How Early Can Handedness Begin to Be Established

question 59

Multiple Choice

How early can handedness begin to be established?

• A) Not until late childhood
• B) As early as 2-3 months of age
• C) Prenatally
• D) It varies greatly based upon sex of child

---

Definitions:

Operating Income

The profit realized from a business's core operational activities, excluding deductions of interest and tax.

Unit Selling Price

The amount of money charged for each individual unit of a product or service.

Contribution Margin Ratio

A financial ratio that measures the profitability of a product by subtracting variable costs from sales and dividing the result by total sales.

Operating Income

The profit realized from a business's operations after subtracting operating expenses from gross profit.