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In One Massive Study of 11,000 Twin Pairs in Four

question 85

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In one massive study of 11,000 twin pairs in four countries,the heritability of general intelligence (g) ________ between middle childhood and adolescence and it ________ between adolescence and young adulthood.


Definitions:

Withdrawal Symptoms

Physical and psychological effects that occur when a person stops using or reduces the intake of a substance they are addicted to.

Flashbacks

Intense, vivid involuntary recollections of past experiences, often distressing, that can occur in individuals with post-traumatic stress disorder (PTSD) or after substance use.

Melatonin

A substance secreted by the pineal gland that controls the cycle of sleeping and waking.

Symptoms of Insomnia

Characteristics of insomnia include difficulty falling asleep, staying asleep, or waking too early, resulting in daytime tiredness.

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