A major disadvantage of between-subjects designs is thatQuestion 7Answera.the effect of one treatment may alter the effectiveness of later treatments.b.one can use only a single independent variable.c.participant differences may obscure treatment effects.d.one must employ fewer independent variables.

What is a disadvantage of between participants design?Select one:a.It's difficult to work out the purpose of the experiment.b.There may be order effectsc.Individual differences may have an effectd.Additional stimuli needed.

Which of these is a disadvantage experiments have compared to other methods?Question 9Answera.They can ignore ethical issues more easilyb.They give a less clear picture of causalityc.Their results are not easily confirmed by applied studiesd.They are less able to consider more than one influence at once

Which of these is an advantage of the experiment, rather than something experiments are limited in doing?Question 4Answera.Have high external validityb.Easy to study many factors at the same timec.Can manipulate any variable you choosed.Can isolate causes free of any confounding variables

Which of the following is an important advantage of experiments over observational studies? Check all that apply. Ensuring that each subject in the trial receives the best possible treatment Isolating the effects of a specific treatment Guaranteeing that approximately the same number of subjects is assigned to each treatment group Controlling for lurking variables to have a stronger case for causation

Quasi-experimental designs have: A. An IV and a DV B. Non-random allocation of participants to conditions C. No IV or DV D. a and b above