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group-comparison design

a type of research approach that investigates potential differences across sets of individuals who are often randomly assigned to a control condition or to one or more specific experimental conditions. Data from a group-comparison design are often analyzed with statistical methods such as a t test or analysis of variance. Also called group-difference design.

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Psychology term of the day

May 25th 2024



n. the point at which either axis of a graph is intersected by a line plotted on the graph. For example, it is the value of y when x = 0 in an equation of the form y = a + bx, or the value of x where a regression line crosses the y-axis. See also x-intercept; y-intercept.