Matched-groups design is defined as a method of assigning participants in between-subjects designs in which sets of participants are first formed by matching them on a variable that is highly correlated to the dependent variable participants from each set are then randomly assigned to groups.
Matching is one term in connection with experiments that refers to the procedure whereby pairs of subjects are matched on the basis of their similarities on one or more variables, and one member of the pair is assigned to the experimental group and the other to the control group.
Matching hypothesis refers to hypothesis that social support is helpful to an individual to the extent that the kind of support offered satisfies the individual's specific needs. Matching hypothesis moreover, is the notion that people are attracted to those who are about as physically attractive as they are; the idea that people of similar levels of physical attractiveness gravitate toward each other; the proposition that people tend to pair up with others who are equally attractive. Matching hypothesis moreover, is the notion that people are attracted to those who are about as physically attractive as they are.