Which of the Following Can Be Symbolized As: EG: R

question 21

Multiple Choice

Which of the following can be symbolized as: EG: R X O1
CG: R O₂
Where,
X = the exposure of a group to an independent variable,treatment,event,the effects of which are to be determined
O = the process of observation or measurement of the dependent variable on the test units or group of units
R = the random assignment of test units or groups to separate treatments
CG = control group EG = experimental group

• A) one-shot case study
• B) one-group pretest-posttest design
• C) posttest-only control group design
• D) static group design
• E) Pretest-posttest control group design

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Definitions:

Methane Gas

A colorless, odorless, highly flammable gas, CH4, which occurs naturally as a byproduct of decomposition and is used as a fuel.

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The sudden failure or falling in of a cave roof or walls, often resulting in a sinkhole or depression at the surface.

Groundwater

Water that is found beneath the earth's surface, filling the spaces between rocks and forming aquifers.

Acidic Waters

Water with a pH less than 7, often resulting from natural processes such as volcanic emissions or anthropogenic sources like pollution.