An experiment is valid if it..... a.can be replicated by another researcher and provide similar results b.can disprove the research hypothesis c.can accurately predict future behaviors d.measures what it is supposed to measure Correlation means that.... a.one variable causes another b.two variables are related c.one variable cannot exist without the other d.two variables actually mean the same thing, e.g., socio-economic status and household income Why is it important to use random assignment when determining which research participants will comprise the different treatment groups in the study? a.It is not important to use random assignment. b.Random assignment balances out the differences that might naturally exist between participants. c.Random assignment eliminates variability from research. d.Because there is no form of research that can be conducted without using random assignment. Psychologists use.......to measure the probability of a research finding occurring by random chance. a.statistical significance b.distributionsc.back-solving d.p-values
