student/Assignment-Responses/ lastdep-18007036 course 472340 677886 target web/S
ID: 3354268 • Letter: S
Question
student/Assignment-Responses/ lastdep-18007036 course 472340 677886 target web/Student/Ass upp se a statistics instructor wants to determine 1) if group study session are beneficial to students, and if so 2) whether or not the amount of time spent in group study makes a difference. Which of the s kreping track of the grades of all students in the class. Select all that apply. You have four tries, and you must pick only the correct scenarios for credt scenarios below refer to unbiased, controliled experiments that the instructor could run in order to answer one of these two research questions? For all of these scenarios, assume that the instructor Students are randomly assigned to four study groups. The instructor assigns a different number of study hours to each group. Students are randomly assigned to two groups. One is assigned to only study on an individual basis, while the other is assoted to participate in roup study 2 Each student in the class koeps a log of the hours he/she soends studying in a group, Students report the total number of study hours after the course is completesd students are randomly assigned to four groups. Each group votes on how m ch, studying they will do, and then stules that amount oach week Four groups are set up. Students in the first group are assigned to not study at all, students in the second group are assigned to study on an in du bass stude a the 3rd group are assigned to study 2 hours per week. Students in the 4th group are assigned to study 4 hours per week. Students then choose which group they want to be in anoth- The instructor p its all of the fresh nen in the class into one group all of the sophomores ito another, aa of the Miors mto another, and nnair al randomly picks a certain number of hours for each group to study per week. lesenors in In each experiment described below, choose whether the experiment is bänded, double blneded, or not blinded. You have one attenmpe per qoesti linical deseession, an experimenter randomly assigns sabjects who have been diagnosed with is a ple bo(Le, not real medication; . .sugar par). At the end of the three weeks, the experimenter 1) In an experiment to test the effectiveness of an anti depressant medication on c is the anta-depressant; the other depression Inventory questionnaire to all of the sut Type here to search DELLExplanation / Answer
Since we want an unbiased, controlled experiment, the students should be assigned into groups, and the number of study hours measured. Therefore options 1 & 2 are correct.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.