In one group, the serving size will be deemed normal, the other several times a normal portion size, according to the FDA (Food and Drug Administration) recommendations. The degree to which subjects finish their portions will then be measured. Subjects will fill out a questionnaire afterwards about the 'taste test,' and one question will be if the portion size was too much/not enough/just right. Classify each variable

Stimulus: Portion size of a desired food

Behavioral: Over/normal/under eating

Organismic: Portion size

Independent: Amount consumed

Determine whether or not the research question represents basic or applied research:

Applied research,...

If portion size encourages over-or normal-weight subjects to overeat, public health drives to reduce portion size in restaurants may result in a significant health improvement.
Ethic: It is essential that subjects do not alter their tendency to eat all of a portion of served food or to not eat all of a serving. They will thus be misinformed that they will be participating in a taste test for marketing purposes.

Works Cited

Basic vs. applied research. Lawrence Berkeley National Laboratory's

ELSI (Ethical, Legal, Social Issues in Science) Project. Retrieved February 4, 2009 at http://www.lbl.gov/Education/ELSI/research-main.html