If results are statistically significant but have a small effect size, the results may
lack practical significance.
lack a cause-effect relationship.
represent a negative relationship.
represent a neutral relationship.
In one study, introductory psychology students were fitted with electronica...
MULTIPLE CHOICE
Indicate the answer choice that best completes the statement or answers the question.
If results are statistically significant but have a small effect size, the results may
lack practical significance.
lack a cause-effect relationship.
represent a negative relationship.
represent a neutral relationship.
In one study, introductory psychology students were fitted with electronically activated recorders so that
researchers could sample their daily activities. The researchers were employing a scientific method known as
naturalistic observation.
the double-blind procedure.
experimentation.
the case study.
Studies conducted in the late 1990s in which the researcher concluded that children who were administered
the MMR vaccination developed autism were
withheld from the public intentionally.
accurate.
never published by academic journals.
discovered to be fraudulent.
Seven members of a boys' club reported the following individual earnings from their sale of cookies: $2, $9,
$8, $10, $4, $9, and $7. In this distribution of individual earnings
the median is greater than the mean and greater than the mode.
the median is less than the mean and less than the mode.
the median is greater than the mean and less than the mode.
the median is less than the mean and greater than the mode.
Professor Valetta believes that identical twins have similar levels of intelligence largely because they share
common genes. His idea is best described as a(n)
theory.
replication.
naturalistic observation.
operational definition.
The idea that "people's emotions and personal beliefs often override their acceptance of objective facts" is
expressed in the dictionary definition of
false news.
, post-truth.
powerful examples.
repetition.
Professor Terrance has conducted a study that examined the relationship between level of physical
activityand academic performance among children. He is most likely to use to determine if a relationship
exists.
meta-analysis
preregistration
a correlation coefficient
experimental research
The tendency to perceive order in random events often leads to overestimating the value of
common sense.
operational definitions.
informed consent.
the double-blind procedure.
Dr. Carlson wants to conduct a research study that will examine the sexual behaviors of college students.
Before she can begin data collection she must submit her research proposal to
her institution's review board.
the APA.
the BPS.
her department chair for review.
Approximately what percentage of the cases represented by the normal curve fall between 3 and +3
standard deviations from the mean?
34
68
95
d. 100
Unconscious gut feelings, or , provide(s) a sharp contrast to explicit, conscious reasoning.
theory
chance-based explanation
common sense
naturalistic observation
The explanatory power of a scientific theory is most closely linked to its capacity to generate testable
assumptions.
correlations.
predictions.
variables.
Several weeks after a political election, voters often exaggerate their ability to have predicted the election
outcome. This best illustrates
, the placebo effect.
random assignment.
wording effects.
hindsight bias.
Repeating the essence of a previous research study to verify whether its findings extend to a new group of
research participants and to different circumstances is called
replication.
random sampling.
naturalistic observation.
the double-blind procedure.
What was the Oxford English Dictionary's word of the year in 2017?
false news
preregistration
post-truth
repetition
Neither the researchers nor the participants in a study of a weight-loss pill know which participants have
actually received a drug designed to help weight loss and which have received a placebo. This investigation
involves the use of
naturalistic observation.
random sampling.
the double-blind procedure.
replication.
Which of the following correlations between self-esteem and physical appearance would enable you to most
accurately predict physical appearance from knowledge of level of self-esteem?
a. +.60
b. +.01
c. –.10
d. –.06
When we ask, for example, how closely related are the intelligence scores of fraternal twins, we are asking
how strongly two are related.
experimental groups
control groups
variables
scatterplots
When you read a bar graph, it is most important for you to
mentally transform the data into a normal curve.
identify the value of the standard deviation.
note the range and size of the scale values.
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