Question

In scientific investigations a researcher must clearly define the variables under study by precisely describing how they will be measured or controlled. These definitions are referred to as:________.
a. objective definitions
b. precise definitions
c. operational definitions
d. dictionary definitions

Answer 1

Answer: C. operational definitions

Explanation: operational definitions can be simply refered to as the statements of operationalization (or explanation of methods) used to define procedures needed to determine nature of a phenomenon like (object, term or variable), as well its properties, for example; chemical composition, quantity etc. This procedure specifically shows how variables are measured and if they are measured in the right way by the researcher (show validity).