Formulate an Experimental Operational Definition for Each Independent Variable in Question

Formulate an experimental operational definition for each independent variable in question 2.

A) Absence makes the heart grow fonder.
We can define absence as the number of days a couple is separated during an
Experiment.
B) It takes longer to recognize a person in a photograph seen upside down.
We can define photograph position as a photograph's spatial orientation
(original upright orientation or rotated 180 degrees) .
C) People feel sadder in blue rooms than pink rooms.
We can define room color using a commercial color chart and then paint two
Identical rooms with blue or pink paints selected from the chart.
D) Waiting with others reduces anxiety.
We can define affiliation as the presence or absence of a confederate while a
Participant waits in a reception area.