Three Key Elements of Control That Allow Researchers to Draw

question 16

Multiple Choice

Three key elements of control that allow researchers to draw cause-and-effect conclusions are

• A) randomization, manipulation, and variation.
• B) assignment, manipulation, and comparison/control.
• C) randomization, manipulation, and comparison/control.
• D) randomization, condition, and comparison/control.

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Definitions:

Scatter Plot

A type of graph that illustrates the relationship between two variable quantities, with each pair of points plotted as coordinates on the Cartesian plane.

Time-Series Components

Distinct elements that constitute time-series data, typically including trend, seasonal, cyclical, and irregular components.

Quarterly Time Series

Data collected, distributed, or analyzed at intervals of three months, often used to identify trends over time.

Residual Plot

A graphical representation where residuals (differences between observed and predicted values) of a regression analysis are plotted against predicted values to assess the fit of a model.