Experiments Are the Best Research Method for Finding Causal Relationships

question 63

Multiple Choice

Experiments are the best research method for finding causal relationships between variables because they incorporate ________ and ________ into their design.

• A) control conditions; self-selection
• B) control conditions; random assignment
• C) external validity; dependent variables
• D) independent variables; informed consent

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Definitions:

Expected Value

The long-run average value of repetitions of the same experiment or random trial, indicating the central tendency.

Random Variable

A variable that can take on numerical results from a random event or experiment.

Standard Deviation

An indicator of the spread of a dataset relative to its mean, used to quantify the degree to which individual data points differ from the average.

Monthly Production

The total output or production of a manufacturing process or facility in a single month.