Doctors Chase and Sanborn Are Conducting an Experiment on the Effects

question 104

Multiple Choice

Doctors Chase and Sanborn are conducting an experiment on the effects of caffeine on memory.Participants are randomly assigned to a caffeine or a no-caffeine group; their recall of items on a word list is later assessed.Which pair correctly identifies a variable in this experiment?

• A)Caffeine-dependent variable
• B)Caffeine-independent variable
• C)Word recall-independent variable
• D)Word recall-experimental variable

---

Definitions:

Truth-functional Compound

A logical compound statement whose truth value is determined by the truth values of its component parts.

Quantifier

A symbol or word used in logic to express the quantity of specimens that a proposition pertains to, such as "all", "some", or "none".

Atomic Open Sentence

In logic, an open sentence containing no quantifiers or connectives, which may become a proposition when variables are substituted.

Compound

A substance formed from two or more elements chemically united in fixed proportions; or, in a linguistic context, a term made up of two or more words functioning as a single unit.