Question

dr. jones models human language acquisition by suggesting that children must master specific grammatical structures (stage 1: single words, stage 2: two - word phrases, stage 3: basic sentences) in a specific, universal order before they can move to the next level. this approach best characterizes which type of developmental model? continuous theory, stage theory, social learning theory, dynamic systems theory. an 11 - month - old is currently capable of pulling himself up to stand by using furniture, but he still moves across the room by pulling himself along on his stomach. based on typical motor development milestones, which sequence of achievements is he most likely to master in the next few months? (options for the second question are partially shown: sitting without support, then walking, then standing independently; crawling/creeping on hands and knees, then standing independently, then walking and other partially shown options)

Explanation:

First Question:

• Continuous theory: Focuses on gradual, cumulative change without distinct stages. But the scenario has distinct stages (Stage 1, 2, 3) with a specific order, so this is not correct.
• Stage theory: Proposes development occurs in distinct, sequential stages where individuals must master one stage before moving to the next. The description of children mastering specific grammatical structures in a universal order (Stage 1, 2, 3) fits this theory.
• Social learning theory: Emphasizes learning through observation, imitation, and social interaction. The question is about a stage - based model of language acquisition, not social learning, so this is incorrect.
• Dynamic systems theory: Views development as a complex, self - organizing system with multiple interacting factors. It does not focus on a fixed, stage - based order of mastering structures, so this is incorrect.

• First option: Sitting without support is a milestone typically achieved earlier (around 4 - 7 months), while the child is already 11 months old and can pull up to stand. So this sequence is not correct as sitting without support should have been mastered before 11 months.
• Second option: For an 11 - month - old who can pull up to stand (using furniture) and moves by pulling on the stomach (a form of creeping), the next typical motor milestones are crawling/creeping on hands and knees (if not already fully mastered), then standing independently (as a step towards walking), and then walking. This follows the typical progression of motor development. (Note: The third option in the original image is cut off, but based on the visible options, this is the correct one among the two fully visible ones.)

Answer:

B. Stage theory

Second Question: