A random number generator was used to choose one hundred students from the fresh

Question

A random number generator was used to choose one hundred students from the freshman and sophomore classes of a mid-sized university to participate in a study designed to increase student interest in pursuing intemships and research opportunities at this university before their junior year. Using an alphabetical list of last names from the sample, the first 50 students were assigned to attend weekly hour-long meetings during which counselors from the university's career center would discuss with them opportunities for employment and graduate school options. The remaining 50 students also attended weekly hour-long meetings during which various campus issues were discussed, but there were no graduate school or career options. At the end of the fall semester, the Consideration of Future Consequences (CFC) scale was administered to the students in both groups 6. Was random selection used? Explain why or why not. 7. Was random assignment used? Explain why or why not. 8. Name the control and experimental groups 9. Write an appropriate null hypothesis and research hypothesis 10 If the mean CFC scores for the experimental and control groups are almost identical, the researcher should decide to: 11. Describe a Type I Error in this scenario. 2. Describe a Type I Error in this scenario. 13, Based on your answer for #10 above, which error could occur? Dr. Brian is interested in human memory performance while a person is being distracted. He recruited 105 undergraduate students from the OSU Psychology Research Experience Program pool. When they arrived for his experiment, he used a computer to generate a random number to indicate if each participant would be placed in a "White noise distraction group, a "Music distraction group, or a No distraction" group. He presented each of the groups with lists of words on a computer screen followed by a brief series of simple math problems. Finally, he tested their memory for the words by asking to type as many as they could remember with a computer keyboard 14. Was random selection used? Explain why or why not. 15. Was random assignment used? Explain why or why not. 16. Name the control and experimental groups 7. Write an appropriate nul hypothesis and research hypothesis 18. If the mean memory performance scores for the experimental and control groups are significantly different, the researcher should decide to 19. Describe a Type I Error 20. Describe a Type Il Error

Explanation / Answer

6) Yes, Random Selection was used.Random Selection refers to there being an equal chance of each member of the population to be selected in the representative sample.Since Random number generator was used, random selection was ensured.

7)No,Random Assignment was not used.Random Assignment is when each member of the sample has an equal chance of being chosen in any group in a study.Since alphabetical order of Last names were used, those with last names starting with the initial alpabets could only be assigned to the first condition, not second.This is not completely random.

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