Manipulation or Participants
Amy is interested in how SJSU students are effected by increased gas prices. She goes to the student union and asks whoever will agree to participate in her study. She is using this type of non-probability sampling technique.
What is convenience sampling?
This device measures the electrical activity of muscles
What is electromyogram (EMG)?
The participant is unaware of whether a placebo or the actual drug is being administered
What is single-blind experiment?
Sara is interested in examining the effects of bystander effect on individuals. Because she is more interested in the behavior than describing the target population, she uses this sampling method.
What is nonprobability sampling?
This device measures electrical activity of the brain using electrodes attached to the scalp.
What is electroencephalogram (EEG)?
What is straightforward manipulations?
What are filler items?
The features of an experiment that could inform participants of the purpose of the study
What is demand characteristics?
When researchers try to create a psychological state in participants or stimulate a real-world situation, often with the help of a confederate, who appears to be a participate
What is staged manipulation?
A problem that occurs when the task is so difficult that hardly anyone can perform well.
In Moseley et al.'s (2002) study, participants were placed in the experimental group or this group.
What is the placebo group?
Dr. Tina Zawacki's bar lab was an example of this type of manipulation.
What is straightforward manipulation?
Problem where the independent variable appears to have no effect on the dependent variable measure because participants quickly reach the maximum performance level.
What is ceiling effect?
The impact of the researcher's beliefs on the outcome of a research study
What is expectancy effects or experimenter bias?