of inadequacy are reported by women who give birth by
cesarean section than those who deliver vaginally"
-Population?
-IV?
-DV?
-Simple or complex?
????? Correct Answers What is the most common test for
internal consistency of an instrument?
A. Cronbach's alpha
B. Split-half reliability
C. Kuder-Richardson (KR-20) coefficient
D. Equivalence
14 years
(in California, if emancipated; 16 if emancipated in other states)
Correct Answers At what age can children give sole consent to
research?
2 Correct Answers An experimental study in which subjects
were randomly selected is an example of what level of study?
, A. Biased Correct Answers Selection of 300 subjects yields a
sample, but demographic analysis of that sample reveals that
there are 99 teachers in the sample, despite the fact that there are
far fewer than 33% teachers in the total sample. The sample can
be said to be
A. Biased
B. Controlled
C. Unbiased
D. Based on probability
A. Concealment without intervention Correct Answers Which
type of observation is being used in the following scenario?
A researcher uses a one-way mirror to observe interactions of
caregivers and infants who have feeding problems.
A. Concealment without intervention
B. No concealment without intervention
C. Concealment with intervention
D. No Concealment with intervention
A. Content Correct Answers What measure used to test an
instrument's validity is where an expert panel of judges are
asked to indicate their agreement with the items and whether
they represent what is being measured?
A. Content
B. Criterion
C. Construct
D. Face