You Want to Test People's Cola Preferences, So You Conduct

question 603

Multiple Choice

You want to test people's cola preferences, so you conduct a taste test using two different brands of cola.However, you are worried about possible clues you may give people taking the test.So, you label the two colas and have your assistant, who does not know which cola is which, administer the test to the subjects.Thus, you have prevented yourself and your assistant from giving out any clues by using

• A) random selection.
• B) random assignment.
• C) a single-blind experiment.
• D) a double-blind experiment.

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Definitions:

Biological Activity

The effect of a substance on living organisms, tissues, or cells, indicative of its potential therapeutic effects or toxicities.

Tertiary Structure

The three-dimensional shape of a protein molecule determined by interactions among its amino acids' side chains, beyond simple folding.

H-Bonds

Hydrogen bonds, a type of weak chemical bond that occurs when a hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom.

Peptide Backbone

The main structural component of a peptide, consisting of a repeated sequence of amino acids linked by peptide bonds.