The Research Method Used by Robert Selman in His Study

question 5

Multiple Choice

The research method used by Robert Selman in his study of friendship development was most similar to that used by which of the following people?

• A) Jean Piaget
• B) Sigmund Freud
• C) Mary Ainsworth
• D) Lawrence Kohlberg

---

Definitions:

Information Ratio

This ratio measures the excess return of a portfolio over the benchmark's return, relative to the volatility of those excess returns, indicating the portfolio manager's ability to generate consistent excess returns.

Risk-Free Return

The theoretical return on investment with no risk of financial loss, often represented by the yield on government securities.

Sharpe's Measure

A metric used to evaluate the risk-adjusted return of an investment, calculating the excess return per unit of deviation in an investment.

Risk-Free Return

The return on investment that is guaranteed, with no risk of financial loss.