---
title: "Methodology"
description: "About Pew Research Center’s International Science Survey 2019–2020 Results for the survey are based on telephone and face-to-face interviews conducted under the direction of Kantar Public UK, Kantar Public Korea, Langer Research Associates and Abt Associates. The results are based on national samples, unless otherwise noted. More details about our international survey methodology and country-specific […]"
date: "2020-09-29"
authors:
  - name: "Cary Funk"
    job_title: "Former Director, Science and Society Research"
    link: "https://www.pewresearch.org/staff/cary-funk/"
  - name: "Alec Tyson"
    job_title: "Former Associate Director"
    link: "https://www.pewresearch.org/staff/alec-tyson/"
  - name: "Brian Kennedy"
    job_title: "Senior Researcher"
    link: "https://www.pewresearch.org/staff/brian-kennedy/"
  - name: "Courtney Johnson"
    job_title: "Former Research Associate"
    link: "https://www.pewresearch.org/staff/courtney-johnson/"
url: "https://www.pewresearch.org/science/2020/09/29/science-global-publics-methodology/"
categories:
  - "Climate, Energy & Environment"
  - "Environment & Climate"
  - "Food Science"
  - "Science Funding & Policy"
  - "Trust in Science"
  - "Vaccines"
datasets:
  - name: "International Science Survey"
    url: "https://www.pewresearch.org/dataset/international-science-survey/"
---

# Methodology

About Pew Research Center’s International Science Survey 2019–2020

Results for the survey are based on telephone and face-to-face interviews conducted under the direction of Kantar Public UK, Kantar Public Korea, Langer Research Associates and Abt Associates. 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/all-survey/all-country/all-year).

For details on the classification of European political parties see [Appendix B](https://www.pewresearch.org/science/2020/09/29/appendix-b-classifying-political-parties-as-populist).

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**Next:** [Appendix A: Detailed charts and tables](https://www.pewresearch.org/science/2020/09/29/appendix-a-detailed-charts-and-tables.md)