# Research on Factors Affecting Solvers' Participation Time in Online Crowdsourcing Contests
## 5 Empirical Results
Column 3 shows that we added the description length and description attachment and found that the relationship between the length of description and participation time is negative, with a significance level of \(p<0.001\). The relationship between description attachment and the participation time is positively significant, with significance level of \(p<0.001\). Thus, hypothesis 2a and 2b are proved. Column 4 shows that we added task communication and supplemented instructions with attachment and the results describe that both variables were positively related to participation time, thus, Hypothesis 3a and 3b are certified. Column 5 adds the task density and market price and it also concludes all the variables in this regression. The regression coefficient of the task density was negative, with a significance level of \(p<0.05\), and the regression coefficient of the market price was positive, with significance level of \(p<0.01\). Thus, hypothesis 4a and 4b are proved. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & **Mean** & **Std** & **Min** & **Max** & **N** \\ \hline Participation Time & 892.1 & 1752 & 0.333 & 53,092 & 2500 \\ Task Rewards & 529.5 & 708.8 & 100 & 20,000 & 2500 \\ Task Duration & 29.21 & 45.66 & 0.19 & 728.2 & 2500 \\ Description length & 403.8 & 398.7 & 0 & 2419 & 2500 \\ Description Attachment & 0.234 & 0.423 & 0 & 1 & 2500 \\ Task Feedback & 1.205 & 1.677 & 0 & 19 & 2500 \\ Extra Explanation & 0.292 & 0.455 & 0 & 1 & 2500 \\ Task Density & 38.84 & 9.255 & 6 & 65 & 2500 \\ Market Price & 526.8 & 122.1 & 284 & 1357 & 2500 \\ Seeker’s Credit & 15.85 & 24.47 & 0 & 210 & 2500 \\ Seeker’s Experience & 3.892 & 6.232 & 1 & 67 & 2500 \\ Seeker’s Authentication & 0.161 & 0.368 & 0 & 1 & 2500 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Descriptive statistic. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline  & **1** & **2** & **3** & **4** & **5** & **6** & **7** & **8** & **9** & **10** & **11** & **12** \\ \hline
1 Participation Time & 1 & & & & & & & & & & \\
2 Task Rewards & 0.2083 * & 1 & & & & & & & & \\
3 Task Duration & 0.2044 * & 0.1057 * & 1 & 1 & & & & & & \\
4 Description length & 0.0708 * & 0.2460 * & 0.0275 & 1 & & & & & & \\
5 Description & 0.0551 * & 0.0374 & \(-\)0.0027 & 0.0096 & 1 & & & & & \\
6 Task Feedback & 0.2084 * & 0.3337 * & 0.1081 * & 0.0449 & 0.035 & 1 & & & & \\
7 Extra Explanation & 0.1245 * & 0.046 & \(-\)0.0003 & 0.0139 & 0.2087 * & 0.156 * & 1 & & & \\
8 Task Density & \(-\)0.0132 & 0.0002 & \(-\)0.0085 & \(-\)0.0139 & 0.0046 & \(-\)0.0941 * & 0.0138 & 1 & & \\
9 Market Price & 0.0492 & 0.1756 * & 0.0231 & 0.0581 * & \(-\)0.0185 & 0.0089 & 0.0012 & 0.0128 & 1 & \\
10 Seeker’s Credit & 0.1167 * & 0.4157 * & 0.1210 * & 0.0639 * & 0.0728 * & 0.0964 * & \(-\)0.0161 & 0.0049 & 0.0905 * & 1 & \\
11 Seeker’s & \(-\)0.0188 & \(-\)0.0446 & 0.1231 * & \(-\)0.0664 * & 0.0463 & \(-\)0.0624 * & \(-\)0.0401 & 0 & \(-\)0.012 & 0.6348 * & 1 \\
12 Seeker’s Authentication & 0.0117 & 0.0238 & \(-\)0.0034 & \(-\)0.0221 & 0.0429 & 0.0496 & 0.0203 & 0.0064 & 0.0119 & 0.2321 * & 0.1710 * & 1 \\ \hline \hline \end{tabular} Note: The asterisk (*) indicates that the correlation coefficient is significant at a confidence level of 0.01.  
\end{table} 
Table 3: Correlation of variables.