Results from Studies in Which Researchers Have Attempted to Teach

question 31

Multiple Choice

Results from studies in which researchers have attempted to teach chimpanzees to use non-verbal language (i.e.,sign language or communication boards) indicate that

• A) chimpanzees are incapable of acquiring non-verbal communication.
• B) some chimpanzees have appeared to learn many words, and have combined words in appropriate ways.
• C) chimpanzees are capable of learning language to a level equivalent to that seen in 10-year-old children.
• D) chimpanzees can use non-verbal methods to communicate with other chimps, but not with humans.

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Definitions:

Margin of Error

An indicator of the precision of an estimate in statistics, showing the range within which the true value is expected to lie with a certain level of confidence.

Confidence Interval

A range of values that is used to estimate the true value of a population parameter with a certain level of confidence.

Standard Deviation

An index used to assess the extent of variation or scatter among data points.

Sample Size

The number of observations or individuals in a subset collected from a population for the purposes of statistical analysis.