'Research Methods' Practice Quiz Chapter 10

. An inverse statistical relationship means that when one variable __________, the other variable __________.

. If scores from data are recorded on a graph and they are evenly distributed, this results in a:

. If most students make As and Bs on an exam and few make Ds and Fs, then a skewed curve (distribution) will result.

. When data are concentration at one end of a distribution, this results in a normal distribution.

. There are several different types of distribution curves. Which of the following is not an example of a statistical curve?

. Scattergram charts are good ways of identifying what the data look like, what the form is, and how the direction of the data "run."

. A cross-tabulation can help determine all of the following except:

. Significance levels are reported as p levels in inferential statistics.

. Type I errors (false-positive) occur when:

. __________ is the statistical measure of association used when both variables being compared are on the nominal level.

. __________ is the statistical measure of association used when both variables being compared are on the ordinal level.

. The null hypothesis suggests there is not a statistical relationship between the independent variable(s) and the dependent variable.

. Chi square is a statistical procedure used to test hypothesis using categorical data.

. Lambda values range from zero to 1, and a perfect statistical association between the variables is represented by a zero.

. 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.

. What three things are necessary to suggest that causality exists in a study?

. 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?

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