Why is Class AB excluded in Pulse Asia's preference survey?

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Metro Manila (CNN Philippines, April 7) — Pulse Asia has recently released the results of its survey of presidential preferences for the 2022 elections. But over the past months, its surveys did not show any responses from Class AB.

Speaking to CNN Philippines' The Source on Thursday, Pulse Asia president Ronald Holmes explained why their survey did not include respondents from the upper socio-economic class.

"Sa amin kasi ang ginagawang sampling is random, ibig sabihin hindi ka pumipili ng (What we do is random sampling, which means you cannot choose a) respondent based on socio-economic classes. We follow a multi-stage random sampling," he said, noting that respondents are chosen in National Capital Region, Balance Luzon, Visayas, and Mindanao.

"Walang socio-economic class. The socio-economic class is only determined after respondents are interviewed," he added. "Walang excluded dito, pare-parehong may tsansa na maging bahagi ng survey. Yun nga lang pagkatapos mainterview lahat, walang respondent who can qualify is belonging to class AB."

[Translation: There is no socio-economic class. The socio-economic class is only determined after respondents are interviewed. So no one is excluded here. Everybody has equal chances of being part of the survey. However, once everyone is interviewed, no respondent can qualify as belonging to class AB.]

Holmes also reasoned that respondents from this class live in condominiums, gated subdivisions, or other areas with high security, which further lessens the chance of getting answers from the sector.

The last Pulse Asia survey that included Class AB was in December 2021, but they were combined with respondents from Class C. From January to March, only respondents from Classes CDE were grouped separately.

Presidential candidate Ferdinand "Bongbong" Marcos has been leading the polls, with a wide gap from rival Vice President Leni Robredo.

Marcos continued to dominate the March poll, despite a lower 56% score from 60% in February. Robredo's tally climbed to 24% from 15% in February, slightly narrowing the gap with Marcos' score.

Manila Mayor Isko Moreno remained at the third spot with 8% voter share. He was followed by Senator Manny Pacquiao with 6% and Senator Panfilo Lacson with 2%.

Among the socioeconomic groups, Marcos logged 56% both in Classes C and D, and 52% in Class E. Robredo, however, tallied big gains among these groups. Compared with the February results, she recorded an improved rating from 17% to 30% in Class C, 14% to 24% in Class D, and 13% to 22% in Class E.

Pulse Asia said 2,400 adult respondents were interviewed face-to-face when the survey was conducted from March 17 to 21. The number of sample barangays was also distributed among 17 regions proportional to population size. In each sample barangay, five probability respondents were selected.

Holmes estimated that the largest number of respondents came from Class D, with 75% of the adult population. Class E comprises 15%, while Class C comprises 10%.