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AP Psych - Science
Terms in this set (23)
A research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process
the group in an experiment that receives the variable being tested
Groups of participants in a research experiment who do not receive the experimental treatment or intervention.
a carefully worded statement of the exact procedures used in a research study
research that can be repeated, and thus verified, by other researchers later
The experimental factor that is manipulated; the variable whose effect is being studied.
The outcome factor; the variable that may change in response to manipulations of the independent variable.
an outside factor (not the independent factor) that might have an effect on the experiment's results.
all individuals that belong to a particular group that you want to draw conclusions about.
A relatively small proportion of people who are chosen in a survey so as to be representative of the whole.
a sample that accurately reflects the characteristics of the population as a whole
Random Sample / Random Selection
each person in the large population has an equal chance of being chosen for the study
assigning participants to experimental and control conditions by chance, thus minimizing preexisting differences between those assigned to the different groups
occurs when a researcher's expectations or preferences about the outcome of a study influence the results obtained
study in which the subjects do not know if they are in the experimental or the control group
An experiment in which neither the participant nor the researcher knows whether the participant has received the treatment or the placebo
something which has a positive mental effect, but no physical effect
(a pill, medicine, or procedure that is prescribed in an experiment that does not have any real physical effect)
the phenomenon in which the expectations of the participants in a study can influence their behavior
Institutional Review Board
a group of scholars within a university who review research proposal for ethical violations and/or procedural errors
giving potential participants enough information about a study to enable them to choose whether they wish to participate
the assurance that messages and information are available only to those who are authorized to view them (keeping secrets or personal information private)
misleading participants about the true purpose of a study or the events that will actually transpire
the post-experimental (after the experiment) explanation of a study, including its purpose and any deceptions, to its participants
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