---
title: How to Use Data to Understand and Resolve Differences in Opinion, Part 1
description: How to Use Data to Understand and Resolve Differences in Opinion, Part 1
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# How to Use Data to Understand and Resolve Differences in Opinion, Part 1
Minitab Blog Editor | 1/16/2017
Topics: [Manufacturing](https://blog.minitab.com/en/blog/tag/manufacturing), [Services](https://blog.minitab.com/en/blog/tag/services), [Data Analysis](https://blog.minitab.com/en/blog/tag/data-analysis), [Statistics](https://blog.minitab.com/en/blog/tag/statistics), [Quality Improvement](https://blog.minitab.com/en/blog/tag/quality-improvement), [Six Sigma](https://blog.minitab.com/en/blog/tag/six-sigma), [Project Tools](https://blog.minitab.com/en/blog/tag/project-tools), [Lean Six Sigma](https://blog.minitab.com/en/blog/tag/lean-six-sigma)
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People frequently have different opinions. Usually that's fine—if everybody thought the same way, life would be pretty boring—but many business decisions are based on opinion. And when different people in an organization reach different conclusions about the same business situation, problems follow.
Inconsistency and poor quality result when people being asked to make yes / no, pass / fail, and similar decisions don't share the same opinions, or base their decisions on divergent standards. Consider the following examples.
**Manufacturing:** Is this part acceptable?
**Billing and Purchasing:** Are we paying or charging an appropriate amount for this project?
**Lending:** Does this person qualify for a new credit line?
**Supervising:** Is this employee's performance satisfactory or unsatisfactory?
**Teaching:** Are essays being graded consistently by teaching assistants?
It's easy to see how differences in judgment can have serious impacts. I wrote about a situation encountered by the recreational equipment manufacturer [Burley](http://www.minitab.com/burley). Pass/fail decisions of inspectors at a manufacturing facility in China began to conflict with those of inspectors at Burley's U.S. headquarters. To make sure no products reached the market unless the company's strict quality standards were met, Burley acted quickly to ensure that inspectors at both facilities were making consistent decisions about quality evaluations.
## Sometimes We *Can't* Just Agree to Disagree
The challenge is that people can have honest differences of opinion about, well, nearly everything—including different aspects of quality. So how do you get people to make business decisions based on a common viewpoint, or standard?
Fortunately, there's a statistical tool that can help businesses and other organizations figure out how, where, and why people evaluate the same thing in different ways. From there, problematic inconsistencies can be minimized. Also, inspectors and others who need to make tough judgment calls can be confident they are basing their decisions on a clearly defined, agreed-upon set of standards.
That statistical tool is called "Attribute Agreement Analysis," and using it is easier than you might think—especially with [data analysis software such as Minitab](http://www.minitab.com/products/minitab).
## What Does "Attribute Agreement Analysis" Mean?
Statistical terms can be confusing, but "attribute agreement analysis" is exactly what it sounds like: a tool that helps you gather and *analyze* data about how much *agreement* individuals have on a given *attribute*.
So, what is an attribute? Basically, any characteristic that entails a [judgment call](https://blog.minitab.com/blog/understanding-statistics/got-good-judgment-prove-it-with-attribute-agreement-analysis?hsLang=en), or requires us to classify items as *this* or *that*. We can't measure an attribute with an objective scale like a ruler or thermometer. The following statements concern such attributes:
- This soup is **[spicy](http://www.minitab.com/products/minitab/quick-start/soup/)**.
- The bill for that repair is **low**.
- That dress is **red**.
- The carpet is **rough**.
- That part is **acceptable**.
- This candidate is **unqualified**.
Attribute agreement analysis uses data to understand how different people assess a particular item's attribute, how consistently the same person assesses the same item on multiple occasions, and compares both to the "right" assessment.
This method can be applied to any situation where people need to appraise or rate things. In a typical quality improvement scenario, you might take a number of manufactured parts and ask multiple inspectors to assess each part more than once. The parts being inspected should include a roughly equal mix of good and bad items, which have been identified by an expert such as a senior inspector or supervisor.
In my next post, we'll look at an example from the financial industry to see how a loan department used this statistical method to make sure that applications for loans were accepted or rejected appropriately and consistently.
## You Might Also Like
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[Data Preparation](https://blog.minitab.com/en/blog/tag/data-preparation) | 5 Minute Read
[Why Operational Friction Is Quietly Driving Quality Costs](https://blog.minitab.com/en/blog/why-operational-friction-is-driving-quality-costs?hsLang=en)
[Quality Analytics](https://blog.minitab.com/en/blog/tag/quality-analytics) | 6 Minute Read
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