Research Article
Modeling and Simulation Study of Designer’s Bidirectional Behavior of Task Selection in Open Source Design Process
Table 4
ANOVA of task selection behaviors.
| (a) Descriptives |
| | Sample | | | | Mean | Std. deviation | Std. error | 95% confidence interval for mean | Minimum | Maximum | | Lower bound | Upper bound |
| | 1 | 100 | 391.520000 | 23.3949317 | 2.3394932 | 386.877938 | 396.162062 | 334.0000 | 451.0000 | | 2 | 100 | 373.100000 | 25.8732341 | 2.5873234 | 367.966189 | 378.233811 | 293.0000 | 432.0000 | | 3 | 100 | 364.810000 | 22.5266150 | 2.2526615 | 360.340231 | 369.279769 | 310.0000 | 423.0000 | | Total | 300 | 376.476667 | 26.3800901 | 1.5230552 | 373.479401 | 379.473932 | 293.0000 | 451.0000 |
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| (b) Test of homogeneity of variances |
| | Sample | | Levene statistic | df1 | df2 | Sig. |
| | 1.025 | 2 | 297 | .360 |
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| (c) ANOVA |
| | Sample | | | Sum of squares | df | Mean square | | Sig. |
| | Between groups | 37381.487 | 2 | 18690.743 | 32.521 | .000 | | Within groups | 170695.350 | 297 | 574.732 | | | | Total | 208076.837 | 299 | | | |
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| (d) Multiple comparisons |
| | Dependent variable: sample | | LSD | | () group | () group | Mean difference (-) | Std. error | Sig. | 95% confidence interval | | Lower Bound | Upper Bound |
| | 1 | 2 | 18.4200000 | 3.3903741 | .000 | 11.747800 | 25.092200 | | 3 | 26.7100000 | 3.3903741 | .000 | 20.037800 | 33.382200 | | 2 | 1 | −18.4200000 | 3.3903741 | .000 | −25.092200 | −11.747800 | | 3 | 8.2900000 | 3.3903741 | .015 | 1.617800 | 14.962200 | | 3 | 1 | −26.7100000 | 3.3903741 | .000 | −33.382200 | −20.037800 | | 2 | −8.2900000 | 3.3903741 | .015 | −14.962200 | −1.617800 |
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The mean difference is significant at the .05 level.
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