Correct Answer: D

Rationale: The correct answer is 'a recast.' A recast occurs when an adult rephrases a child's incorrect speech into the accurate form, aiding in the learning of proper grammar. Choice A, 'fast-mapping,' refers to the ability to learn new words quickly; choice B, 'an expansion,' typically involves adding more information to a child's speech; choice C, 'overregularization,' is an error children make when they apply grammatical rules too broadly.

Correct Answer: D

Rationale: The correct answer is 'social referencing.' Social referencing is a behavior where infants seek emotional information from a trusted person, usually a caregiver, to determine how to respond in uncertain situations. This process helps infants regulate their emotions and behaviors based on the cues they receive from the trusted individual. Choices A, B, and C are incorrect because self-control, give-and-take, and emotional self-regulation do not specifically involve seeking emotional information from others in uncertain situations, as social referencing does.

Correct Answer: C

Rationale: Erikson's theory of psychosocial development highlights generativity as the central focus of middle adulthood. Generativity involves being productive, caring for others, and contributing to society. This stage is characterized by a desire to leave a lasting impact on future generations. Choices A, B, and D are incorrect. Initiative is associated with the preschool years, autonomy with early childhood, and industry with middle childhood according to Erikson's stages of development.

Correct Answer: C

Rationale: The correct answer is C: 'ego integrity.' Erikson's concept of ego integrity involves reflecting on life with a sense of satisfaction, which requires continuity in personal history. This sense of integrity is developed in late adulthood and is characterized by a feeling of wholeness and fulfillment. Choices A, B, and D are incorrect. Intimacy (choice A) relates to forming close relationships, ego identity (choice B) pertains to a stable sense of self, and initiative (choice D) is about being proactive and exploring the environment, which are not directly associated with preserving personal history for a sense of satisfaction in later life.

Correct Answer: C

Rationale: Reduced sleep is the correct answer as it affects hormones that regulate hunger and metabolism, leading to increased appetite and weight gain. Self-regulation is not directly related to the brain's regulation of hunger and metabolism. Frequent eating out may impact food choices and portion sizes but is not specifically linked to disrupting the brain's regulation. Using screen media can affect sleep patterns but is not as directly related to the brain's regulation of hunger and metabolism as reduced sleep.