PSYCH 101 Lecture Notes - Lecture 5: Demand Characteristics, Internal Validity, Random Assignment
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If you can demonstrate it using diff methods, operationalizing variables in diff ways, more likely that your theory is true of human behavior. Potential biases in research (threats to internal and external validity). Cue in environment of the study that tips off subject to what hypothesis is - some thing within environment of the study which allows the subject to figure out what the study is about. If a subject figures out how an experimenter is expecting you to behave, behavior becomes a product of whether they want to support hyp or not and not necessarily bc of the design or natural behavior. Threat to both internal validity (unsure of cause of results) and external (not naturally occurring) Run pilot studies or pretests run subjects through procedure that you have them do in the study and then probe them/ask them what they thought hyp was and why. If they know, you have to change procedure.
