polling and the ballot in venezuela mark weisbrot november 10, 2006

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Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

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Page 1: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Polling and the Ballot In Venezuela

Mark WeisbrotNovember 10, 2006

Page 2: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Recall Election

• National referendum on whether to recall President Chavez, held in Venezuela on August 15, 2004

Page 3: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Results

• Results, according to the National Electoral Council: 58.3-41.4% reconfirming Chavez.

• Carter Center and the Organization of American States observers confirmed that election was free and fair, and without evidence of fraud

Page 4: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Pre-Election Reporting

• Pre-election news reports said results were “too close to call”

Page 5: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

How likely is it that a random sample of the electorate polled before the election would

find the result “too close to call”?

Table 1: Probability of a Poll Result of “Too Close to Call” Poll

Sample Size

Poll Percent

Margin of Error (+/-)

Approximate Probability of

“Too Close to Call” Result

100 9.9 2 in 3

500 4.4 1 in 25

1000 3.1 1 in 2000

2000 2.2 1 in 50,000,000 (1)

3000 1.8 1 in 130,000,000,000 (2)

Note: Assumes 41.7 – 58.3 percent split in population and margin of error based on 95% confidence interval.

(1) More likely to flip a fair coin 25 times and get all heads. (2) More likely to be dealt back-to-back royal flushes in poker.

Page 6: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

The Penn, Schoen, and Berland Exit Poll

• The Venezuelan opposition calls election fraudulent and cites an exit poll conducted by Penn, Schoen & Berland Associates, Inc.– Sample: 20,382 voters– margin of error: <1%– Results: 59% favor recall, 41%

against

Page 7: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006
Page 8: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

The probability of the Penn, Schoen, and Berland exit poll getting its result from sampling error is far less than:1 in 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

Page 9: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Penn, Schoen, and Berland’s Response:

• The firm has maintained that their exit poll was correct and that the actual election results were fraudulent

Page 10: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Use of the False Exit Poll

• Sumate “deliberately distributed this erroneous [Penn, Schoen, and Berland] exit poll data in order to build up, not only the expectation of victory, but also to influence the people still standing in line”

-- Jimmy Carter (National Catholic Reporter, 9/03/04)

Page 11: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Penn, Schoen and Berland Still Polling in Venezuela

Recent P, S & B poll shows Chavez ahead 50-37, Financial Times reports.

“However, the pollsters concluded that Mr. Chavez’s real support level was likely to be much lower because an important number of potential voters are fearful of criticising him.” – Financial Times, 9/29/06

Note: the rest of the international media ignored this recent poll.

Page 12: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

(1) Datanalisis

“He [President Chavez] has to be killed,” he said, using his finger to stab the table in his office far above this capital's filthy streets. “He has to be killed.”

– Jose Antonio Gil Yepes, President of Datanalisis

Los Angeles Times, “Opposition Wishing for Ultimate End to Chavez”, July 7, 2002

Polling Firms Most Often Cited by the Media, Not Described as Partisan

Page 13: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

(2) AKSA (Alfredo Keller SA)

After the coup and in the midst of the oil strike to topple the Venezuelan government (December 2002), describing the conflict as “a fight to the death for power between two counter-posed ideological forces: an authoritarian socialism with a spirit of revenge against a democracy that is open to the market.”

-- Alfredo Keller, President of AKSA

letter to Petroleum World (12/17/02)

Polling Firms Most Often Cited by the Media, Not Described as Partisan

Page 14: Polling and the Ballot In Venezuela Mark Weisbrot November 10, 2006

Conclusion

• Polling in Venezuela has seen serious abuses, including possible falsification of results

• Media has not always exercised due diligence in scrutinizing and reporting on polls

• Good to look at pollsters’ past performance and methodology