Research Designs Lecture Notes Flashcards
Causal relationship
When he change in one variable forces a change in another variable
Experimental method
The type of research design that manipulates or causes a change in the independent variable and then measures the resulting change in the dependent variable
Operational definition
How researcher specifically defined a variable (must be measurable).
Experimental group
The test group that is manipulated or change during the experiment
control group
The group an experiment that is not exposed to any treatment or manipulated or changed
Independent variable
The variable that is changed or manipulated
Dependent variable
The variable that the researcher measures to assess the effect of the independent variable
internal validity
The confidence of an experiment
Extraneous variable
Variable that is not understudy which affects the results of an experiment
Confound
When a researcher fails to control some extraneous variable that affects the results of an experiment
Participant demand
Participants behave in the way that they think the experimenter wants them to behave
Experimenter bias
Phenomenon in which an experimenter’s expectations influence the outcome of an experiment
Representative sample
A sample to accurately reflects the larger population
Random sampling
To obtain a representative sample researchers use random sampling techniques
Blind studies
Experiment where the participant does not know if they are receiving the real treatment