In Experiments,placing Subjects in Experimental Groups Such That Each Subject

question 181

Multiple Choice

In experiments,placing subjects in experimental groups such that each subject has an equal probability of ending up in any experimental group is referred to as

• A) random selection.
• B) random sampling.
• C) random forecasting.
• D) random assignment.

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Definitions:

Reactive Intermediates

Highly reactive species that are formed transiently during chemical reactions, often determining the product distribution.

Nucleophilic

Describes a type of chemical species that donates an electron pair to form a chemical bond in reaction, indicating a tendency to seek positively charged or electron-deficient sites.

Basic

Characteristic of substances that have a pH greater than 7, which can accept protons (H+) or donate electrons and are often slippery to the touch.

Secondary Radicals

are reactive intermediates in organic reactions, featuring an unpaired electron on a carbon atom that is bonded to two other carbon atoms.