Quantitative Research Quiz 3.docx

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Liberty University *

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Psychology

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Feb 20, 2024

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Question 1 3 / 3 pts An explanation of some characteristic, attitude, or behavior of groups, individuals, or other entities, or of events is called a(n): cause. antiphon. elucidation. method. Question 2 3 / 3 pts Another term for trend study is: developmental design. pattern study. test-retest analysis. repeated cross-sectional design. Question 3 3 / 3 pts Nonequivalent control group design is a type of _____ design. random quasi-experimental before and after representational IncorrectQuestion 4 0 / 3 pts When members of a treatment group change simply as a result of being part of an experiment this is called:

the placebo effect. self-fulfilling prophecy. the John Henry effect Hawthorne effect. Question 5 3 / 3 pts In order to establish a causal relationship, there must be a (n) _____ between variables. fallacy correlation observation conclusion Question 6 3 / 3 pts A researcher who draws conclusions about individual-level processes from group-level data may be making a (n) _____ fallacy. ecological systemic reductionist individualist IncorrectQuestion 7 0 / 3 pts Which factor is NOT involved in context? When For whom Why Under what conditions

Question 8 3 / 3 pts What makes a research design quasi-experimental? Subjects are not randomly assigned to groups. The comparison groups do not need to meet specific criteria. The design must be longitudinal. The design cannot establish time order. Question 9 3 / 3 pts Matching is an effective substitute for randomization. True False Question 10 3 / 3 pts Identification of the context in which a causal relationship occurs is a required criterion for a valid causal relationship. True False Question 11 3 / 3 pts Compensatory rivalry is another name for the Hawthorne effect. True False

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Question 12 3 / 3 pts Mortality occurs when natural developments in the subject account for at least some of the observed changes between pretest and posttest. True False Question 13 3 / 3 pts Which measure of central tendency can summarize variables at the nominal level? Mean Median Mode Range Question 14 3 / 3 pts Which measure of central tendency would be most affected by a small number of extreme cases? Mean Median Mode Range Question 15 3 / 3 pts The correlation coefficient is a measure of: variance. digression. confidence.

association. Question 16 3 / 3 pts Frequency distributions that display percentages must also include: grouped values. the base N. the number of missing cases. relative frequency. Question 17 3 / 3 pts Statistics used to describe the association among variables and to control for other variables are called: inferential statistics. interquartile statistics. descriptive statistics. summary statistics. IncorrectQuestion 18 0 / 3 pts Central tendency and variability of distributions are described through: inferential statistics. interquartile graphs. descriptive statistics. summary statistics. Question 19 3 / 3 pts The criterion for statistical significance is the probability of _____ that an association is due to chance.

at least 95% more than 50% 100% less than 5% Question 20 3 / 3 pts 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. standard deviation. interquartile range. mean. confidence limit. Question 21 3 / 3 pts How may the problem of outliers be addressed in a distribution? Interquartile range Bell curve Variance Confidence limit Question 22 3 / 3 pts Although data analysis is important, the plan for data analysis does not need to be included in a research proposal. True False

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Question 23 3 / 3 pts Most measures of central tendency and variability are also inappropriate for qualitative variables. True False Question 24 3 / 3 pts How we interpret and report statistics determines their usefulness. True False Question 25 3 / 3 pts Univariate distributions are not able to tell us how variables relate to each other. True False

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