1 / 18

The Scientific Method

The Scientific Method. What is the very first step to the scientific method?. Observation!. Problem. Deciding what it is that you will be studying. Hypothesis. Not a W.A.G (wild @$$ guess) Should be an educated “guess” backed by research that is testable!. Experimental Group.

york
Télécharger la présentation

The Scientific Method

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Scientific Method

  2. What is the very first step to the scientific method? • Observation!

  3. Problem • Deciding what it is that you will be studying.

  4. Hypothesis • Not a W.A.G (wild @$$ guess) • Should be an educated “guess” backed by research that is testable!

  5. Experimental Group • The group that you will be testing on using a specific variable.

  6. Control Group • Identical to the experimental group except that they lack the experimental variable.

  7. Independent variable • The variable being adjusted by the experimenter. • Should only have 1!

  8. Dependent variable • The thing that is being measured. • It is what responds to what the experimenter has adjusted.

  9. Data • All the qualitative and quantitative measurements collected.

  10. Theory • A hypothesis supported by many experiments. • Accepted as being correct but not proven.

  11. Accuracy • How close the results are to the actual answer. Accurate

  12. Precision • How close the results are to each other. Precise

  13. Correlation • A mutual relation between two or more things • Example : there is a correlation between alcohol and domestic violence…you can’t say alcohol causes domestic violence.

  14. Causation • A relationship in which one action or event is the direct consequence of another • Example: Streptococcus causes strep throat .

  15. Null Hypothesis • The null hypothesis is a hypothesis which the researcher tries to disprove, reject or nullify. • The 'null' often refers to the common view of something, while the alternative hypothesis is what the researcher really thinks is the cause of a phenomenon.

  16. Validity • Generally refers to the extent to which a concept, conclusion or measurement is well-founded and corresponds accurately to the real world.

  17. Why is it important to repeat experiments? • To validate the results!

  18. Labeling the dependent and independent variable… • X-axis: independent • Y-axis: dependent

More Related