Rhoda dendron - Study guides, Class notes & Summaries

PSY 550 Final Exam: Research Methods Instructions: This is an open-book and open-notes exam. You have 2hours to complete the exam. The test is worth 100 points; each item is worth 10 points. Chuck Wagon is very excited about the within-subjects approach. “Now I’ll never need to run large numbers of subjects again,” he says. However, Chuck has forgotten that within-subjects designs may be a) useless, b) impossible, c) confounded by order effects, or d) impractical when excessive subject t...

• For each of the following examples, explain whether the researcher has made a correct decision or has made a Type 1 or Type 2 error. Explain why. 1. Dr. G rejects the null hypothesis although the independent variable had no effect. 2. Dr. R rejects the null hypothesis when it is false. 3. Although the independent variable had an effect, Dr. E does not reject the null hypothesis Your Answer: 1. Type I error is made when we reject the null hypothesis, but the null hypothesis is actually t...