Exam 14: Basic Data Analysis

Analyses that test hypotheses and models involving multiple (three or more) variables or sets of variables are referred to as ____________________ statistical analyses.

The term p-value stands for power-value.

Another name for data transformation is ____.

When sample size (n) is larger than ____, the t-distribution and Z-distribution are almost identical.

The type of measurement scale used in the research study determines the possible statistical tests that can be used appropriately with the resulting data.

When a researcher combines the "Strongly Disagree" and "Disagree" responses on a Likert scale item to a single "Strongly Disagree/Disagree" percentage, the researcher is using ____.

Which of the following is the appropriate technique for addressing research questions involving relationships among multiple variables that are measured with a less-than interval scale?

Scores or observations recalibrated to indicate how they relate to a base number are called ____________________ numbers.

The appropriate technique for addressing a research question involving relationships among multiple less-than interval variables is ____________________.

Combining the data from adjacent categories of a Likert-scale item is a common form of data transformation.

The process of changing data from their original form to a format that more closely fits the objectives of the research study is called data transformation.

A 3 x 4 table represents a contingency table with twelve variables.

The appropriate test to use for hypotheses involving an observed mean compared to specified value is the univariate ____________________.

Carlos is examining the row and column totals in a contingency table. What are these called?

A graph in which the height of a bar indicates the frequency with which that category occurred is called a(n) ____________________.

An extreme value that lies far beyond range of most of the data in a distribution (either as a very high score or as a very low score) is called an outlier.

Compare and contrast Type I errors and Type II errors and explain which one is of more concern to researchers.

Which graphical application shows a frequency distribution in which the height of a bar corresponds to the frequency of a category?

If a researcher wants to summarize the responses of subjects by gender and awareness of a particular brand ("Yes" or "No"), he or she should use a ____ contingency table.

When a third variable changes the relationship between the independent variable and a dependent variable in important ways, the third variable is called a(n) ____________________ variable.