Which of the following develops at around 6 weeks of age?

anger
laughter and spontaneity
fear of unexpected sights and sounds
the social smile

the social smile

Psychology

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The ________ theory emphasizes the role of the environment on language

A) nativist B) learning C) language acquisition device D) symbolic thought

Psychology

Storage strategies in children are typically assessed via __________ or __________

Fill in the blanks with correct word

Psychology