Principles of Biomedical Technology (Principles of Biomedical Science)
Observation versus inference table
Observation versus inference table
Unit 1: Unit 1.1 Investigating the ScenePBS 1.1Biotechnology Research and Experiments
Distinguish Observation From Inference
Separate what you directly notice from conclusions you draw from those clues.
Builds on (2 levels back)inferred · high confidence
- Observation vs. inference: Forensic work starts by separating what was seen from what is concluded.
- Evidence identity: Labels, photos, and logs keep evidence tied to the right source.
Prerequisites are inferred: pending teacher review.
Re-learn the skill with worked practice and clear examples.
Separate what you directly notice from conclusions you draw from those clues.
Step 1: Learn the key
An observation is directly [blank]. An inference is a [blank] based on observations.
| Statement | Type | Why |
|---|---|---|
| Red-brown stain on tile | Observation | directly seen |
| The person fell here | Inference | conclusion from clues |
| Window is broken | Observation | directly seen |
Step 2: Use the model
Read the figure, table, control, range, or protocol before choosing an answer.
Step 3: Name the limit
Say what the evidence can support and what it cannot prove yet.
Practice
Use the observation/inference table. Which statement is an inference?
Reviewed| Statement | Type | Why |
|---|---|---|
| Red-brown stain on tile | Observation | directly seen |
| The person fell here | Inference | conclusion from clues |
| Window is broken | Observation | directly seen |
- A.Window is broken
- B.Shoeprint is 28 cm
- C.The person entered through the window
- D.Red fiber on sleeve
Show the worked solution ▾
Answer: C. The person entered through the window
- Step 1: Find the conclusion: Entering through the window explains what may have happened.
- Step 2: Separate observations: Broken window, shoeprint size, and fiber are directly recorded clues.
Why it's right: The entry route is inferred from observations.
Why the others miss:
- A: This is directly seen.
- B: This is measured.
- D: This is directly seen.
Aligned to Biotechnology Research and Experiments · reading level ~grade 9
Where you'd see this
- In Unit 1.1 Investigating the Scene, this skill turns class evidence into a result another person can check.
Video library
Watch: Distinguish Observation From Inference
Observation vs. Inference
Duell Chemistry
Guided notes
Fill these in as you work through the lesson.
Big idea: Separate what you directly notice from conclusions you draw from those clues.
Key terms: write the meaning
- Observation (what you directly see, measure, or record):
- Inference (conclusion based on observations):
- Evidence (data or clue that supports a claim):
- Bias (expectation that can distort a conclusion):
The rule
An observation is directly . An inference is a based on observations.
Check yourself
- Which statement can be checked by another person?
- Which statement explains what may have happened?
- What evidence would support the inference?
Work one example
Sort: broken glass on floor; the window was forced open; shoeprint is 28 cm.