A Researcher Studies the Relationship Between Early Reading and Later

question 90

Multiple Choice

A researcher studies the relationship between early reading and later school achievement. She decides that a potentially important extraneous variable is IQ. In developing her groups for her study, she pairs each child who was an early reader with a child of the same IQ level who was not an early reader. The control technique she used was:

• A) Holding the extraneous variable constant
• B) Statistical control
• C) Matching
• D) Random assignment

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Definitions:

Fed Tightened

Refers to the Federal Reserve's actions to reduce the money supply and raise interest rates to control inflation.

Monetary Policy

The actions of a central bank, currency board, or other regulatory committees that determine the size and rate of growth of the money supply, which in turn affects interest rates.

Inflation

An increase in the general price level of goods and services in an economy over a period of time, leading to a decrease in the purchasing power of money.

Time Inconsistency

Refers to the situation where a decision-maker's preferences change over time, so that what is preferred at one point in time is inconsistent with what is preferred at another time.