Which statement best differentiates mass-to-specific development from sequential development?

• A. Mass-to-specific refers to general development before specific skills, while sequential follows a specific order.
• B. Mass-to-specific and sequential are the same.
• C. Mass-to-specific deals only with cognitive skills.
• D. Sequential development starts with fine motor and ends with gross motor.

Answer: (A)

The main concept here is how motor development progresses: mass-to-specific (general-to-refined) versus a fixed, step-by-step sequence of milestones.

Mass-to-specific means babies develop broader, general motor control first—large muscle movements and overall coordination—before refining to precise, small-muscle skills. This is why a child can move the whole arm or sit up with support before achieving fine control like a pincer grasp. Sequential development, on the other hand, implies there is a predetermined order in which skills appear, a specific progression that the child follows as milestones are reached.

The statement correctly distinguishes the two: mass-to-specific describes development from general to specific skills, while sequential denotes following a particular order of milestones. The other options don’t fit: mass-to-specific is about motor, not cognitive, skills; sequential isn’t typically described as starting with fine motor and ending with gross motor (that would be the reverse of the usual gross-to-fine progression); and the two concepts are not the same.