"Questionable claims" refers to statements or assertions that are not certain, reliable, or proven to be true. These claims are doubtful and raise suspicions or doubts about their accuracy or truthfulness. Full definition
For instance, drug companies have manipulated research in ways that have led to questionable science supporting questionable claims of a drug's efficacy. (scientificamerican.com)
Insurance investigator with 15 years experience investigating questionable claims for injuries or damage. (livecareer.com)
Some of it can be attributed to living situations, some of it can be attributed to the odd questionable claim, and some of it can be attributed to other factors. (effectivecoverage.com)