PSYC 3990 EXAM
1REVIEW OF KEY
QUIZZES, AND
PRACTICE
QUESTIONS FOR
GUARANTEED
SUCCESS / NEWEST
2025/2026.
, variance sample
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2 of 65
Definition
the numbers that separate the data into quarters; quartiles may or may
not be part of the data. The second quartile is the median of the data.
Give this one a try later!
interquartile range median
outlier quartiles
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3 of 65
Definition
a method for selecting a random sample; list the members of the
population. Use simple random sampling to select a starting point in
the population. Let k = (number of individuals in the
population)/(number of individuals needed in the sample). Choose
every kth individual in the list starting with the one that was randomly
,selected. If necessary, return to the beginning of the population list to
complete your sample.
Give this one a try later!
stratified sampling systematic sampling
convenience sampling cluster sampling
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4 of 65
Definition
two data sets that have a one to one relationship so that:
•both data sets are the same size, and
•each data point in one data set is matched with exactly one point
from the other set.
Give this one a try later!
paired data set cluster sampling
sampling error informed consent
, Don't know?
5 of 65
Definition
a data representation in which grouped data is displayed along with
the corresponding frequencies
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outlier histogram
frequency polygon frequency table
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6 of 65
Definition
the dependent variable in an experiment; the value that is measured
for change at the end of an experiment
Give this one a try later!
1REVIEW OF KEY
QUIZZES, AND
PRACTICE
QUESTIONS FOR
GUARANTEED
SUCCESS / NEWEST
2025/2026.
, variance sample
Don't know?
2 of 65
Definition
the numbers that separate the data into quarters; quartiles may or may
not be part of the data. The second quartile is the median of the data.
Give this one a try later!
interquartile range median
outlier quartiles
Don't know?
3 of 65
Definition
a method for selecting a random sample; list the members of the
population. Use simple random sampling to select a starting point in
the population. Let k = (number of individuals in the
population)/(number of individuals needed in the sample). Choose
every kth individual in the list starting with the one that was randomly
,selected. If necessary, return to the beginning of the population list to
complete your sample.
Give this one a try later!
stratified sampling systematic sampling
convenience sampling cluster sampling
Don't know?
4 of 65
Definition
two data sets that have a one to one relationship so that:
•both data sets are the same size, and
•each data point in one data set is matched with exactly one point
from the other set.
Give this one a try later!
paired data set cluster sampling
sampling error informed consent
, Don't know?
5 of 65
Definition
a data representation in which grouped data is displayed along with
the corresponding frequencies
Give this one a try later!
outlier histogram
frequency polygon frequency table
Don't know?
6 of 65
Definition
the dependent variable in an experiment; the value that is measured
for change at the end of an experiment
Give this one a try later!
