Match the Term to Its Definition by Filling in the Letter

Short Answer

Match the term to its definition by filling in the letter before the term in the appropriate blank.
$$\begin{array} { | l | l | l | } \hline \text { A Experiment } & \text { I. Laboratory experiments } & \text { Q. In-depth interviews } \\\hline \text { B. Indices } & \text { J. Natural or field experiments } & \text { R. Experimental proup } \\\hline \text { C. Operationalize } & \text { K. Control eroup } & \text { S. Ordinal variables } \\\hline \text { D. Posttest } & \text { L. Population } & \text { T. Focus proups } \\\hline \text { E. Field research } & \text { M. Ethropraphy } & \text { U. Corverience sarnple } \\\hline \text { F. Participart observation } & \text { N. Interval variables } & \text { V. Reliability } \\\hline \text { G. Independent variable } & \text { O. Internal Review Boards } & \text { W. Validity } \\\hline \text { H. Dependent variable } & \text { P. Hypotheses } & \\\hline\end{array}$$
-____ A form of qualitative study in which researchers directly observe people's behavior.