The phrase "assertion based" is correct and usable in written English.
It can be used in contexts where you are describing something that is founded on or derived from assertions or claims.
Example: "The research is assertion based, relying heavily on the claims made by the participants."
Alternatives: "claim-based" or "statement-driven".
Williamson defends an account of assertion based on the rule that one must assert only what one knows.
The Boston Globe reported on Monday that Mr. Gore had made the assertion based on figures from a Congressional report, not on his family's actual drug bills.
Nicole Kidman won her Oscar as a suicide - though I think Woolf's demise in The Hours is an assertion, based on history and acted out, as opposed to something we feel.
His depleting figures on the Radio 1 Breakfast show have not stopped unadventurous execs believing that he remains the official go-to guy for all things in need of a teen spring clean, an assertion based solely on the height of his quiff and the fact that he spends weekends ramped up on rioja with Kate and Sadie in the Cotswolds.
Allowing political sentiment to trump science, regulators also cited the possibility that DDT posed a cancer risk for humans -- an assertion based on studies showing an increased incidence of the illness in mice that were fed extremely high doses of the pesticide.
Three spots for Mr. Bush, which came in for particular criticism, have said that Mr. Kerry supported a 50-cent-a-gallon50-cent-a-gallon50-cent-a-gallon50-cent-a-gallon commenthatrom Mr. Kerry thappearedred in two newspapers 10 years ago regarding a position he never acted on and has long since abandoned.
Some assertions, based on slim evidence, are almost literally imaginary.
To flesh out his theories, Mr. D'Souza tosses out lots of assertions based on false information, partial truths and unrepresentative anecdotes.
The story — bylined by Allen and Patrick O'Connor — made its assertions based largely on a single anonymous source and was refuted or seriously played down by two on-the-record sources.
Some months later, when faced with an investigative article that made many bold assertions based on deep and prolonged reporting, I wondered if I should give Si a full rundown of the piece and its preparation.
Rules are meant to derive conclusions and make assertions based on knowledge.
