World Values Survey – Vietnam (2001)

  • To gather a nationally representative sample using area probability sampling method, 20 provinces were randomly chosen among the 61 provinces of the country. The chosen provinces were distributed across eight census regions.
  • Of the 20 provinces, a proportionate sample calculated by the province’s population determined the number of districts to be drawn for each province.
  • From each chosen district, two villages or wards were randomly selected.
  • For each village or ward, eight households were chosen using a designated-walk procedure.
  • A member of the household who is over 18 and has the closest birthday was approached for the interview. No other person may be substituted.
  • The desired sample was 1,000. The number of households contacted included an over-sampling of 1,300 for estimated potentially high non-response rates.
  • Interviewing was conducted between August 28 and September 30, 2001.

Below is the distribution of provinces across eight regions and the number of districts chosen per province (in parentheses):


  • Red River Delta: Ha Noi (8), Hung Yen (3), Ha Nam (2), Thai Binh (6)
  • Northeast: Lao Cai (3), Phu Tho (5), Bac Giang (6)
  • Northwest: Lai Chau (3)
  • North Central: Thanh Hoa (10), Ha Tinh (3)
  • Central Coast: Quang Nam (4), Binh Dinh (5)
  • Central Highlands: Dac Lac (4)
  • Southeast: Ho Chi Minh City (13), Lam Dong (2), Binh Phuoc (2)
  • Mekong River Delta: Dong Thap (5), An Giang (6), Ben Tre (4), Can Tho (6)


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