Which Statement Regarding Increases in Cognitive Abilities Is False

question 94

Multiple Choice

Which statement regarding increases in cognitive abilities is false?

• A) Increases in cognitive abilities are due to growth in the size of the brain.
• B) Pruning of the synapses leads to increases in cognitive abilities.
• C) Changes in levels of neurotransmitters reduce sensitivity to reward, leading to an increase in sensation seeking.
• D) Maturation of the prefrontal cortex allows for complex activities such as planning, decision making, goal setting, and metacognition.

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Definitions:

Nonsignificant Findings

Results of a statistical analysis that do not meet the criteria for significance, indicating that any observed effect might be due to chance.

Confederate

In psychological research, a person who pretends to be a participant but in fact is part of the research team, used to manipulate social interactions as part of the experiment.

Mediator

A variable that explains the mechanism through which an independent variable influences a dependent variable in a study.

Arbitrator

An arbitrator is a neutral third party chosen to resolve disputes between parties outside of court, giving a decision that is usually binding.