LATG Chapter 18 questions with
answers.
If results from a study can be replicated in some animal studies but not in others, the study lacks:
A. power.
B. objectivity.
C. generality.
D. accuracy. ANS -C
True/False: Blind assessment is an effective method of avoiding bias. ANS -True
True/False: When a sample group shows no effect, although the treatment would actually have a real
effect on the whole population, the study has produced false negative results. ANS -True
True/False: A group of test subjects in a research study is used as a sample to draw conclusions about an
entire population. ANS -True
True/False: An experimental hypothesis is a statement of the answer an investigator expects to find to a
research question. ANS -True
An experimental hypothesis is a _________________ of the results of the study.
A. calculation
B. review
C. prediction
D. description ANS -C
True/False: The independent variable is the variable that is measured during the study. ANS -False
True/False: Some sources of nonexperimental variation cannot be controlled. ANS -True
, In a study that attempts to determine if using treats to elicit a desired behavior (move through a tunnel
to a new cage) helps the rats learn the behavior more quickly, what is the dependent variable?
A. Time taken to reach new cage
B. The tunnel
C. The number of rats using the tunnel
D. The treats ANS -A
Confounding variables are known as:
A. independent variables.
B. randomized variables.
C. nonexperimental variables.
D. treatment effects. ANS -C
The _______ is the number of experimental units in a group.
A. population
B. confidence level
C. sample size
D. standard deviation ANS -C
In a study that attempts to determine if using treats such as pieces of carrots to elicit a desired behavior
in rats (move through a tunnel to a new cage) will help the rats learn the behavior more quickly, what is
the independent variable?
A. The treats
B. The tunnel
C. The observed behavior
D. The number of rats using the tunnel ANS -A
Unexpected differences within subjects can be controlled by:
A. randomization
answers.
If results from a study can be replicated in some animal studies but not in others, the study lacks:
A. power.
B. objectivity.
C. generality.
D. accuracy. ANS -C
True/False: Blind assessment is an effective method of avoiding bias. ANS -True
True/False: When a sample group shows no effect, although the treatment would actually have a real
effect on the whole population, the study has produced false negative results. ANS -True
True/False: A group of test subjects in a research study is used as a sample to draw conclusions about an
entire population. ANS -True
True/False: An experimental hypothesis is a statement of the answer an investigator expects to find to a
research question. ANS -True
An experimental hypothesis is a _________________ of the results of the study.
A. calculation
B. review
C. prediction
D. description ANS -C
True/False: The independent variable is the variable that is measured during the study. ANS -False
True/False: Some sources of nonexperimental variation cannot be controlled. ANS -True
, In a study that attempts to determine if using treats to elicit a desired behavior (move through a tunnel
to a new cage) helps the rats learn the behavior more quickly, what is the dependent variable?
A. Time taken to reach new cage
B. The tunnel
C. The number of rats using the tunnel
D. The treats ANS -A
Confounding variables are known as:
A. independent variables.
B. randomized variables.
C. nonexperimental variables.
D. treatment effects. ANS -C
The _______ is the number of experimental units in a group.
A. population
B. confidence level
C. sample size
D. standard deviation ANS -C
In a study that attempts to determine if using treats such as pieces of carrots to elicit a desired behavior
in rats (move through a tunnel to a new cage) will help the rats learn the behavior more quickly, what is
the independent variable?
A. The treats
B. The tunnel
C. The observed behavior
D. The number of rats using the tunnel ANS -A
Unexpected differences within subjects can be controlled by:
A. randomization
