Scientific Inference — Definition & Examples

Illustrated · 1 min

This is a comic explaining what an inference is. The text reads: An inference is an educated guess or conclusion based on previous observations and prior knowledge. For example: Deena works at Expii. She wears lots of clothes with corgis, owns two corgis, and many of the problems she writes have corgis as examples. We can infer that she likes corgis. Another example of inference: You leave your brother in a room with a piece of cake and tell him not to eat any. You leave the room for a second. When you come back the cake is missing and there are crumbs on your brother's face. Although he denies responsibility, you infer that he ate your cake.

Image source: By Sylvia Freeman

Interactive · 2 questions

What's an Inference?

An inference is a logical conclusion based on previous experiences, observations, and knowledge. It is an educated guess. Inferences can lead us to a hypothesis.

A corgi makes the observation that its owner is wearing shoes and is carrying a leash.

Image source: By Salina Tran CC0, via pexels.com

What inference can be made from the picture above?

Choose one answer

Read · 1 min

Making Inferences

Similar to a hypothesis, an inference is an informed guess about science or scientific relationships. Inferences are based on real, observed evidence but are still just guesses about the true relationship that exists.

Here's a simple example. If you see your friend wearing a team's baseball jersey, an inference would be that they are a fan of that team.

How Is This Related to Observations?

When you infer something, you make a guess based on what you notice. Let's go back to that example of your friend wearing a sports jersey. How did we decide that your friend is a fan of that baseball team? Well, we wouldn't have been able to come to that conclusion unless:

  • We noticed them wearing it.
  • We saw that it was a jersey for a sports team.

Based on what we observed, we were able to make a decent guess that they are a fan of that team.

Inference Vs. Hypothesis

A hypothesis is an educated guess about what will happen in a situation. It is based on what you see, hear, feel, smell, or taste. It does sound a lot like an inference, but there is a slight difference.

An inference is a conclusion based on what you observe.

A hypothesis is a prediction about something that hasn't happened yet.

Video

(Video) Observations and Inferences

by Teacher's Pet

How are observations and inferences related? This video explains how inferences are made and changed based on observations.

Summary

Sometimes you might think you're making an observation when you're really making an inference. To infer means to use past knowledge or opinions to come up with a conclusion. For example, an observation might be that a tire is flat or has rust on it. An inference is that the tire is very old or it cannot be fixed. When you infer something, make sure your observations can support it. If they can't, don't be afraid to come up with a new inference.

Type a concept, like “slope” or “photosynthesis”.

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