The phrase "are motivated based on" is correct and usable in written English.
It can be used when discussing the reasons or factors that drive someone's motivation or actions.
Example: "Employees are motivated based on their personal goals and the incentives provided by the company."
Alternatives: "are driven by" or "are inspired by".
Human Rights Watch says the case against him is politically motivated, based on his environmental group's criticism of Sochi construction.
The U.S. State Department called Tuesday for the government to immediately release Mam Sonando, saying, "A number of observers in Cambodia have noted that the charges against him appear to have been politically motivated, based on his frequent criticism of the government".
The complaint is politically motivated, based on false allegations, and wholly without merit.
Responders were significantly younger than non-responders, and participants had fewer cognitive and physical problems and might, for instance, have had better access to healthcare and been more motivated based on hope of personal gain.
Such calls are largely politically motivated, but are nonetheless based on a profound misunderstanding of an instrument which broadly mirrors bills of rights the world over, save that unlike most, it does not allow courts to overturn acts of parliament.
But it also violates a more fundamental tenet of medical care: that providers be able to counsel patients about their medical options free from external interference by politically motivated rules that aren't based on evidence.
In many matters of life, motivated reasoning masquerades as cold reasoning and "rational" thought, when in fact, it is reason that is based on an emotional response.
These grand narratives of science and of our contemporary society are not deliberate attempts to mislead, but are based on a series of motivated decisions that are to some extent discretionary.
That is, the religiously motivated laws creeping into public policymaking aren't based on the Koran, and they aren't coming from mythical hard-line Islamists in, say, Dearborn, Mich.
There are studies based on rigorous research which have emphatically concluded that politically motivated violence is, by and large, not dependent on the economic conditions of the actors.
