What Was Oskar Pfungst's Evidence That Clever Hans Was Not

question 12

Multiple Choice

What was Oskar Pfungst's evidence that Clever Hans was not doing math?​

• A)Hans answered correctly only when the questioner made certain sounds.
• B)​Hans answered correctly only when the questioner stood in plain sight.
• C)​Hans answered correctly only when his trainer, Mr. von Osten, was present.
• D)​Hans answered correctly on some days and not others.

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Definitions:

Comparable-Worth Policy

A principle advocating for equal pay for work of equal value across different job categories, particularly for gender pay equity.

Free-Market Economy

An economic system where prices for goods and services are determined by the open market and consumers, with minimal government intervention.

Standard Deviation

A measure of the dispersion or variation in a set of numerical data, indicating how spread out the values are from the mean.

Standard Error

A statistical term that measures the accuracy with which a sample distribution represents a population using standard deviation.