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)

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.

In a study to determine whether how long a student sleeps affects test scores, the independent variable is the length of time spent sleeping while the dependent variable is the test score.Group of answer choicesTrueFalse

independetent variables that are not related to purpose of the study, but may affect the dependent variable is termed as?

Independent variables that are not related to the purpose of the study, but may affect the dependent variable are termed as ___________Choose one optionIndependent variableDependent variableExtraneous variableNone

An experimenter conducts a study that seeks to measure differences in responding (answering a questionnaire at the end of the session) after subjects watch a comedy or horror movie. In this study, which variable is considered the "independent variable"?Question 15Select one:a.The questionnaire at the end of the sessionb.The movie (comedy or horror)c.The age and gender of the participantd.The location in which the study takes placee.The individual conducting the experiment.