A young couple and three of their children, ages 11, four and three months, were killed in the March 11 attack. It is assumed to have been perpetrated by Palestinians.
Palestinian President Mahmoud Abbas called the attack "despicable, immoral and inhuman." The poll found 63 percent opposed the attack and 32 percent backed it.
Pollsters from Hebrew University and the Palestinian Center for Policy and Survey Research surveyed 1,270 Palestinians in the West Bank, Gaza Strip and Jerusalem. The margin of error was 3 percentage points.
The poll was published Wednesday.

