The phrase "arguably contributed" is correct and usable in written English.
It can be used when discussing the extent to which someone or something has played a role in a particular outcome or situation, often implying that there is room for debate about the significance of that contribution.
Example: "The new policy arguably contributed to the increase in employee satisfaction across the company."
Alternatives: "possibly played a role" or "may have influenced".
Hughes admitted there was "a little bit of apprehension" in Southampton's play, yet his tactics and substitutions arguably contributed to that situation.
"We believe that in only one instance over the past seven years has the program arguably contributed to the identification of an unknown terrorism suspect.
These requirements have, the report says, "arguably contributed to a relative 'arms race' as, faced with increasing competition and an ever increasing need to stand out, aspirant bankers engage in increasingly focused efforts to build their CV".
Rather, as John Cassidy has pointed out, she's still explaining her 2002 vote to authorize the disaster in Iraq as well as her interventionist impulses that arguably contributed to making the situations in Syria and Libya worse.
A paucity of cultural diversity has arguably contributed to the Arab radicalism seen today and is a stark reminder of what happens to society when divergent voices are silenced and opinions ignored.
Steve Bettison insists on holding up "Atlas Shrugged" as a contemporary cautionary tale despite the fact that the present situation is essentially the inverse scenario and that an Ayn Rand devotee arguably contributed to the current mess.And because even economists have fantasies of being rock stars, the creator of Guitar Hero answers some questions for Freakonomics.
Creative learning opportunities through holiday activities, including actual holidays, are unaffordable and arguably contribute to the achievement gaps between poorer and more affluent children, according to US research.
Fortunately, the development of sophisticated computerized legal-information services and the Internet have greatly facilitated access to this literature, though they arguably contribute to what has been described as an excess of data.
But there is an answer to that line of thinking: after one attains a certain level of comfort, greater wealth arguably contributes only to social status, which philanthropy certainly bolsters.
Twitter, on the other hand, arguably contributes to the silencing of minority groups by giving hate speech and bullies a platform, making its inaction an object lesson in the Paradox of Tolerance.
It does not give us an explanatory account of the origins of the state, although it could arguably contribute to the explanation of the maintenance of a state once it exists.
