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Table 2. Summary of administration of experimental conditions
Communication Mode
Sequential
Parallel
•
Discussion Items Presentation:
Sequential
•
Discussion Items Presentation: Parallel
•
Transition: No transition required; all
items open throughout the experiment
•
Transition: Sequentially as decided by
leaders one item at a time
•
Leader: Allowed to modify procedures
•
Leader: Allowed to modify procedures
•
Revisit: Allowed for all items at any
time
•
Revisit: Not allowed for previously
discussed items
•
Discussion Items Presentation:
Sequential
•
Discussion Items Presentation: Parallel
•
Transition: No transition required; all
items are open throughout the
experiment
•
Transition: Sequentially by timetable,
one item at a time
•
•
Leader: No group leader
Leader: No group leader
•
Revisit: Not allowed for previously
discussed items
•
Revisit: Allowed for all items at any
time
Table 3. The results of the statistical analysis
Independent Variable: Group Leader
Dependent Variables
Means
SS
F
Pr > F
With
Without
Objective Decision Quality (H1)
After Six Months *
After One Year **
27,992
31,702
25,580
29,515
4.690
3.240
0.0360
0.0789
66,330,15
55,524,8
Perceived Decision Quality (H2)
27.32
26.84
2.766
0.400
0.5293
Consensus (H3)
11.57
10.90
4.727
2.19
0.1463
Satisfaction with Decision Process (H6) *
6.62
7.70
12.367
6.400
0.0152
Independent Variable: Communication Structuring
Dependent Variables
Means
SS
F
Pr > F
Parallel
Sequential
Objective Decision Quality (H1)
After Six Months
After One Year
26,994
30,818
26,638
30,454
1,290,644
1,290,661
0.094
0.070
0.7461
0.7918
Perceived Decision Quality (H2) *
27.94
26.29
36.160
5.260
0.0268
Consensus (H3)
11.66
10.85
7.716
3.57
0.0655
Satisfaction with Decision Process (H6) *
6.67
7.61
10.368
5.350
0.0255
* Significant at α= 0.05; ** Marginally significant at α= 0.10
Degree of Freedom: Model = 1; Error = 43
Table 4. Summary of hypotheses testing
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