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Content: difference
The Difference between Descriptive, Correlational, and Experimental
Studies
Descriptive Research – use
systematic observation to describe a specific behavior. Descriptive researchers
create very detailed records and observe many subjects. Descriptive research
cannot make predictions or determine causality. It simply identifies behaviors
and describes the behavior and the participants. Correlational Research –
determine whether a relationship or association exists between two or more
variables, but cannot determine if one variable causes another. In
correlational research, the researchers do not manipulate any of the variables
or put the participants into groups. Although correlational research cannot
determine causality, it is useful for predicting the level of one variable
based on knowledge of the other variable. Experimental Research – In an
experiment, one variable is intentionally manipulated by the researchers. The
participants are put into groups through random assignment. Random assignment
is assigning participants in an experiment to groups in a way that each
participant has an equal chance to be in any of the groups.