Correct Answer: A

Rationale: Engaging the infant in a familiar game like peek-a-boo can help reduce fear and build rapport before starting the assessment.

Correct Answer: C

Rationale: The correct answer is C. Falling when bending over to touch toes could indicate a developmental delay or a balance issue that may need further assessment. Choices A, B, and D are typical developmental milestones for a 3-year-old child. Pedaling a tricycle without assistance, unscrewing a bolt on a toy, and building a tower of 10 cubes are all age-appropriate activities for a child of this age.

Correct Answer: B

Rationale: The correct answer is B. Understanding time concepts like 'half past' can be challenging for a 7-year-old, indicating the level of language development. Choice A is incorrect as fascination with bathroom language is common in this age group but not necessarily indicative of language development. Choice C is incorrect as a 7-year-old typically cannot carry on an adult conversation due to cognitive and experiential limitations. Choice D is incorrect as by the age of 7, children should be able to speak in full sentences.

Correct Answer: C

Rationale: Recognizing the potential for power conflicts when blending two households indicates an understanding of the complexities in reconstituted families.

Correct Answer: A

Rationale: In Freud's psychosexual development theory, the oral stage is the first stage and occurs during infancy. It focuses on activities involving the mouth, such as sucking and feeding. This stage is crucial for the child's development as it forms the basis for trust and attachment. Choices B, C, and D are incorrect as latency refers to the stage during middle childhood where sexual impulses are suppressed, genitality refers to the final stage focusing on mature sexual relationships, and anality refers to the stage occurring during the toddler years where toilet training plays a significant role.