Which of the Following Statements Is TRUE

question 25

Multiple Choice

Which of the following statements is TRUE?

• A) Both crystallized and fluid intelligence remain relatively stable across the life span.
• B) While crystallized intelligence remains relatively stable across the life span, fluid intelligence begins to decline in the twenties.
• C) While fluid intelligence remains relatively stable across the life span, crystallized intelligence begins to decline in the twenties.
• D) Both crystallized and fluid intelligence begin to decline in the twenties.

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Definitions:

Monozygotic Twins

Twins that result from the fertilization of a single egg that then splits, resulting in two genetically identical individuals.

Nonshared Environments

The unique environment in which an individual is raised that contributes to the differences in traits and behaviors not attributable to genetics.

Phenotypes

The set of observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.

Monozygotic Twins

Another term for identical twins, referring to siblings that develop from one zygote that splits and forms two embryos, sharing all their genetic material.