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Introduction to Research Methods: Chapter 10
Terms in this set (26)
a graphical representation that uses vertical bars to represent each variable.
used to investigate the relationship between two variables.
used to determine the extent to which two quantitative variables approximate a linear relationship.
the collective percentage of categories together.
analysis that allows researchers to sketch the details of variables and gain familiarity with the sample.
a simple procedure that can illustrate key characteristics of participants in the sample.
a graphical representation that presents the frequency of a variable in the form of distinct but connected bars.
analysis that provides a deeper understanding of variables because it draws conclusions about the population from the sample.
a line connecting points in a distribution
mathematical average of a set of numbers.
Measures of central tendency
summarize an entire variable in a single value that is numerically representative of this variable.
middle point in a distribution.
number that occurs with the highest frequency in a distribution.
extreme values in a variable either too high or too low.
a graphical representation of the distribution of one variable, which works best with categorical variables with a small number of categories.
division of a distribution into quarters.
error that happens randomly during the process of handling data.
the difference between the maximum and minimum values in a set of numbers.
identifies the line that best describes the relationship.
an imaginary line that best reflects the data points.
errors or mistakes that happen during data collection
asymmetrical distribution, in which the distribution is skewed to the left or right.
the square root of the variance that represents each data point's average deviation from the mean.
a branch of mathematics in which logic is used to interpret phenomena and draw conclusions from accumulated data.
the analysis of only one variable; often descriptive in nature.
a measure of how spread out every point in the variable is from the mean.
THIS SET IS OFTEN IN FOLDERS WITH...
Introduction to Research Methods: Chapter 1
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