Correct Answer: B

Rationale: Correct answer: School-age children master concrete operational tasks gradually, in a continuum of acquisition. Piaget's theory suggests that children develop cognitive abilities in stages, with concrete operational tasks being acquired gradually as part of this process. Choices A, C, and D are incorrect because concrete operational tasks are not typically mastered all at once, much later than Piaget believed, or necessarily after mastering abstract thinking.

Correct Answer: B

Rationale: Tyson is experiencing stranger anxiety in this situation. Stranger anxiety is a common response in infants when they are exposed to unfamiliar people, causing distress and prompting the infant to seek comfort and familiarity, usually from their primary caregiver. This aligns with Tyson crying and reaching out for Reggie, as he is showing signs of discomfort and wariness towards the assistant, who is a stranger to him. Choice A, sadness, does not fit the scenario as Tyson's reaction is more related to fear and discomfort rather than sorrow. Choice C, separation anxiety, is not the correct answer in this context as separation anxiety pertains to distress when separated from a primary caregiver, not when encountering unfamiliar individuals. Choice D, disgust, is also not applicable as Tyson's behavior is not based on revulsion but rather on being in an unfamiliar and distressing situation.

Correct Answer: B

Rationale: John Bowlby believed that the infant-caregiver bond has lifelong consequences for human relationships. This is supported by his theory of attachment, where he emphasized the importance of early attachment experiences in shaping individuals' future relationships. Choice A is incorrect as it does not reflect Bowlby's main focus on attachment theory. Choice C is incorrect as Bowlby's theory suggests that attachment is more than just instinctual. Choice D is also incorrect as Bowlby's work actually paved the way for the study of attachment patterns in humans.

Correct Answer: B

Rationale: Basic emotions like happiness, sadness, and anger are universal across humans, meaning they are experienced by people worldwide regardless of cultural differences. These emotions are not limited to a specific group of individuals or exclusive to humans; they are observed in various species. Choice A is incorrect because basic emotions actually appear early in life, not specifically in the middle of the second year. Choice C is incorrect as basic emotions are not exclusive to humans but are observed in other animals as well. Choice D is incorrect because basic emotions do not necessarily involve injury to our sense of self, but rather represent fundamental and instinctual feelings that are part of human nature.

Correct Answer: C

Rationale: Corrected Rationale: Language development plays a crucial role in emotional self-regulation in preschoolers. It enables children to express and manage their emotions effectively. Choices A and B, permissive and authoritarian child rearing styles, focus more on the parenting approach rather than the child's intrinsic development. Family size, as mentioned in choice D, does not directly contribute to gains in emotional self-regulation.