---
title: "Appendix A: Summary of mode differences by question"
description: "[![](https://www.pewresearch.org/wp-content/uploads/2017/03/PM.03.30.2017_mode.effects-appB-01.png)](https://www.pewresearch.org/2017/03/31/appendix-a-summary-of-mode-differences-by-question/pm-03-30-2017_mode-effects-appb-01/)"
date: "2017-03-31"
authors:
  - name: "Travis Mitchell"
url: "https://www.pewresearch.org/methods/2017/03/31/appendix-a-summary-of-mode-differences-by-question/"
categories:
  - "Donald Trump"
  - "Nonprobability Surveys"
  - "Survey Methods"
  - "Telephone Surveys"
---

# Appendix A: Summary of mode differences by question

[![](https://www.pewresearch.org/wp-content/uploads/2017/03/PM.03.30.2017_mode.effects-appB-01.png)](https://www.pewresearch.org/2017/03/31/appendix-a-summary-of-mode-differences-by-question/pm-03-30-2017_mode-effects-appb-01/)

[![](https://www.pewresearch.org/wp-content/uploads/2017/03/PM.03.30.2017_mode.effects-appB-00.png)](https://www.pewresearch.org/2017/03/31/appendix-a-summary-of-mode-differences-by-question/pm-03-30-2017_mode-effects-appb-00/)

---

**Next:** [Appendix B: Mode effects as a source of error in political surveys](https://www.pewresearch.org/methods/2017/03/31/appendix-b-mode-effects-as-a-source-of-error-in-political-surveys.md)