In a study on the effect of alcohol consumption, some participants drunk a non-alcoholic beverage that actually smelt and tasted like alcohol. This non-alcoholic drink was a__________ A. treatment condition B. placebo C. independent variable D. extraneous variable

In an experiment testing the effects of alcohol on performance, Group A receives 3 nonalcoholic beers, Group B receives 6 nonalcoholic beers, Group C receives 3 alcoholic beers, and Group D receives 6 alcoholic beers. The independent variable(s) in this experiment is/areQuestion 8Answera.number of drinks.b.level of performance after drinking.c.amount of alcohol.d.amount of alcohol and number of drinks.

Responding to substance like sugar pill as if it was a drug is called A. a placebo effect B. variability C. an extraneous factor D. psychosomatic illness

The tendency of a researcher to subtly and inadvertently affect the behavior of the participants in a study, obscuring the true effect of the independent variable, is called___________.a.Placebo effectb.The Hawthorne effect c.Evaluation apprehension effectd.Experimenter Bias effectClear my choice

Which of the following would be treated like an independent variable in a quasi-experimental study though it is not a true independent variable?1 分Number of others present (one, three, or five confederates)Drinking status (abstainer, social drinker, regular drinker, heavy drinker)Amount of time to study a list of words (one, five, or 15 minutes)Loudness of background noise (soft, moderate, loud)

_____ occur when the behavior of the participants is influenced by the experimenter's knowledge of who is in which condition.Multiple choice question.PlacebosExperimenter expectancy effectsSingle-blind studiesConfounding variables