Define the Concepts Internal and External Validity

question 5

Essay

Define the concepts internal and external validity. Discuss why we say that for some experiments an attempt at increasing one type tends to jeopardize the other type.

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Definitions:

Increasing pKa

This refers to the process or trend of increasing the acidity constant (pKa), indicating a decrease in acid strength.

Resonance Structures

Different Lewis structures for the same molecule that depict different possible arrangements of electrons.

AntiAromatic

Refers to organic compounds that are cyclic, conjugated, contain a planar ring system, but do not follow Huckel's rule, resulting in increased instability.

Pyrrole

A heterocyclic aromatic organic compound, a five-membered ring with the formula C4H5N, containing a nitrogen atom.