The phrase "a factor in which" is correct and usable in written English.
It can be used when discussing a specific element or aspect that contributes to a particular situation or outcome.
Example: "The economic climate is a factor in which businesses must adapt their strategies to survive."
Alternatives: "a factor that influences" or "a contributing element to".
"When you're in this kind of a stressful setting in which shock can be a factor, in which we journalists can unwittingly cause or exacerbate pain, we have to flip the script and give the control to the interviewee," he said.
Factor analysis showed a factor in which patients with eating disorders were construed as vulnerable to external pressures (such as from others and the media) and, moreover, their illness was seen as self-induced.
The length of stay will also be a factor in which home you choose to rent since certain homes may have limited rental openings.
Thanks to the college football playoffs, F.B.S. teams are paying more attention to strength of schedule, which can be a factor in deciding which teams get in.
On the one hand, weather conditions for instance may be a factor in deciding which flight plan to file or which runway configuration to use.
Student attendance rates would also be a factor in determining which teachers got merit bonuses, he said.
Although not necessarily related to price, projected lamp life could be a factor in determining which to buy.
"For years to come it would certainly be a factor in determining which projects move ahead," he said.
Speed of construction will no longer be a factor in determining which boat will be the winner.
The policy, known as comprehensive review, has been criticized as a covert way of reviving race as a factor in admissions, which is banned by state law.
Aidan O'Brien still has seven horses entered, including US Army Ranger, the general 4-1 fandurite, and said the forecast could be a factor in deciding which of them take part.
