A researcher randomly assigns 33 subjects to one of three groups. Group 1 receives technical dietary...

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A researcher randomly assigns 33 subjects to one of threegroups. Group 1 receives technical dietary informationinteractively from an on-line website. Group 2 receives the sameinformation from a nurse practitioner, while Group 3 receives theinformation from a video tape made by the same nursepractitioner.
The researcher looked at three different ratings of thepresentation; difficulty, usefulness, and importance to determineif there is a difference in the modes of presentation. Inparticular, the researcher is interested in whether the interactivewebsite is superior because that is the most cost-effective way ofdelivering the information.
1. Run the appropriate analysis of the data and interpret theresults.
2. How could this study have been done differently? Why or whynot would this approach be better?
Group
Usefulness
Difficulty
Importance
1
20
5
18
1
25
9
8
1
23
15
20
1
16
9
22
1
20
6
22
1
28
14
8
1
20
6
13
1
25
8
13
1
24
10
24
1
18
10
20
1
17
9
4
2
28
7
14
2
25
14
5
2
26
9
20
2
19
15
22
2
29
14
12
2
15
6
2
2
29
10
5
2
26
11
1
2
22
5
2
2
15
15
14
2
29
6
4
2
15
6
3
3
22
8
12
3
27
9
14
3
21
10
7
3
17
9
1
3
16
7
12
3
19
9
7
3
23
10
1
3
27
9
5
3
23
9
6
3
16
14
22

Answer & Explanation Solved by verified expert

3.7 Ratings (718 Votes)

Aim of Research The researcher wanted to study effectiveness of interactive online information delivery system Hence research question formed here is is interactive online information delivery system effective than directoffline mode of information delivery The researcher has assigned 11 members to each group randomly without considering age educational background physiologic status etc Hence we do not know participants age group qualification profession interests physical ability etc Mode of Research 1 The researcher has delivered the dietary information to participants in group 1 with interactive online information delivery system For group 2 the same information is conveyed manually by nurse practitioner through direct contact For group 3 the information is delivered through taped video of nurse practitioner 2 After the information conveyed the See Answer

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Group	Usefulness	Difficulty	Importance
1	20	5	18
1	25	9	8
1	23	15	20
1	16	9	22
1	20	6	22
1	28	14	8
1	20	6	13
1	25	8	13
1	24	10	24
1	18	10	20
1	17	9	4
2	28	7	14
2	25	14	5
2	26	9	20
2	19	15	22
2	29	14	12
2	15	6	2
2	29	10	5
2	26	11	1
2	22	5	2
2	15	15	14
2	29	6	4
2	15	6	3
3	22	8	12
3	27	9	14
3	21	10	7
3	17	9	1
3	16	7	12
3	19	9	7
3	23	10	1
3	27	9	5
3	23	9	6
3	16	14	22