Use of a Pretest as Well as a Posttest, Rather

question 11

Multiple Choice

Use of a pretest as well as a posttest, rather than a posttest by itself, is valuable because

• A) One can evaluate and statistically adjust for any pretest sensitization effect
• B) One can use a directional test to evaluate change, i.e., did patients improve
• C) Reduces bias due to multiple statistical tests
• D) The error term is reduced in the statistical test and power is increased

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Definitions:

Functional Groups

Unique sets of atoms located in molecules that cause the molecules to undergo their characteristic chemical reactions.

Carbon Atom

The fundamental building block of organic molecules, characterized by its ability to form four bonds.

Aromatic Compound

An organic molecule characterized by its stable ring of electrons, which creates delocalized pi-electron clouds throughout the structure, contributing to its chemical stability.

Carbon Atoms

The basic building blocks of all organic compounds, consisting of six protons and six neutrons.