________ designs are used to test hypotheses or measure the reaction of one variable to a change in another variable.
A)More informal
B)More formal
C)More expensive
D)Less expensive

Question

Quizplus · Accepted Answer

Formal designs, such as experimental designs with control groups, are used to test hypotheses and measure the effect of one variable on another. These designs involve careful manipulation of variables and control over extraneous factors to ensure accurate results. Informal designs may not have adequate controls or randomization, making it difficult to draw conclusions. Both formal designs can be more expensive than informal designs due to the need for resources such as equipment, materials, and personnel.

________ Designs Are Used to Test Hypotheses or Measure the Reaction