When an Experimenter Knows What the Results of an Experiment

question 36

Multiple Choice

When an experimenter knows what the results of an experiment "should" be, it is possible for the results to be unintentionally influenced. This is an example of

• A) evaluation apprehension
• B) role demands
• C) experimenter bias
• D) selection bias

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Definitions:

Independent Variable

In an experimental setting, the variable that is manipulated or changed by the researcher to explore its effects on a dependent variable.

Experimental Group

A group in a scientific study that receives the treatment or condition being tested, as opposed to a control group, which does not.

Control Group

In experimental research, a group of subjects that does not receive the treatment being tested, used as a benchmark to measure how other subjects do.

Warm Room Temperature

A temperature setting in an indoor environment that feels comfortably warm to the majority of people, typically around 68 to 77 degrees Fahrenheit (20 to 25 degrees Celsius).