Davao City Mayor Rodrigo Duterte is slowly inching his way to the top as the latest Social Weather Stations (SWS) survey showed him statistically tied with Sen. Grace Poe.
In its March 30 Mobile Survey, the SWS said Poe got a 34 percent rating while Duterte got 31 percent. Poe’s rating is one percentage point lower than her showing in the March 22 survey, while Duterte significantly gained five points.
The survey, first published in BusinessWorld on Monday, has sampling error margins of ±4 percent for national percentages, ±7 percent in Metro Manila and Visayas and ±8 percent in Balance Luzon and Mindanao because of a decline in the number of respondents since the surveys began.
Former Interior Secretary Manuel Roxas 2nd and Vice President Jejomar
Binay both got 17 percent.
From the three mobile surveys conducted on March 18, 22 and 30, the pollster was able to track how the respondents changed preferences.
The SWS explained that the mobile survey is conducted through mobile phones.
For this particular survey period, only 733 or 61 percent responded to at least two to three questions.
Of the 34 percent who chose Poe on March 30, 24 percent also voted for her on March 22, while two percent were former Binay voters, two percent were former Roxas voters and one percent were former Duterte voters.
Of the 31 percent who chose Duterte, 20 percent were solid Duterte voters, two percent switched from Poe, one percent switched from Roxas and one percent switched from Binay.
Of the 17 percent who chose Roxas, 13 percent were solid Roxas and one percent switched from Poe.
Of the 17 percent who chose Binay, 13 percent were solid Binay since March 22 and one percent switched from Poe.
“The Bilang Pilipino SWS Mobile Survey uses a nationally representative sample of 1,200 validated voters, 300 each in Metro Manila, Balance of Luzon, Visayas and Mindanao,” the SWS said in its report on the survey.
“These voters were invited, and had then agreed, to be members of a panel of respondents to receive and reply to a few survey questions each day using mobile phones provided to them for free by Starmobile,” it added.