Blinding in Experiments
Blinding is a methodological practice used to minimize unintended variation, specifically experimenter expectancy effects and participant expectations. It involves arranging for the experimenters, the participants, or both to remain unaware of the research question or the specific condition to which each participant has been assigned.
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Related
Cause-and-Effect Relationship
Example of a Causal Claim in Experimental Research
Random Selection in Experiments
Random Assignment in Experiments
Logic of Causal Inference in Controlled Experiments
A researcher reviews the findings from four different studies. Which of the following conclusions could only have been drawn from a study using an experimental design?
Blinding in Experiments
Conditions for Causal Statements in Experiments
Blinding in Experiments
Rosenthal and Fode's Rat Maze Experiment
Blind Administration
Standardizing Interactions
Which of the following best describes the experimenter expectancy effect?
The experimenter expectancy effect can only occur when a researcher intentionally changes the study procedures to favor a desired outcome.
Learn After
A research team is studying the effects of a new energy drink on athletic performance. One researcher, who believes the drink is highly effective, is responsible for timing the athletes' sprints. This researcher is aware of which athletes consumed the new drink and which consumed a placebo. The results show that the athletes who consumed the new drink had significantly faster sprint times. Which of the following describes the most likely threat to the validity of this study's conclusion?
Double-Blind Study
Single-Blind Study
In a ______ experiment, both the researchers and the participants are kept unaware of which condition each participant has been assigned to.