Results for the surveys are based on telephone interviews in the U.S. and face-to-face interviews in all other nations, conducted under the direction of Princeton Survey Research Associates International. The surveys in Guatemala, Nigeria, the Philippines and the U.S. are based on national samples. The survey in Chile is based on a national sample but excludes non-continental and remote areas, and the survey in Kenya is based on a national sample but excludes the largely Muslim North Eastern Province. In Brazil, South Africa and South Korea, the surveys are based on urban samples.

In India, the survey was conducted in three states believed to have among the highest percentage of Christians in India: Tamil Nadu, Kerala and Meghalaya. Within the three selected states, districts with the highest proportion of Christians were first selected, and then sampling points were randomly selected from these districts. This survey is NOT representative of the general population of India, nor is it representative of the population of the three Indian states in which it was conducted.

In each country, interviews were conducted among the general public and among oversamples of renewalists. The information below details the number of interviews conducted among the general public in each country, as well as the total number of interviews conducted among pentecostals and charismatics.

The country information also shows the margin of sampling error based on all interviews conducted among three groups – the general population, pentecostals and charismatics. For results based on the full sample in a given country, one can say with 95% confidence that the error attributable to sampling and other random effects is plus or minus the margin of error indicated for each group. In addition to sampling error, one should bear in mind that question wording and practical difficulties in conducting surveys can introduce error or bias into the findings of opinion polls.

Brazil Survey Firm: Research International Brazil Sample design: Probability sample of urban cities Mode: Face-to-face with adults 18+ Language: Portuguese Fieldwork dates: May 13 – May 30, 2006 Data processing: June 1 – July 25, 2006 Sample size: General public – 700; Pentecostals – 313; Charismatics – 329 Margin of Error: General public 4%, Pentecostals 6%, Charismatics 5%

Chile Survey Firm: MORI Chile Sample design: National probability sample, excluding non-continental and remote areas Mode: Face-to-face with adults 18+ Language: Spanish Fieldwork dates: May 12 – May 28, 2006 Data processing: June 28 – July 25, 2006 Sample size: General public – 600; Pentecostals – 276; Charismatics – 286 Margin of Error: General public 4%, Pentecostals 6%, Charismatics 6%

Guatemala Survey Firm: MERCAPLAN Sample design: National probability sample Mode: Face-to-face with adults 18+ Language: Spanish Fieldwork dates: May 5 – May 31, 2006 Data processing: June 26 – July 25, 2006 Sample size: General public – 1,005; Pentecostals – 410; Charismatics – 487 Margin of Error: General public 3%, Pentecostals 5%, Charismatics 4%

India Survey Firm: TNS India Sample design: Probability sample of disproportionately Christian districts of three states–Tamil Nadu, Kerala and Meghalaya Mode: Face-to-face with adults 18+ Languages: Hindi, Tamil and Malayalam Fieldwork dates: May 16 – June 9, 2006 Data processing: July 5 – July 25, 2006 Sample size: General public – 726; Pentecostals – 409; Charismatics – 125 Margin of Error: General public 4%, Pentecostals 5%, Charismatics 9%

Kenya Survey Firm: Research Path Associates Sample design: National probability sample, excluding North Eastern Province Mode: Face-to-face with adults 18+ Languages: English and Kiswahili Fieldwork dates: May 17 – May 26, 2006 Data processing: June 29 – July 25, 2006 Sample size: General public – 655; Pentecostals – 403; Charismatics – 306 Margin of Error: General public 4%, Pentecostals 5%, Charismatics 6%

Nigeria Survey Firm: Research International Nigeria Sample design: National probability sample Mode: Face-to-face with adults 18+ Languages: Yoruba, Igbo, Hausa and English Fieldwork dates: May 15 – July 27, 2006 Data processing: July 31 – August 4, 2006 Sample size: General public – 650; Pentecostals – 483; Charismatics – 67 Margin of Error: General public 4%, Pentecostals 4%, Charismatics N/A (Due to the small number of Nigerian charismatics surveyed, results for Nigerian charismatics are not presented in this report.)

Philippines Survey Firm: TNS Philippines Sample design: National probability sample Mode: Face-to-face with adults 18+ Languages: Tagalog, Cebuano and Ilonggo Fieldwork dates: May 6 – May 29, 2006 Data processing: June 19 – July 25, 2006 Sample size: General public – 1,000; Pentecostals – 309; Charismatics – 433 Margin of Error: General public 3%, Pentecostals 6%, Charismatics 5%

South Africa Survey Firm: Markinor Sample design: National probability sample of urban areas Mode: Face-to-face with adults 18+ Languages: Afrikaans, Pedi, Sotho, Tswana, Xhosa, Zulu and English Fieldwork dates: May 11 – May 27, 2006 Data processing: June 26 – July 25, 2006 Sample size: General public – 800; Pentecostals – 259; Charismatics – 344 Margin of Error: General public 3%, Pentecostals 6%, Charismatics 5%

South Korea Survey Firm: Gallup Korea Sample design: National probability sample of urban cities Mode: Face-to-face with adults 18+ Language: Korean Fieldwork dates: May 8 – May 26, 2006 Data processing: June 18 – July 25, 2006 Sample size: General public – 600; Pentecostals – 131; Charismatics – 333 Margin of Error: General public 4%, Pentecostals 9%, Charismatics 5%

United States Survey Firm: Princeton Survey Research Associates International Sample design: National probability sample Mode: Telephone Languages: English and Spanish Fieldwork dates: July 20 – September 7, 2006 Data processing: September 8 – September 12, 2006 Sample size: General public – 739; Pentecostals – 119; Charismatics – 421 Margin of Error: General public 4%, Pentecostals 9%, Charismatics 5%