  Virtual reality interview simulator (VRIS) provides an effective and
manageable approach for candidates prone to being very nervous during
interviews, yet, the major anxiety-inducing elements remain unknown. During an
interview, the anxiety levels, overall experience, and performance of
interviewees might be affected by various circumstances. By analyzing
electrodermal activity and questionnaire, we investigated the influence of five
variables: (I) \textit{Realism}; (II) \textit{Question type}; (III)
\textit{Interviewer attitude}; (IV) \textit{Timing}; and (V)
\textit{Preparation}. As such, an orthogonal design $L_8(4^1 \times 2^4)$ with
eight experiments ($O A_8$ matrix) was implemented, in which 19 college
students took part in the experiments. Considering the anxiety, overall
experience, and performance of the interviewees, results indicate that
\textit{Question type} plays a major role; secondly, \textit{Realism},
\textit{Preparation}, and \textit{Interviewer attitude} all have some degree of
influence; lastly, \textit{Timing} have little to no impact. Specifically,
professional interview questions elicited a greater degree of anxiety than
personal ones among the categories of interview questions. This work
contributes to our understanding of anxiety-stimulating factors during job
interviews in virtual reality and provides cues for designing future VRIS.
