In the Stock Market

question 109

Multiple Choice

In the stock market:

• A) changes in expectations will affect suppliers but not demanders.
• B) expectations that cause the demand curve to shift in one direction are usually associated with a supply shift in the same direction.
• C) the demand for stocks in recent years can be affected by demographic and income changes.
• D) all of the above are true.

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Definitions:

Internal Validity

The extent to which the design and conduct of a study allow for accurate attribution of outcomes to the intervention or treatment, rather than to confounding variables.

Nonequivalent Control Group Design

A quasi-experimental research design where the experimental group and control group may not be strictly comparable at the outset of the experiment, lacking random assignment.

Selection Differences

Differences in the type of subjects who make up each group in an experimental design; this situation occurs whenparticipants elect which groupthey are to be assigned to.

Independent Variable

In experimental research, the factor that is altered by the scientist to observe how it affects a dependent variable.