Dr Davis Is Planning a Study on the Effect of Rewards

question 245

Multiple Choice

Dr. Davis is planning a study on the effect of rewards on the academic achievement of young children. For his study, Dr. Davis decides to use white, male children from an upper-class neighbourhood. Having taken an introductory psychology course, you can see that Dr. Davis is going to have some problems because he won't necessarily be able to apply his results to girls or to students of other demographics. This particular problem substantially weakens the ___________ of Dr. Davis' study

• A)external validity
• B)control validity
• C)internal validity
• D)survey validity

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Definitions:

Detect

To find out or determine the presence or existence of something.

Monosaccharides

The simplest form of carbohydrates, consisting of single sugar molecules like glucose and fructose.

Carbon-to-hydrogen

The ratio of carbon atoms to hydrogen atoms in a molecule.

Carbon-to-oxygen

A ratio that compares the amount of carbon atoms to oxygen atoms in a molecule or compound.