If X = Experimental Treatment and O = Pretest or Posttest

question 56

Multiple Choice

If X = experimental treatment and O = pretest or posttest observation, then for "O X O", O represents the _____ design.

• A) nonequivalent control group
• B) interrupted time series
• C) delayed control group
• D) repeated treatment

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Definitions:

Leachate

Liquid that has percolated through a solid and leached out some of its constituents, often used in the context of water passing through waste material in landfills.

Contaminated Water

Water that has been polluted by chemical substances, bacteria, or other pathogens, making it unsafe for human consumption and use.

Percolates

The movement of water or other liquids through a porous medium, often referring to the process of water filtering through soil layers.

Primary Recycling

The process of recycling a material into a new product of the same type, like using recycled aluminum cans to make new aluminum cans.