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...P mrm fyx uks qc t pb jonassen v cls august char count experimentalresearchmethods steven m ross the university of memphis gary r morrison waynestate validity using multiple outcome measures to assess learning evolutionofexperimental processes and products item responses vs aggregate researchmethods scoresasdependentvariables reportingeffectsizeasacomple menttostatisticalsignicance andmediareplicationsvs media experimental research has had a long tradition in psychology comparisons andeducation when emerged as an infant science duringthes itmodeleditsresearchmethodsontheestab lished paradigms physical sciences which for centuries whatisexperimentalresearch relied on experimentation derive principals laws subse quent reliance approaches was strengthened theexperimentalmethodformallysurfacedineducationalpsy bybehavioralapproachestopsychologyandeducationthatpre chologyaroundtheturnofthecentury withtheclassicstudies dominatedduringthersthalfofthiscentury thus usageofex by thorndike woodwor...