List at Least 4 Threats to Internal Validity and Explain

question 12

Essay

List at least 4 threats to internal validity and explain what they mean.

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Definitions:

Anomeric Carbon

The carbon atom in a cyclic saccharide that is connected to two oxygen atoms, one in an ether linkage and the other in a hydroxyl group, and its configuration determines the alpha or beta form of the saccharide.

Glycoside

A molecule in which a sugar is bound to another functional group or molecule through a glycosidic bond.

D-Aldopentose

A type of aldopentose, which is a 5-carbon sugar with an aldehyde group, having the 'D' configuration.

Alditol

A type of sugar alcohol resulting from the reduction of an aldose, wherein the aldehyde group is converted into a hydroxyl group.