Terms in this set (15)
The experimental factor that is manipulated; the variable whose effect is being studied.
A group of people about which we wish to draw conclusions
a sample that fairly represents a population because each member has an equal chance of inclusion
the phenomenon in which the expectations of the participants in a study can influence their behavior
A research strategy in which neither subjects nor experimenters know which subjects are in the experimental or control groups.
any variables other than the independent variable that seem likely to influence the dependent variable in a specific study
A type of extraneous variable that directly affects how the independent variable acts on the dependent variable
independent group design
Participants are allocated to different groups where each group represents one experimental condition
A prediction that there is no difference between groups or conditions, or a statement or an idea that can be falsified, or proved wrong.
Issues of research that take into account the welfare of participants
A written agreement to participate in a study made by an adult who has been informed of all the risks that participation may entail.
The technique whereby two or more variables are systematically measured and the relationship between them (i.e., how much one can be predicted from the other) is assessed
a type of research design where a comparison is made, as in an experiment, but no random assignment of participants to groups occurs
A standardised way of making observations, gathering data, testing hypotheses and interpreting results to establish theories