Which Pianist Is Most Likely to Use Private Speech While

question 92

Multiple Choice

Which pianist is most likely to use private speech while practicing?

• A) ​Wolfgang, a new student who is practicing a very easy piece
• B) ​Sebastian, who is not making any mistakes
• C) ​Johann, a skilled pianist who is playing a new, difficult piece
• D) ​Giuseppe, who is already a concert pianist

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Definitions:

Law of Diminishing Returns

An economic principle stating that as investment in a particular area increases, the rate of profit from that investment, after a certain point, cannot continue to increase if other inputs remain at a constant.

Market Value

The current price at which an asset or service can be bought or sold in the open market.

Productivity

Productivity measures the efficiency of production in terms of the amount of goods and services produced per unit of labor, capital, or other inputs.

Total Output

The total amount of goods or services produced by a firm or country within a specific period.