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Homework answers / question archive / Question 31 0 / 2 pts By employing randomization, the researcher ensures that one group is different than the other
Question 31
0 / 2 pts
By employing randomization, the researcher ensures that
one group is different than the other.
participants are manipulated at random.
any extraneous factor is as likely to affect one group as it is to affect the other.
All of these
0 / 2 pts
A researcher manipulates the amount of lighting in a workspace and then observes its effect on a group's productivity. This situation represents which element of inference of cause?
Temporal precedence
Covariation between variables
Elimination of possible causes
Environmental stability
0 / 2 pts
A measure has construct validity if it
measures what it is intended to measure.
is given to participants in a laboratory setting.
contains a large amount of true score.
All of these
0 / 2 pts
When you accept unquestionably what your own personal judgment tells you about the world, you are relying on _______.
skepticism
authority
intuition
scientific understanding
0 / 2 pts
A researcher observed that drinking coffee improved performance on complex math problems up to a point. The researcher also noted, however, that excessive coffee drinking actually interferes with problem solving. What type of relationship was observed?
Positive linear
Negative linear
Curvilinear
No relationship
0 / 2 pts
The statement, "Participants in quiet environments score consistently higher on math achievement tests than participants in noisy environments" is an example of ________ behavior; while the statement, "The difference between participants in quiet versus noisy rooms on math achievement scores occurs because there is less distraction in quiet rooms" is an example of ________ behavior.
explaining; determining the cause of
explaining; predicting
describing; determining the cause of
describing; predicting
0 / 2 pts
The American Psychological Association computer database that stores the contents of
Psychological Abstracts is
PsycINFO.
Psychological Abstracts.
Social Science Citation Index.
None of these
0 / 2 pts
Which section of a research article includes the interpretation of a study's findings?
Introduction
Method
Results
Discussion
0 / 2 pts
The Belmont Report's ethical principle of justice on the selection of participants requires
researchers limit studies only to those of legal age (e.g., 18 years or older).
participants be paid a fair and just wage for taking part in the research.
any decisions to include or exclude certain people from the research must be justified
on scientific grounds.
All of these
0 / 2 pts
When evaluating the claims of a scientist, we should do all of the following except _____________?
ask about the scientist's credentials
examine the funding source
be skeptical of pseudoscience
disregard applied research
0 / 2 pts
Observation of the world around us, is a good place to get ideas for research. Which of the following best illustrates a research idea that comes from the world around us?
the relationship of sexually degrading music lyrics and early sexual behaviors
using the theory of evolution to investigate a new problem
advancing work done by authors in 1988
Birds of a feather flock together
0 / 2 pts
The finding that a person's shoe size is not associated with their family income suggests
a positive linear relationship.
a negative linear relationship.
a curvilinear relationship.
no relationship.
0 / 2 pts
In Milgram's study on obedience, telling participants the purpose of the experiment was to study learning and memory was an example of
psychological stress.
deception.
informed consent.
debriefing.
0 / 2 pts
The experimental method eliminates the thirdvariable problem by
keeping extraneous variables constant.
randomly assigning participants to groups.
Both a and b
Neither a nor b
0 / 2 pts
Research by Blanchflower & Oswald (2008) found that both younger and older adults are happier than adults in their 40's. This relationship can best be described as a ______________?
positive correlation
negative correlation
curvilinear correlation
no correlation
0 / 2 pts
Which of the following is NOT a procedural option to deception?
Role-playing
Simulation studies
Psychodrama
Honest experiments
0 / 2 pts
When participants are categorized into groups based on some difference rather than through random assignment, this design is referred to as a(n) _____ design.
experimental method
ex post facto
participant
attribute
0 / 2 pts
When increases in the values of one variable are associated with both increases and decreases in the values of a second variable, what type of relationship is present?
Positive linear
Confounded
Curvilinear
Negative linear
0 / 2 pts
A researcher asks male and female participants to rate the desirability of potential neighbors on the basis of the potential neighbor's occupation. Which one of the following is a situational variable?
Gender of the research participant
Desirability ratings
Potential neighbor's occupation
All of these
0 / 2 pts
The scientific method differs from intuition and authority in that the scientific method
does not rely on accepting assertions set forth by others.
does not rely on one's own personal perceptions of the world.
provides an objective set of rules for gathering, evaluating, and reporting information.
All of these.
Question 31
0 / 2 pts
By employing randomization, the researcher ensures that
one group is different than the other.
participants are manipulated at random.
Correct Answer
any extraneous factor is as likely to affect one group as it is to affect the other.
All of these
0 / 2 pts
A researcher manipulates the amount of lighting in a workspace and then observes its effect on a group's productivity. This situation represents which element of inference of cause?
Correct Answer
Temporal precedence
Covariation between variables
Elimination of possible causes
Environmental stability
0 / 2 pts
A measure has construct validity if it
Correct Answer
measures what it is intended to measure.
is given to participants in a laboratory setting.
contains a large amount of true score.
All of these
0 / 2 pts
When you accept unquestionably what your own personal judgment tells you about the world, you are relying on _______.
skepticism
authority
Correct Answer
intuition
scientific understanding
0 / 2 pts
A researcher observed that drinking coffee improved performance on complex math problems up to a point. The researcher also noted, however, that excessive coffee drinking actually interferes with problem solving. What type of relationship was observed?
Positive linear
Negative linear
Correct Answer
Curvilinear
No relationship
0 / 2 pts
The statement, "Participants in quiet environments score consistently higher on math achievement tests than participants in noisy environments" is an example of ________ behavior; while the statement, "The difference between participants in quiet versus noisy rooms on math achievement scores occurs because there is less distraction in quiet rooms" is an example of ________ behavior.
explaining; determining the cause of
explaining; predicting
Correct Answer
describing; determining the cause of
describing; predicting
0 / 2 pts
The American Psychological Association computer database that stores the contents of
Psychological Abstracts is
Correct Answer
PsycINFO.
Psychological Abstracts.
Social Science Citation Index.
None of these
0 / 2 pts
Which section of a research article includes the interpretation of a study's findings?
Introduction
Method
Results
Correct Answer
Discussion
0 / 2 pts
The Belmont Report's ethical principle of justice on the selection of participants requires
researchers limit studies only to those of legal age (e.g., 18 years or older).
participants be paid a fair and just wage for taking part in the research.
Correct Answer
any decisions to include or exclude certain people from the research must be justified
on scientific grounds.
All of these
0 / 2 pts
When evaluating the claims of a scientist, we should do all of the following except _____________?
ask about the scientist's credentials
examine the funding source
be skeptical of pseudoscience
Correct Answer
disregard applied research
0 / 2 pts
Observation of the world around us, is a good place to get ideas for research. Which of the following best illustrates a research idea that comes from the world around us?
Correct Answer
the relationship of sexually degrading music lyrics and early sexual behaviors
using the theory of evolution to investigate a new problem
advancing work done by authors in 1988
Birds of a feather flock together
0 / 2 pts
The finding that a person's shoe size is not associated with their family income suggests
a positive linear relationship.
a negative linear relationship.
a curvilinear relationship.
Correct Answer
no relationship.
0 / 2 pts
In Milgram's study on obedience, telling participants the purpose of the experiment was to study learning and memory was an example of
psychological stress.
Correct Answer
deception.
informed consent.
debriefing.
0 / 2 pts
The experimental method eliminates the thirdvariable problem by
keeping extraneous variables constant.
randomly assigning participants to groups.
Correct Answer
Both a and b
Neither a nor b
0 / 2 pts
Research by Blanchflower & Oswald (2008) found that both younger and older adults are happier than adults in their 40's. This relationship can best be described as a ______________?
positive correlation
negative correlation
Correct Answer
curvilinear correlation
no correlation
0 / 2 pts
Which of the following is NOT a procedural option to deception?
Role-playing
Simulation studies
Correct Answer
Psychodrama
Honest experiments
0 / 2 pts
When participants are categorized into groups based on some difference rather than through random assignment, this design is referred to as a(n) _____ design.
experimental method
Correct Answer
ex post facto
participant
attribute
0 / 2 pts
When increases in the values of one variable are associated with both increases and decreases in the values of a second variable, what type of relationship is present?
Positive linear
Confounded
Correct Answer
Curvilinear
Negative linear
0 / 2 pts
A researcher asks male and female participants to rate the desirability of potential neighbors on the basis of the potential neighbor's occupation. Which one of the following is a situational variable?
Gender of the research participant
Desirability ratings
Correct Answer
Potential neighbor's occupation
All of these
0 / 2 pts
The scientific method differs from intuition and authority in that the scientific method
does not rely on accepting assertions set forth by others.
does not rely on one's own personal perceptions of the world.
provides an objective set of rules for gathering, evaluating, and reporting information.
Correct Answer
All of these.
