Immediately Following the Death of Michael Brown, the Pew Research

question 75

Multiple Choice

Immediately following the death of Michael Brown, the Pew Research Center organized a survey by

• A)conducting a random sample of 1,000 American adults using landlines and cell phones.
• B)posting a self-selected survey on a public Internet site titled DoBlackLivesMatter.org.
• C)going to Ferguson and personally interviewing more than 2,000 active protesters.
• D)recording the opinions of callers who responded on local talk radio programs.

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Definitions:

Independent Variable

A variable in an experiment or study that is manipulated or categorized to observe its effect on a dependent variable.

Coefficient Of Correlation

A measure that calculates the strength and direction of a linear relationship between two variables, represented as 'r'.

Dependent Variable

In an experiment or model, it is the variable being tested and measured, which is expected to change as a result of changes in the independent variable(s).

Independent Variable

A variable in an experiment or statistical model that is manipulated or controlled by the experimenter to observe its effect on a dependent variable.