Research on the Usefulness of Online Reading Community Reviews Based on IAM-I Model
Received date: 2021-09-22
Online published: 2025-04-28
[Purpose/Significance] Online review is an important carrier of knowledge exchange for users in reading community. In order to help the reading community improve the review system and raise the usefulness of book reviews, exploring the intermediary role of online interaction in the usefulness of book reviews will help to further tap the value of online review. [Method/Process] Based on IAM model, this paper constructed IAM-I online reading community review usefulness influencing factor model, and used OLS regression and Bootstrap mediation test to explore the effect mechanism of comment information characteristics and reviewer characteristics on review usefulness and the mediating effect of online interaction. [Result /conclusion] The results show that the characteristics of comment information and commentators can affect online interaction, online interaction plays a full mediating role in the relationship between the characteristic of text length and comment usefulness, and a partial mediating role in the relationship between the characteristics of commentators and comment usefulness. That is to say, online reading community can improve the usefulness of comments by encouraging online interaction.
Yu Juncheng , Li Ziqi . Research on the Usefulness of Online Reading Community Reviews Based on IAM-I Model[J]. Knowledge Management Forum, 2022 , 7(1) : 12 -23 . DOI: 10.13266/j.issn.2095-5472.2022.002
表1 模型变量与测度指标 |
| 变量类型 | 变量名 | 变量测量项 | 变量解释 |
| 因变量 | 评论有用性 | 评论有用性 | 有用投票数 |
| 自变量 | 文本长度特征 | 评论长度 | 评论字数长度 |
| 评论情感特征 | 评论情感倾向 | BaiduNLP计算得到,正面情感编码为1,中性情感编码为0,负面情感编码为-1 | |
| 评论者社会网络特征 | 评论者粉丝数 | 评论者的粉丝数量 | |
| 评论者关注人数 | 评论者所关注的人数 | ||
| 评论者活跃度 | 评论者历史评论数 | 评论者在系统中的历史评论数量 | |
| 中介变量 | 在线互动 | 评论回复情况 | 评论下方回复的评论数量 |
表2 样本描述性统计分析 |
| 变量 | 样本量 | 均值 | 标准差 | 方差 |
| 评论有用性 | 10 073 | 34.99 | 435.039 | 189 259.162 |
| 文本长度特征 | 10 073 | 1 429.56 | 2 123.381 | 4 508 747.206 |
| 评论情感特征 | 10 073 | 0.55 | 0.632 | 0.399 |
| 评论者粉丝数 | 10 073 | 136.45 | 220.854 | 48 776.504 |
| 评论者关注人数 | 10 073 | 1 239.29 | 8 442.946 | 71 283 338.16 |
| 评论者历史评论数 | 10 073 | 69.04 | 210.284 | 44 219.373 |
| 在线互动 | 10 073 | 5.07 | 41.768 | 1 744.548 |
表3 Pearson相关性分析 |
| 评论有用性 | 文本长度特征 | 评论情感特征 | 评论者粉丝数 | 评论者关注人数 | 评论者历史评论数 | 在线互动 | |
| 评论有用性 | 1.000 | 0.062** | 0.019* | 0.058** | 0.124** | -0.004 | 0.904** |
| 文本长度特征 | 0.062** | 1.000 | 0.070** | 0.048** | 0.049** | 0.010 | 0.066** |
| 评论情感特征 | 0.019* | 0.070** | 1.000 | 0.010 | 0.018* | -0.017* | 0.009 |
| 评论者粉丝数 | 0.058** | 0.048** | 0.010 | 1.000 | 0.240** | 0.095** | 0.073** |
| 评论者关注人数 | 0.124** | 0.049** | 0.018* | 0.240** | 1.000 | 0.106** | 0.125** |
| 评论者历史评论数 | -0.004 | 0.010 | -0.017* | 0.095** | 0.106** | 1.000 | -0.006 |
| 在线互动 | 0.904** | 0.066** | 0.009 | 0.073** | 0.125** | -0.006 | 1.000 |
注:**在 0.01 级别,相关性显著;*在 0.05 级别,相关性显著 |
表4 路径系数及假设检验结果 |
| 假设 | 路径 | 标准化系数 | t | P | 检验结果 |
| H1 | 文本长度特征→在线评论有用性 | 0.002 | 0.452 | 0.651 | 不支持 |
| H2 | 评论情感特征→在线评论有用性 | 0.011 | 2.503 | ** | 支持 |
| H3 | 评论者粉丝数→在线评论有用性 | -0.012 | -2.769 | ** | 支持(影响方向相反) |
| H4 | 评论者关注数→在线评论有用性 | 0.014 | 3.055 | ** | 支持 |
| H5 | 评论者历史评论数→在线评论有用性 | 0.002 | 0.383 | 0.702 | 不支持 |
| H6 | 文本长度特征→在线互动 | 0.058 | 5.894 | ** | 支持 |
| H7 | 评论情感特征→在线互动 | 0.002 | 0.190 | 0.849 | 不支持 |
| H8 | 评论者粉丝数→在线互动 | 0.114 | 4.442 | ** | 支持 |
| H9 | 评论者关注数→在线互动 | -0.023 | 11.183 | * | 支持(影响方向相反) |
| H10 | 评论者历史评论数→在线互动 | 0.058 | -2.306 | ** | 支持 |
注:**在 0.01 级别,相关性显著;*在 0.05 级别,相关性显著 |
表5 中介效应及Bootstrap分析结果 |
| 中介路径 | 效应值 | BootLLCI | BootULCI | BootSE | 检验结果 |
| 总效应:文本长度特征→在线评论有用性 | 0.012 8 | 0.008 8 | 0.016 8 | 0.002 0** | 完全中介 |
| 直接效应:文本长度特征→在线评论有用性 | 0.000 6 | -0.001 2 | 0.002 3 | 0.000 9 | |
| 中介效应:文本长度特征→在线互动→在线评论有用性 | 0.012 2 | 0.005 5 | 0.022 1 | 0.043 0* | |
| 总效应:评论情感特征→在线评论有用性 | 13.002 6 | -0.442 2 | 26.449 5 | 6.859 9* | 无中介作用 |
| 直接效应:评论情感特征→在线评论有用性 | 7.513 1 | 1.757 6 | 13.268 5 | 2.936 2** | |
| 中介效应:评论情感特征→在线互动→在线评论有用性 | 5.489 6 | -4.419 1 | 17.477 4 | 5.478 7 | |
| 总效应:评论者粉丝数→在线评论有用性 | 0.113 4 | 0.075 0 | 0.151 8 | 0.019 6** | 部分中介 |
| 直接效应:评论者粉丝数→在线评论有用性 | -0.017 2 | -0.033 7 | -0.000 7 | 0.008 4* | |
| 中介效应:评论者粉丝数→在线互动→在线评论有用性 | 0.130 6 | 0.077 2 | 0.196 4 | 0.031 9* | |
| 总效应:评论者关注数→在线评论有用性 | 0.006 4 | 0.005 4 | 0.007 4 | 0.000 5** | 部分中介 |
| 直接效应:评论者关注数→在线评论有用性 | 0.000 6 | 0.000 1 | 0.001 0 | 0.000 2** | |
| 中介效应:评论者关注数→在线互动→在线评论有用性 | 0.005 8 | 0.002 4 | 0.013 3 | 0.002 8* | |
| 总效应:评论者历史评论数→在线评论有用性 | -0.076 0 | -0.048 0 | 0.032 8 | 0.020 6 | 部分中介 |
| 直接效应:评论者历史评论数→在线评论有用性 | 0.003 6 | -0.013 7 | 0.020 9 | 0.008 8 | |
| 中介效应:评论者历史评论数→在线互动→在线评论有用性 | -0.011 2 | -0.024 6 | -0.000 1 | 0.006 2* |
余俊橙:论文模型构建,初稿撰写,论文修改
李梓奇:提出相关建议,论文修改
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