If Estimates of an Extinction Rate 10,000 Times Greater Than

question 38

Multiple Choice

If estimates of an extinction rate 10,000 times greater than the background rate are correct,then what percentage of all species will be extinct by the end of this century?

• A) 5 - 10%
• B) 10 - 25%
• C) 25 - 33%
• D) 25 - 50%
• E) 60 - 75%

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Definitions:

Social Desirability Bias

The tendency of respondents to answer questions in a manner that will be viewed favorably by others.

Honesty Survey

A method of collecting data which relies on the self-reported truthfulness of participants regarding sensitive or personal issues.

Experimenter Bias

A process where the scientists performing the research influence the results, intentionally or unintentionally, towards their expected outcome.

Control Group

In experiments, a group of subjects that does not receive the treatment being tested, used for comparative purposes against the experimental group.