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In an experiment, the variable that is controlled or manipulated by the researcher is called the...
A hypothesis is ...
a tentative statement about the relationship between two or more variables.
Lauran answered a series of written questions that asked about her attitudes and opinions on a number of current issues. The method of data collection that was being used in this case was...
As the number of bystanders increases, people are less likely to help someone who is in distress. This suggests that the size of a crowd and helping behavior are...
Experimenter bias occurs when...
experimenters' beliefs in their own hypotheses affect either the subjects' behavior or their observations of the subjects.
You are sitting on a park bench in a major metropolitan area from 7 a.m. to 7 p.m. and you note the number of people who walk by, whether or not they litter, and their gender. You are engaged in...
If we view an experiment as an attempt to establish a cause-effect relationship, the___________ variable would be the cause, and the ___________ variable would be the effect.
Random assignment of subjects occurs when...
all subjects have an equal chance of being assigned to any of the groups or conditions.
In a study designed to test the effects of a new drug developed to treat Alzheimer's disease, half the patients were given the actual drug while the other half of the patients were given a placebo (sugar pill). In this study, the experimental group is...
the group who received the actual drug
The experimental group...
consists of the subjects who receive some special treatment with regard to the independent variable.
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