July 10, 2015 | By Dina Smeltz

Why Were the Greek Polls so off the Mark on the Referendum?

While the final round of polling conducted on the referendum in Greece showed that a no vote would prevail, the actual vote was far more decisive, with 61% saying no and 39% saying yes. Why did the polls get it wrong? For one thing, it is not clear whether the Greek polls took into account voting turnout—and whether only very likely voters were isolated for their projected vote. In addition, Mark Blumenthal of the Huffington Post  and Nate Silver on FiveThirtyEight help explain the discrepancy in two recent postings. These include some items particular to polling about referenda (for example, differences between wording of survey questions versus referendum ballot). But they also include other issues that haunt most polling organizations today, including accurate coverage and volatile response rates. 
  • Different wording on the survey questionnaire than on the actual ballot language, which was quite complicated (see translation by New York Times in the Huffington Post article)
  • Greater likelihood to vote yes in surveys about referenda 
  • Volatility in polling response rates so close to vote 
  •  Possibility that cell phone coverage was limited, which could understate young people’s votes
  • “Herding” of results
See the full articles linked above for more details. 
 

About

The Chicago Council on Global Affairs highlights critical shifts in American public thinking on US foreign policy through public opinion surveys and research conducted under the Lester Crown Center on US Foreign Policy. 

The annual Chicago Council Survey, first conducted in 1974, is a valuable resource for policymakers, academics, media, and the general public. The Council also surveys American leaders in government, business, academia, think tanks, and religious organizations biennially to compare trends in their thinking with overall trends. And collaborating with partner organizations, the survey team periodically conducts parallel surveys of public opinion in other regions of the world to compare with US public opinion. 

The Running Numbers blog features regular commentary and analysis from the Council’s public opinion and US foreign policy research team, including a series of flash polls of a select group of foreign policy experts to assess their opinions on critical foreign policy topics driving the news.

Archive

| By James Drimalla

Millennials' Divergent Views on Global Affairs

Attitudes and beliefs frequently change from generation to generation and a new joint study from the Chicago Council on Global Affairs, CATO Institute, and Charles Koch Institute explores generational differences between the American public on foreign policy issues.



| By Karl Friedhoff

Consequences of Success on the Korean Peninsula

The April 27 inter-Korean summit was largely successful in the eyes of the South Korean public. It has created momentary trust in North Korea, and if that lasts, may lead the public to ask serious questions about the US-South Korea alliance.


| By Karl Friedhoff

The Reunification Spectrum for South Koreans

When it comes to reunification, South Koreans take pause. A quick reunification likely has serious cosequences for the South, and is not much favored by the South Korean public. Instead, the status quo is generally favored, and those views are often conditioned by the actions of North Korea.


| By Karl Friedhoff

Diplomacy in the Air on Korean Peninsula

In the coming months, there will be a flurry of diplomatic activity on the Korean Peninsula. This is good news for many South Koreans, even though the South Korea public still has doubts about North Korea's true intentions.


| By Dzena Berbic, Craig Kafura

America and the Millennial Agenda

Millennials have become the most populous living generation in the United States, overtaking Baby Boomers and Gen Xers in becoming the largest voting body. So what do Millennials want, and what are some of their noticeable generational differences? A recent Chicago Council on Global Affairs event featuring Congresswoman Robin Kelly (D-IL2), former Congressman Bob Dold (R-IL10), POLITICO’s Natasha Korecki, and Council pollster Craig Kafura, discussed Millennial attitudes and the Millennial political agenda.



| By Craig Kafura

O Christmas Tree

Christmas is a widely-celebrated holiday in the United States. Though the Christmas tree remains a popular symbol, Americans are changing the kind of tree they use in their homes—and a small but rising number are opting to celebrate without a tree altogether. 




| By Dina Smeltz

Arrested Development

In President Trump's first major speech before the United Nations General Assembly last week, he described the nuclear agreement with Iran as an "embarrassment" to the United States. But according to the 2017 Chicago Council Survey, the public disagrees. 


Americans Not Sure Trump's Policies Will Make America Safer

The 2017 Chicago Council Survey finds that majorities of Americans continue to think that international terrorism is one of the most critical threats to the United States. But the overall public is not convinced that the Trump administration's policies will make the United States safer from terrorism.