Source: Video created by Barbara Ludins
Mathematical indicator that results were not reached by accident.
Analysis of several studies put together to get an overview of the research that has been done on a topic.
Improvement that is not attributed to the experimental condition, that comes from the subject's mental state toward that experimental condition.
Commonly known as a "sugar pill", it is any substance/event that mimics the actual event but has no active properties.
Researcher's belief about what is likely to happen influences what happens.
Experiment in which neither the researcher nor the subject knows who is in the control conditions and who is in the experimental conditions.