---
url: "https://questionstar.com/principles-of-survey-research/chapter-4/slide-120.html"
title: "Sampling"
type: "lehrbuch-slide"
chapter: 4
chapterTitle: "Sampling"
slide: 120
---

# Sampling

*But not everyone selected actually answers: those who really take part are the respondents.*

![Population with sample and respondents](/principles-of-survey-research/media/pop_sample.png)

![](/principles-of-survey-research/media/circle_blue.png)

Population

The group of people we want to understand — often segmented by demographic/psychographic characteristics.

Sample

a representative subset of the population

Respondents

the people who answer

But not everyone selected actually answers: those who really take part are the **respondents** .

The respondents are a **subset of the sample** — and only they ultimately provide the data. If this group is skewed, the result is skewed.

---

*Slide 120 of 274 · Chapter 4: Sampling · Principles of Survey Research · Dr. Paul Marx*