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):
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