Exhibit 2-3: in a Study Designed to Investigate the Effect

question 7

Multiple Choice

Exhibit 2-3: In a study designed to investigate the effect of self-recitation on recall, an investigator asked two groups of 10-year-olds to memorize a number of statements.The subjects of Group I were told to read the statements repeatedly.The subjects of Group II were told to read the statements repeatedly and also to spend some of their time to test their recall by self-recitation.Later, both groups were given a test of memory for the statements.Statistical analysis of the scores showed that the subjects of Group II obtained significantly higher scores than those of Group I.
-Refer to Exhibit 2-3.This study presents an example of

• A) survey research.
• B) qualitative research.
• C) descriptive research.
• D) causal-comparative research.
• E) experimental research.

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Definitions:

Portfolio Variances

Measures the dispersion of average returns of a portfolio from its mean, indicating the level of risk involved.

Expected Return

The estimated average return on an investment, accounting for the probabilities of each possible outcome.

Undiversifiable Risk

A type of risk inherent to the entire market or market segment that cannot be mitigated through diversification.

Beta Coefficient

The beta coefficient measures the volatility of an investment in relation to the market as a whole, indicating its relative risk.