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Observations. Biology 1. Types of observations/research: . Qualitative : when the object is described in terms of quality. (It was green. It smelled like candy.)

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Observations

Observations

Biology 1


Types of observations research
Types of observations/research:

  • Qualitative: when the object is described in terms of quality. (It was green. It smelled like candy.)

  • Quantitative: when the object is described or measured in concrete numerical terms. (there are 30 students in my class. I ate 1 pound of potatoes.)



Determine which are qualitative and which are quantitative1
Determine which are qualitative and which are quantitative:

  • The cup had a mass of 454 grams.

    Quantitative



Determine which are qualitative and which are quantitative3
Determine which are qualitative and which are quantitative:

  • The temperature outside is 25° C.

    Quantitative





Determine which are qualitative and which are quantitative7
Determine which are qualitative and which are quantitative:

  • The tree is 30 feet tall.

    Quantitative



Determine which are qualitative and which are quantitative9
Determine which are qualitative and which are quantitative:

  • The building is taller than the tree.

    Qualitative


When does an observation become an inference
When does an observation become an inference?

  • Observation: Using one or more of your senses to gather information and record facts.

  • Example: There is one projector in the room.


When does on observation become an inference
When does on observation become an inference?

  • Inference: logical interpretation based upon prior knowledge and experience.

  • Example: Since students are wearing coats, it must be cold outside.


In a lab setting
In a Lab Setting

  • Record your data as observations and facts, NOT inferences.

  • Inferences can be used in your analysis and conclusion portion of your lab report.


Now lets practice
Now, lets practice!

  • Observation/inference practice


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