If You Did an Experiment and Expected Both Permanent Carry-Over

question 24

Multiple Choice

If you did an experiment and expected both permanent carry-over effects and large individual differences among your subjects,you should:

• A) use a within-subjects design
• B) use a between-subjects design
• C) use a mixed design
• D) do the experiment twice,once between and once within

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Definitions:

Lactase

An enzyme found in the small intestine necessary for the digestion of lactose, the sugar found in milk.

Digestive System

Organ system that consists of digestive organs (stomach, intestines, etc.) and accessory organs (liver, etc.); ingests and digests food; absorbs nutrients and eliminates wastes.

Photosynthesis

A biochemical process in green plants and certain other organisms that converts light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen.

By-product

A secondary product generated as a result of a manufacturing process, chemical reaction, or biological pathway, which was not the primary product or goal.