Gardner and Steinberg (2005)arranged a Study in Which Adolescents and Older

question 21

Multiple Choice

Gardner and Steinberg (2005) arranged a study in which adolescents and older adults played a simulated driving game either alone or with peers.The researchers measured risky behaviour in terms of the number of crashes that occurred during the game.They found that the presence of peers:

• A)greatly increased crashes for both age groups.
• B)significantly decreased crashes for both age groups.
• C)greatly increased crashes for adolescents but significantly decreased crashes for older adults.
• D)greatly increased crashes for adolescents but had little effect for older adults.

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Definitions:

Eve Hypothesis

A scientific theory suggesting that all modern humans have descended from a common maternal ancestor, dubbed "Mitochondrial Eve," who lived in Africa.

Out of Africa Hypothesis

A scientific theory proposing that all modern humans originated from a common ancestry in Africa before migrating to other parts of the world.

Denisovans

An extinct species or subspecies of archaic humans in the genus Homo, known from DNA evidence and a few fossil remnants found in Siberia.

Blade Tools

Prehistoric stone tools characterized by their elongated, blade-like shape, used by early humans and hominins.