Which of the Following Is a Difference Between Cross-Sectional and Longitudinal

question 36

Multiple Choice

Which of the following is a difference between cross-sectional and longitudinal studies?

• A)Unlike cross-sectional studies, longitudinal studies are affected by cohort effects.
• B)Cross-sectional studies deal with people of the same age, whereas longitudinal studies deal with people belonging to different age groups.
• C)Cross-sectional studies assess people at one point in time, whereas longitudinal studies assess people over a long period of time.
• D)Cross-sectional studies assess participants multiple times, whereas longitudinal studies assess participants only once.

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Definitions:

Base

A substance that can accept protons or release hydroxide ions in aqueous solutions.

pKa

A quantitative measurement that describes the acidity of a substance, specifically the negative log of the acid dissociation constant (Ka).

Acid Strength

A measure of the propensity of a compound to donate a proton (H+) in an aqueous solution, often quantified by the acid dissociation constant (Ka).

Formic Acid

The simplest carboxylic acid with the chemical formula HCOOH, known for its role in ant stings.