Connor and Mandy Are Two Unrelated 13-Month-Old Infants

question 598

Multiple Choice

Connor and Mandy are two unrelated 13-month-old infants. Connor can already walk easily, but Mandy has yet to take her first steps. What is the most likely explanation for the difference between their ability levels?

• A) Connor is brighter than Mandy, since he is progressing through the stages of development more rapidly.
• B) Mandy and Connor are both well within the normal age range for the development of these motor skills.
• C) Connor's mother has taught him to walk, but Mandy's mother has not taught her to walk.
• D) Mandy's inability to walk at 13 months is abnormal and may indicate the presence of other developmental problems.

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Definitions:

Barriers To Entry

Elements that obstruct or impede the ability of businesses to penetrate a particular market or sector.

Elasticity Coefficient

The elasticity coefficient measures how much the quantity demanded or supplied of a good responds to a change in one of its determinants, such as price, income, or the price of related goods.

Perfectly Elastic

Describes a market situation where demand or supply can change infinitely with even the slightest change in price.

Demand Schedule

A table that shows the quantity of a good or service that consumers are willing and able to purchase at each price point.