Expert vs. Peer Testimony

1. Introduction

A testimony is an assertion made by someone who has knowledge or experience in a particular matter.

Testimony is used in various contexts for a wide range of purposes.

EXAMPLE

In the law, testimony is a form of evidence that is obtained from a witness who makes a solemn statement or declaration of fact.

There are two major types of testimony:

• Peer testimony
• Expert testimony

term to know

Testimony

An assertion made by someone who has knowledge or experience in a particular matter

2. Expert Testimony

Expert testimony, as the name suggests, is testimony given by a person who is considered an expert by virtue of education, training, certification, skills, and/or experience in a particular matter.

Because experts have knowledge beyond that of a typical person, expert testimony carries considerable weight. Though an expert is an authority in a particular subject, his or her testimony can certainly be called into question by other facts, evidence, or experts.

term to know

Expert Testimony

Testimony given by a person who is considered an expert by virtue of education, training, certification, skills, and/or experience in a particular matter.

3. Peer Testimony

Peer testimony, unlike expert testimony, is given by a person who does not have expertise in the subject in question. As a result, those who provide peer testimony are sometimes referred to as "anti-authorities."

A person who provides peer testimony might not have expertise in a particular area, but he or she likely has personal experience with the issue at hand.

Though peer testimony can easily be challenged, it can still be a powerful tool in persuading an audience, particularly when delivered or provided by a well-liked celebrity.

term to know

Peer Testimony

Testimony given by a person who does not have expertise in a particular matter.

4. Questions to Consider Before Using Testimony

Before incorporating testimony, ask yourself:

• Are you quoting the testimony accurately?
• Is the testimony biased? In what way?
• Is the person providing the testimony competent and/or well respected?
• Is the testimony current?
• How will your audience respond to the testimony?