The phrase "arguably contributed to" is correct and usable in written English.
It can be used when discussing the potential impact or influence of something, suggesting that there is a reasonable argument for its contribution.
Example: "The new policy arguably contributed to the increase in employee satisfaction across the organization."
Alternatives: "possibly played a role in" 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.
The lack of guidance and formalized approaches to the development and dissemination of iCBT has arguably contributed to the difficulty in developing iCBT that is scalable and sustainable beyond academic evaluation and that can ultimately be adopted by healthcare providers.
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.
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.
The Agriculture Department spends more than $100 billion on nutrition assistance and about $1 billion on food safety, both of which arguably contribute to public health.
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.
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.
