Living with a mentally unsound domestic helper has ended in tragedies for some families.
But those active in migrant worker advocacy are against including psychological assessments in the mandatory medical check-up that all foreign domestic workers undergo before they are allowed to work in Singapore.
Mr Jolovan Wham, a social worker for migrant labour issues, called the idea "unfair" and "discriminatory".
He said: "I don't think that's right. Most companies don't demand psychological assessments when hiring. Why should domestic helpers be singled out?"
Mr Wham added that this could add to the stigma that foreign domestic workers are often troublemakers.
Dr Noorashikin Abdul Rahman, a board member of migrant workers group Transient Workers Count Too (TWC2), agreed.
Psychological tests should not be a part of any employment screening process, she said.
"It's not as if people who are suffering this kind of mental illness are not able to function. The illness can be managed," she said.
"What would be more important is for employers to really look out for signs since they are the ones in close contact with them."
The managing director of a maid agency said that such tests are impractical.