Any variable, other than the IV that may affect the DV if it is not controlled
What is a confounding variable?
A kind of extraneous variable but the key feature is that a confounding variable varies systematically with the IV.
What are demand characteristics?
Demand characteristics refer to cues or clues in a research setting that may influence participants to respond in a certain way, potentially biasing the results of the study.
What are investigator effects?
Biases or influences that investigators may have on the research process or outcomes.
What is randomisation?
The use of chance method to control for the effects of bias when designing materials and deciding the order of experimental conditions.
What is standardisation?
Standardisation is the process of establishing and implementing uniform guidelines, specifications, or protocols for a particular industry or product.