The numerical value derived from a Chi-square Test to indicate the measure of relationship between two sets of categorical data. Concurrent validity Validity that is determined by relating the test scores of a group of subjects to a criterion measure administered at the same time or within a short period of time. The degree to which items on a test actually represent the content that the test is designed to measure. A statistical tool that permits us to compare the scores of a group of subjects on two variables and obtain a numerical estimate of the magnitude of the relationship between these variables. Correlational research Research that seeks to either to determine the relationships between variables related to the science in question or to make predictions.
Correlational research involves one or more correlation coefficients.
A matrix that depicts all of the possible intercorrelations between a list of variables. D Descriptive Statistics Methods used to derive from raw data certain indices that characterize or summarize the entire set of data. Descriptive research is designed to describe the characteristics of the subjects of the science. Descriptive research can be roughly classified as either survey research or observational research. The variable that the researcher is trying to change in the research.