1. select all posts grouped by threads 2. at := calculate median over count of posts
A high number of replies per thread characterises an engaging network with knowledge and ideas being discussed (Viol et al., 2016). Such a network thrives on active users, who initiate conversations and attract answers, leading to long discussion threads.
Hacker et al. (2015) argue that a high average value of replies per thread is an indicator for a lively discussion. Therefore in a network with a high average replies per thread, discussions take place. It indicates an engaging base of users, who interact and exchange ideas with each other.
Angeletou et al. (2011) describe a healthy network, in which there is high participation in topic discussions, that generate lots of replies. Discussions that are not driven forward, tend to die down, resulting in a large portion of unanswered threads. This can lead to a downwards spiral, in which the activity in the community decreases continuously.
A lively exchange of ideas and knowledge is a typical attribute of the closure theory. It is grounded in the creation of strong ties between the discussion partners facilitating collaboration and group work. Therefore, a high average replies per thread indicates Bonding Social Capital. A low average replies per thread indicates the lack of engaging discussions and community interactions and thus suggests a low level of Bonding Social Capital.