21 terms

Yazzie Psych Final Part 2


Terms in this set (...)

Independent variable
The variable which is manipulated
Dependent variable
The variable which is affected
Defining what will constitute the variables
Experimental hypothesis
A prediction of how the manipulation of the independent variable is expected to to affect the dependent variable
Experimental condition
The participants have a variable changed
Control condition
The participants have no variables changed
Control group
The group of participants in the control condition
Null hypothesis
A hypothesis which states that the independent variable will have no effect on the dependent variable
Laboratory experiment
Tightly controlled experiments which take place in a lab
Field experiment
An experiment that takes place in a natural environment, but variables are still manipulated
Natural experiment
An experiment where researchers have no control over the variables, but the variables are already there
Confounding variables
Undesirable variables that influence the relationship between the independent variable and the dependent variable
Demand characteristics
When participants act differently because they know they are part of an experiment (same as Hawthorne Effect)
Hawthorne Effect
When participants act differently because they know they are part of an experiment (same as demand characteristics)
Single-blind control
The participants don't know what the aim of the study is
Researcher bias
The expectations of the researcher influence them subconsciously or consciously in a way that they see what they are looking for
Double-blind control
Both the participants and the researcher don't know whether they are in the control or experimental group
Participant variability
When characteristics of the sample affect the dependent variable
When the situation is set up to be so unlikely that one has to wonder about the ecological validity
Correlational study
Researchers gather data (without conducting an experiment) about two variables to determine if they have a relationship with one another
Negative correlation
When one variable increases, it affects the other variable by its decreasing