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Return to Research Methods in Crime, Justice and Social Problems 2e Student Resources
'Research Methods' Practice Quiz Chapter 10
Quiz Content
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An inverse statistical relationship means that when one variable __________, the other variable __________.
increases; decrease.
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decreases; increases.
correct
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increases; increases.
correct
incorrect
Both a and b.
correct
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If scores from data are recorded on a graph and they are evenly distributed, this results in a:
skewed variation.
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normal distribution.
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bivariate association.
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sampling error.
correct
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If most students make As and Bs on an exam and few make Ds and Fs, then a skewed curve (distribution) will result.
True.
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False.
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When data are concentration at one end of a distribution, this results in a normal distribution.
True.
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False.
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There are several different types of distribution curves. Which of the following is not an example of a statistical curve?
mesokurtic.
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leptokurtic.
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platykurtic.
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kurticurve.
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Scattergram charts are good ways of identifying what the data look like, what the form is, and how the direction of the data "run."
True.
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False.
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A cross-tabulation can help determine all of the following except:
whether a relationship exists between the variables.
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the strength of the relationship between the variables.
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the direction of the relationship between the variables.
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the cause of the dependent variable.
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Significance levels are reported as p levels in inferential statistics.
True.
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False.
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Type I errors (false-positive) occur when:
the research thinks a relationship between variables exist when it really does not.
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the researcher does not think a relationship exist between variables when there really is a relationship.
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a respondent in a sample gives an answer that is really not the truth.
correct
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None of the above.
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__________ is the statistical measure of association used when both variables being compared are on the nominal level.
Gamma.
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Pie.
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Lambda.
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None of the above.
correct
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__________ is the statistical measure of association used when both variables being compared are on the ordinal level.
Gamma.
correct
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Pie.
correct
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Lambda.
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None of the above.
correct
incorrect
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The null hypothesis suggests there is not a statistical relationship between the independent variable(s) and the dependent variable.
True.
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False.
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Chi square is a statistical procedure used to test hypothesis using categorical data.
True.
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False.
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Lambda values range from zero to 1, and a perfect statistical association between the variables is represented by a zero.
True.
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False.
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When reading a gamma value, a strong negative association is represented by -1; zero indicates no relationship, and 1 indicates a very strong positive correlation between the variables in question.
True.
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False.
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What three things are necessary to suggest that causality exists in a study?
spuriousness, association and regression.
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dependent, independent and mixed methods variables.
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statistical association, temporal order, nonspurious.
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None of the above.
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What type of statistical procedure is designed to determine whether the values of the dependent variable can be predicted by knowing the values of the independent variable?
regression analysis.
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bivariate correlation.
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beta coefficient.
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univariate statistics analysis.
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