An Air Force introductory course in electronics uses a personalized system of instruction whereby ...
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An Air Force introductory course in electronics uses a personalized system of instruction whereby each student views a videotaped lecture and then is given a programmed instruction text. The students work independently with the text until they have completed the training and passed a test. Of concern is the varying pace at which the students complete this portion of their training program. Some students are able to cover the programmed instruction text relatively quickly, whereas other students work much longer with the text and require additional time to complete the course. The fast students wait until the slow students complete the introductory course before the entire group proceeds together with other aspects of their training.
A proposed alternative system involves use of computer-assisted instruction. In this method, all students view the same videotaped lecture and then each is assigned to a computer terminal for further instruction. The computer guides the student, working independently, through the self-training portion of the course.
To compare the proposed and current methods of instruction, an entering class of 122 students was assigned randomly to one of the two methods. One group of 61 students used the current programmed-text method and the other group of 61 students used the pro- posed computer-assisted method. The time in hours was recorded for each student in the study. The following data are provided in the data set Training.
Current
Proposed
76
74
76
75
77
77
74
78
76
74
74
80
74
73
77
73
72
78
78
76
73
76
78
74
75
77
80
69
79
76
72
75
69
72
79
75
72
72
70
76
70
72
81
77
76
73
78
77
72
69
82
77
72
75
73
76
71
74
70
77
77
75
78
78
73
72
79
77
82
78
65
78
77
76
79
75
73
76
76
76
81
75
69
76
75
80
75
77
77
76
79
75
76
73
78
77
76
77
76
77
73
79
77
75
84
75
74
72
74
82
69
76
79
76
66
74
70
72
74
78
72
71
1. Ask TWO research questions, one about the difference between the means and the other about the difference between the variances of two populations. Carefully indicate which population is the first and the second population.
2. Form TWO hypothesis that reflects your research questions and will help you answer them.
3. Summarize data by finding descriptive statistics (means and standard deviations) and commenting on them.
4. Test your hypothesis on the difference of population means at 0.05 significance level.
8 years ago
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AnAirForceintroductorycourseinelectronicsusesapersonalizedsystemofinstructionwherebyeachstudentviewsavideotapedlectureandthenisgivenaprogrammedinstructiontext.doc
