Claim vs. Assertion

Although these verbs are synonymous, they have different underlying bases. This lesson will clarify their different.

What is the difference between 'claim' and 'assertion'?

Both 'claim' and 'assertion*' refer to statements about the truth of something that is not proven. However, 'assertion' is mostly based on personal opinions, while 'claim' can be supported by facts. This lesson will further clarify the difference between these two terms.

Fact vs. Opinion

'Claim' refers to a statement or proposition that is put forward as true or factual. It often implies the need for evidence, reasoning, or justification to support its validity or truthfulness. A 'claim' may be backed by facts, data, research, logical arguments, or other forms of evidence. 'Assertion' also refers to a statement or proposition, but it typically emphasizes the act of declaring or stating something confidently or forcefully. An 'assertion' can be based on personal beliefs, opinions, or subjective viewpoints, and it may rely more on conviction or personal authority than on extensive evidence. Here are some examples:

He made a claim that he witnessed the incident, providing a detailed account of what happened.

The scientist made a claim that their experimental results support the theory of relativity.

She made a forceful assertion that the team's success was due to her leadership skills.

The politician made a bold assertion that the new legislation would solve all the country's economic problems.

An 'assertion' is not supported by evidence or facts and is only a personal belief. Thus 'assertion' and 'claim' cannot be used interchangeably.

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