High Levels of Radiation Are NOT Used

question 92

Multiple Choice

High levels of radiation are NOT used

• A)to sterilize medical equipment.
• B)to kill cancer cells.
• C)as tracers to detect molecular changes.
• D)to sterilize medical tools and equipment.

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Definitions:

Confounding Variables

Factors other than the independent variable(s) that are unequal across groups.

Random Assignment

A method used in experiments to ensure that every participant has an equal chance of being assigned to any given group, thereby reducing bias.

Experimenter Bias

A phenomenon that occurs when a researcher’s preconceived notions or expectations in some way influence participants’ behavior and/or the researcher’s interpretation of experimental results.

Placebo Effect

A psychological phenomenon where a person experiences a perceived improvement in condition after receiving a treatment that has no therapeutic effect.