Which of the following methods provides information about past trends?
a) historical
b) correlational
c) experimental
d) descriptive
Hypothesis testing is a type of inferential statistics. The inference is about
a. characteristics of a sample based on information about the population.
b. probabilities of several specific data points.
c. the amount of variability within groups.
d. characteristics of a population based on sample data.
The one-group posttest-only design includes all the following faults EXCEPT
a. the treatment condition is given to all research participants.
b. the participants' motive of positive self-presentation affects the independent variable.
c. there are no controls for extraneous variables.
d. there is no control group for a comparison.
Sampling allows researchers to overcome the problem of which of the following?
a) overcrowded laboratories
b) biased subject response
c) not having access to the whole population
d) not having access to the proper statistical methods
What is a characteristic of quasi-experimental research?
a) does not establish cause and effect relationships
b) assignment to groups based on some pre-determined characteristic
c) has the highest degree of control over the factors being examined
d) assignment to groups is random in nature
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