Which of the Following Is the Most Probable Explanation for the Difference

question 26

Multiple Choice

Which of the following is the most probable explanation for the difference in the apparent pattern of decline in IQ from cross-sectional and longitudinal studies?

• A) Older cohorts in cross-sectional studies have less education than do younger cohorts.
• B) The older samples in cross-sectional studies include more ill subjects.
• C) Declines in midlife were only observed in the cohort born between 1910 and 1920.
• D) The longitudinal samples have been more representative of the overall population than have the samples studied in the major cross-sectional studies.

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Definitions:

Short Interest

The total number of shares of a particular stock that have been sold short by investors but have not yet been covered or closed out.

Bearish Signal

An indication in financial markets suggesting that the price of an asset may decline.

Bullish Signal

An indicator that suggests an asset’s price is likely to rise. These signals are perceived through various forms of market analysis, including technical indicators and trends.

Relative Strength

A measure of the performance of a stock or financial asset compared to a market index or other stocks over a certain period.