When Keller and Marian Breland, Two Psychologists Who Became Animal

question 91

Multiple Choice

When Keller and Marian Breland, two psychologists who became animal trainers, decided that it would be cute to have a pig drop a big wooden coin into a box, they found that __________

• A) food was not an effective reinforcer for the pig and so learning didn't occur.
• B) when given edible roots as reinforcers, the pig learned the task in less than ten trials.
• C) the pig displayed instinctive drift by dropping the coin and pushing it around with its nose.
• D) the pig showed intrinsic interest in the task and so reinforcement was unnecessary.

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Definitions:

Reward to Risk Ratio

A metric utilized by investors for comparing the anticipated gains from an investment against the risk incurred to attain those gains.

Beta

An indicator of the level of systematic risk or volatility of a security or a portfolio relative to the entire market.

Total Risk

The complete range of risks associated with an investment, including both systematic risk (market related) and unsystematic risk (company or industry specific).

Standard Deviation

A measure of the dispersion or variability of a set of data points from its mean, often used in finance to gauge investment risk.