PSYCHOLOGYTHIRTEENTHEDITION
David G. Myers & C. Nathan DeWall
,Chapter 1: Thinking Critically with Psychological Scienc
e Myers: PsychologyA13thAEdition
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 resultsmay
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 r
e searchers 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 administere
d the MMRAvaccination 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 shar
e 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" i
s 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 activi
t yand academic performance among children. He is most likely to use
to determine if a relationshipexists.
meta-analysis
preregistration
a correlation coefficient
experimental research
The tendency to perceive order in random events often leads to overestimating the value o
f 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 betwee
n 3 and +3standard 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 testabl
e assumptions.
correlations.
predictions.
variables.
Several weeks after a political election, voters often exaggerate their ability to have predicted the electiono
utcome. 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 ofr
esearch participants and to different circumstances is called
replication.
random sampling.
naturalistic observation.
the double-blind procedure.
What0was0the0Oxford0English0Dictionary's0word0of0the0year0in02017?0f
alse0news
preregistration
0post-
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n
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loss0pill0know0which0participants0haveactually0received0a0drug0designed0to0help0weight0loss0and0which0
ha0ve0received0a0placebo.0This0investigationinvolves0the0use0of
naturalistic0observation.
0random0sampling.
the0double-
blind0procedure.0replication.
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esteem0and0physical0appearance0would0enable0you0to0mostaccurately0predict0physical0appearance0from0kno
wl0edge0of0level0of0self-esteem?
+.60
+.01
–.10
–.06
When0we0ask,0for0example,0how0closely0related0are0the0intelligence0scores0of0fraternal0twins,0we0are0askin
gh0ow0strongly0two are0related.
experimental0groups
0control0groups0vari
ables0 scatterplots
When0you0read0a0bar0graph,0it0is0most0important0for0you
0t0 o0mentally0transform0the0data0into0a0normal0curve
.
identify0the0value0of0the0standard0deviatio
n.0note0the0range0and0size0of0the0scale0val