Dr Bloom Wanted to Learn Whether Ice Cream Preferences Change

question 29

Multiple Choice

Dr. Bloom wanted to learn whether ice cream preferences change at different stages of development. For her study, she conducted a one-time assessment in which she asked a group of 5-year-olds, a group of 15-year-olds, and a group of 30-year-olds to identify their ice cream preferences. Dr. Bloom conducted a _____ study.

• A) case
• B) cross-sectional
• C) longitudinal
• D) cross-sequential

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Definitions:

Enzyme

Biological molecules that act as catalysts to speed up chemical reactions in living organisms.

Graph

A diagram showing the relation between variable quantities, typically of two variables measured along a pair of lines at right angles.

Reactants

Materials that exist before a chemical reaction starts and are used up to create end products during the reaction.

Hydrogen Ion Acceptor

A hydrogen ion acceptor, often a base in chemical terms, is a compound that is capable of accepting a hydrogen ion (H+) from another compound, thus participating in neutralization or buffer reactions.