---
title: "Methodology"
description: "About the Pew Research Center’s Spring 2015 Global Attitudes Survey Results for the survey are based on telephone interviews conducted under the direction of Princeton Survey Research Associates International. The results are based on national samples, unless otherwise noted. More details about our international survey methodology and country-specific sample designs are available here. Detailed information […]"
date: "2015-09-09"
authors:
  - name: "Richard Wike"
url: "https://www.pewresearch.org/global/2015/09/09/methodology-12/"
categories:
  - "Bilateral Relations"
  - "China Global Image"
  - "Cyberattacks"
  - "Defense & National Security"
  - "Economic Policy"
  - "Global Economy & Trade"
  - "Global Image of Countries"
  - "Global Tech & Cybersecurity"
  - "Global Trade"
  - "Human Rights"
  - "Online Privacy & Security"
  - "Political Issues"
  - "Technology Policy Issues"
---

# Methodology

About the Pew Research Center’s Spring 2015 Global Attitudes Survey

Results for the survey are based on telephone interviews conducted under the direction of Princeton Survey Research Associates International. The results are based on national samples, unless otherwise noted. More details about our international survey methodology and country-specific sample designs are [available here](https://www.pewresearch.org/methodology/international-survey-research/international-methodology/global-attitudes-survey/all-country/2017).

[Detailed information on survey methods for this report](https://www.pewresearch.org/methodology/international-survey-research/international-methodology/global-attitudes-survey/united-states/2015)

[General information on international survey research](https://www.pewresearch.org/methodology/international-survey-research/)