NGO Invoke says its survey on the 14th general election is based on accumulated data from 500,000 voters, contrary to PAS president Abdul Hadi Awang’s claim it does not reflect ground sentiment.

The think-tank's founder Rafizi Ramli said Hadi may not understand what survey methodology is all about when he dismissed Invoke's survey on his party's poor chances of winning seats in the looming national polls as “not based on ground sentiments".

Hadi's remarks on the matter sounds as if he does not understand that survey methodology involves talking directly to people on the ground, Rafizi said.