Researcher conducts an experiment comparing two treatmentconditions and obtains

Question

Researcher conducts an experiment comparing two treatmentconditions and obtains data with 10 scores for eachtreatment. a). If reseacher used an independant- measures design, howmany subjects are in the experiment? b). Repeated measures design, How many participated? c).Used a matched-design, How many participated? Please show formulas and solutions. Researcher conducts an experiment comparing two treatmentconditions and obtains data with 10 scores for eachtreatment. a). If reseacher used an independant- measures design, howmany subjects are in the experiment? b). Repeated measures design, How many participated? c).Used a matched-design, How many participated? Please show formulas and solutions.

Explanation / Answer

a) If researcher used an independant- measures design, then theyare 20 subjects are in the experiment And the formula for this test is t = (x1-x2)/sqrt{s12/n1)+(s22/n2)} b) If researcher uses an repeated measures design then the numberof subjects that are participated is 10. Here we use the formula t = xd /( sd /n) c) matched pairs designs have internal validity because of matchingand matched pairs designs can be analyzed via the independentgroups t test

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.