---
url: "https://questionstar.com/principles-of-survey-research/chapter-2/slide-043.html"
title: "Constant Sum Scaling: Pros-and-Cons"
type: "lehrbuch-slide"
chapter: 2
chapterTitle: "Survey: Measurement and Scaling"
slide: 43
---

# Constant Sum Scaling: Pros-and-Cons

*Assessment*

+

### Pros

- Can measure small differences between objects without taking up too much time
- Metrically scaled → flexible choice of analysis methods

−

### Cons

- Results are limited to the list of objects rated — no statements about objects outside the list
- Relatively high cognitive load on respondents, especially with long lists - Prone to arithmetic errors (e.g. distribution of 108 or 94 points)

---

*Slide 43 of 274 · Chapter 2: Survey: Measurement and Scaling · Principles of Survey Research · Dr. Paul Marx*