---
url: "https://questionstar.com/principles-of-survey-research/chapter-2/slide-048.html"
title: "Perception Analyzer"
type: "lehrbuch-slide"
chapter: 2
chapterTitle: "Survey: Measurement and Scaling"
slide: 48
---

# Perception Analyzer

*During the presentation of a stimulus — e.g. a TV commercial — each participant turns a dial. This creates a continuous rating in real time, second by…*

During the presentation of a stimulus — e.g. a **TV commercial** — each participant turns a dial. This creates a **continuous rating in real time** , second by second — aggregated across all participants and broken down by segments.

![Dial handset](/principles-of-survey-research/media/pa_dial.png)

Dial handset

![Perception Analyzer results: approval curves over the spot duration](/principles-of-survey-research/media/pa_chart.png)

Aggregated real-time curves over the spot duration — broken down by segments (0 = "Not Appealing" … 100 = "Very Appealing").

![Participants rate live with dial handsets](/principles-of-survey-research/media/pa_audience.png)

Participants rate live during the presentation.

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*Slide 48 of 274 · Chapter 2: Survey: Measurement and Scaling · Principles of Survey Research · Dr. Paul Marx*