Intro to Scientific Method HW

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Which of the following features would be useful in identifying pseudoscience?

Beliefs

Which of the following represents a blind study?

The test group does not know whether they are receiving a placebo or the actual treatment, but the researchers do.

A(n) ___________ involves running a test multiple times while changing one variable, leaving the others the same.

controlled experiment

A(n) _________ is a proposed explanation for a set of observations. It leads to predictions that can be tested by additional observations or by experiments.

hypothesis

By definition, a theory ________________.

is supported by a large body of evidence

Scientists use a general process known as the _________ to ask and answer questions about nature.

scientific method

A(n) ________ is broader in scope than a hypothesis, is supported by a large body of evidence, and generates many new hypotheses.

theory

Which of the following terms describes an aspect of a scientific experiment that changes?

variable

Which of the following represents a double-blind study?

Neither the test group nor the researchers know whether the test group is receiving a placebo or the actual treatment until all the data are collected.

Which of the following best describes a hypothesis-driven controlled experiment?

Testing a hypothesis using groups that differ only by the one variable under consideration


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