# Self-Disclosure to an IoT Conversational Agent: Effects of Space and User Context on Users'
## 4 Experiment 2: Interaction Between Two Users and an IoT-CA
### Results
#### 4.2.2 Test of Hypotheses  
H1: Information type in self-disclosure. The data of self-disclosure (six information types) were not normally distributed; thus, nonparametric tests were used for analysis. The results of [PERSON]'s ANOVA showed that the effect of the types of personal information (i.e., attitudes and opinions, tastes and interests, work, money, personality, and body) was significant (\(\chi^{2}=129.72\), \(p<0.001\)). This revealed that the participants in dyads had various levels of self-disclosure according to the information types. The results of post-hoc tests are listed in descending order of the means in Table 3. Of the six information types, participants were most willing to disclose information about tastes and interests and least willing to disclose money information. Therefore, Hypothesis 1 is partially supported in the two-user context.  
The information types that users were willing to disclose to an IoT-CA in the two-user context can be classified into four levels: high self-disclosure (tastes and interests), medium-high self-disclosure (work along with attitudes and opinions), medium-low self-disclosure (body and personality), and low self-disclosure (money).  
\begin{table}
**TA and IN** & & & & & & \\
**Work** & \textless{}0.001 *** & & & & & \\
**AT and OP** & \textless{}0.001 *** & 0.320 & & & & \\
**Body** & \textless{}0.001 *** & \textless{}0.001 *** & \textless{}0.001 *** & & & \\
**Personality** & \textless{}0.001 *** & \textless{}0.001 *** & \textless{}0.001 *** & 0.297 & & \\
**Money** & \textless{}0.001 *** & \textless{}0.001 *** & \textless{}0.001 *** & \textless{}0.001 *** & \textless{}0.001 *** & \\ \hline Mean & 6.00 & 4.36 & 4.08 & 3.55 & 3.40 & 2.64 \\ \hline SD & 0.88 & 1.62 & 1.49 & 1.66 & 1.55 & 1.67 \\ \hline \hline \end{tabular} \({}^{*}p<0.05\), \({}^{**}p<0.01\), \({}^{***}p<0.001\).  
\end{table}
Table 3: Summary of post-hoc tests for self-disclosure in Experiment 2. SFD: self-disclosure, TA and IN: tastes and interests, AT and OP: attitudes and opinions.  
H2: Effects of the spaces on self-disclosure. A Wilcoxon rank-sum test shows that the roommates significantly disclosed more information than the colleagues (living space: mean = 4.49 (SD = 1.23); workspace: mean = 3.52 (SD = 1.05), W = 420, \(p\) < 0.01). Thus, Hypothesis 2 was supported in the two-user context. Specifically, participants in the living space disclosed 28% more information than in the workspace.  
H3: Mediated effect of self-awareness on self-disclosure. The data of private and public self-awareness were normally distributed. The results of a t-test showed that roommates and colleagues had the same levels of private self-awareness (roommates: mean = 5.02, SD = 1.35; colleagues: mean = 5.24, SD = 1.28, \(p\) = 0.557) and public self-awareness (roommates: mean = 3.30, SD = 1.36; colleagues: mean = 3.16, SD = 1.53, \(p\) = 0.729). This revealed that, compared with the colleagues, the roommates did not have higher private self-awareness or lower public self-awareness. The roommates' private self-awareness was not significantly correlated with their self-disclosure (r = 0.31, \(p\) = 0.137). Moreover, the colleagues' public self-awareness was not significantly correlated with their self-disclosure (r = 0.13, \(p\) = 0.540). Therefore, Hypothesis 3 was not supported in the two-user context.