Is お父さん appropriate for formal writing?


As I understand it お父さん is the usual way to refer to someone else's father in
everyday speech.

What about when you are writing a formal discussion (for an academic audience)
of an interview you had with someone? Is 父 or 父親 better for this?




I would suggest the exact opposite, when writing especially for an academic
audience you should minimize the amount of 敬語 as there specific styling for
just that use case (である/だ vs. です)

according to a tertiary search on Google, it seems just using 父 and 母 is best.

<http://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1244256012>




I would take no risk, and go with お父様.

In my understanding, 父親 is more like the generic word for father. From
<http://jisho.org>:  

> Father  
>  A father (or dad) is defined as a male parent or Individual progenitor of
> human offspring.

