# Liberty university educ 750 quiz 3

Liberty University EDUC 750 QUIZ 3
EDUC 750 QUIZ 3
·         Question 1
3 out of 3 points
In the ex post facto control group design, participants decide themselves whether to join the control or treatment group.
·         Question 2
3 out of 3 points
Christopher Brown’s (2009) study examining the disconnect between prekindergarten and elementary school teaching approaches was an example of a (n):
·         Question 3
3 out of 3 points
Subjects are not randomly assigned to the comparison and experimental groups in quasi-experimental design.
·         Question 4
3 out of 3 points
A major weakness of cross-sectional design is it:
·         Question 5
3 out of 3 points
Which of the following is NOT a characteristic of a true experiment?
·         Question 6
3 out of 3 points
All true experiments have a posttest.
·         Question 7
3 out of 3 points
A researcher who draws conclusions about individual-level processes from group-level data may be making a (n) _____ fallacy.
·         Question 8
3 out of 3 points
In a study examining the effects of ADHD medication on school children, the children who don’t receive the medication would be the _____ group.
·         Question 9
3 out of 3 points
Another term for trend study is:
·         Question 10
3 out of 3 points
Identification of the context in which a causal relationship occurs is a criterion for a valid causal relationship.
·         Question 11
3 out of 3 points
Matching is an effective substitute for randomization.
·         Question 12
3 out of 3 points
Nonequivalent control group design is a type of _____ design.
·         Question 13
3 out of 3 points
The _____ is computed by taking each score and subtracting the mean; then squaring the difference; then summing all these differences; then dividing this sum by the total number of scores.
·         Question 14
3 out of 3 points
Statistics used to describe the association among variables and to control for other variables are called:
·         Question 15
3 out of 3 points
The _____ indicates how sure we can be, given our particular random sample, that the value of some statistic in the population falls within a particular range.
·         Question 16
3 out of 3 points
Most measures of central tendency and variability are also inappropriate for qualitative variables.
·         Question 17
3 out of 3 points
A bar chart would be the best method of describing which variable?
·         Question 18
0 out of 3 points
Secondary analysis involves a substandard data set.
·         Question 19
3 out of 3 points
Which measure of central tendency would be most affected by a small number of extreme cases?
·         Question 20
3 out of 3 points
Level of measurement determines the appropriateness of a particular statistic.
·         Question 21
3 out of 3 points
The most frequent value in a distribution is the:
·         Question 22
3 out of 3 points
How we interpret and report statistics determines their usefulness.
·         Question 23
3 out of 3 points
_____ occurs when a researcher concludes there is a relationship between variables in a population when in fact there is none.
·         Question 24
3 out of 3 points
The concept of _____ is central to the ethical use of statistics.
·         Question 25
3 out of 3 points
An exceptionally high or low value in a distribution is referred to as a(n):

Liberty university educ 750 quiz 3

Liberty University EDUC 750 QUIZ 3
EDUC 750 QUIZ 3
·         Question 1
3 out of 3 points
In the ex post facto control group design, participants decide themselves whether to join the control or treatment group.
·         Question 2
3 out of 3 points
Christopher Brown’s (2009) study examining the disconnect between prekindergarten and elementary school teaching approaches was an example of a (n):
·         Question 3
3 out of 3 points
Subjects are not randomly assigned to the comparison and experimental groups in quasi-experimental design.
·         Question 4
3 out of 3 points
A major weakness of cross-sectional design is it:
·         Question 5
3 out of 3 points
Which of the following is NOT a characteristic of a true experiment?
·         Question 6
3 out of 3 points
All true experiments have a posttest.
·         Question 7
3 out of 3 points
A researcher who draws conclusions about individual-level processes from group-level data may be making a (n) _____ fallacy.
·         Question 8
3 out of 3 points
In a study examining the effects of ADHD medication on school children, the children who don’t receive the medication would be the _____ group.
·         Question 9
3 out of 3 points
Another term for trend study is:
·         Question 10
3 out of 3 points
Identification of the context in which a causal relationship occurs is a criterion for a valid causal relationship.
·         Question 11
3 out of 3 points
Matching is an effective substitute for randomization.
·         Question 12
3 out of 3 points
Nonequivalent control group design is a type of _____ design.
·         Question 13
3 out of 3 points
The _____ is computed by taking each score and subtracting the mean; then squaring the difference; then summing all these differences; then dividing this sum by the total number of scores.
·         Question 14
3 out of 3 points
Statistics used to describe the association among variables and to control for other variables are called:
·         Question 15
3 out of 3 points
The _____ indicates how sure we can be, given our particular random sample, that the value of some statistic in the population falls within a particular range.
·         Question 16
3 out of 3 points
Most measures of central tendency and variability are also inappropriate for qualitative variables.
·         Question 17
3 out of 3 points
A bar chart would be the best method of describing which variable?
·         Question 18
0 out of 3 points
Secondary analysis involves a substandard data set.
·         Question 19
3 out of 3 points
Which measure of central tendency would be most affected by a small number of extreme cases?
·         Question 20
3 out of 3 points
Level of measurement determines the appropriateness of a particular statistic.
·         Question 21
3 out of 3 points
The most frequent value in a distribution is the:
·         Question 22
3 out of 3 points
How we interpret and report statistics determines their usefulness.
·         Question 23
3 out of 3 points
_____ occurs when a researcher concludes there is a relationship between variables in a population when in fact there is none.
·         Question 24
3 out of 3 points
The concept of _____ is central to the ethical use of statistics.
·         Question 25
3 out of 3 points
An exceptionally high or low value in a distribution is referred to as a(n):