A Research Design That Combines Cross-Sectional with Longitudinal Design Is

question 21

Multiple Choice

A research design that combines cross-sectional with longitudinal design is:

• A) cross-sequential.
• B) cohort-sequential.
• C) time-sequential.
• D) selective-sequential.

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Definitions:

Basicity

A measure of the ability of a compound to act as a base and accept protons.

Aniline

An organic compound with the formula C6H5NH2, a primary amine derived from benzene, used in the manufacture of dyes, drugs, and plastics.

p-Nitroaniline

An organic compound derived from aniline, characterized by a nitro group positioned para (opposite) to the amine group, primarily used in the synthesis of dyes, pharmaceuticals, and agricultural chemicals.

p-Toluidine

An organic compound, a derivative of aniline, where a methyl group is para (i.e., in the 4-position) to the amino group on the benzene ring.