1 / 16

What are the variables in this investigation?

Scenario: a researcher is investigating the theory that attitude to gun control is related to gender. What are the variables in this investigation?. Did you say:. Attitude. and. Gender. What kind of variables are these ?. CATEGORICAL VARIABLES !!!.

isolde
Télécharger la présentation

What are the variables in this investigation?

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. Scenario:a researcher is investigating the theory that attitude to gun control is related to gender

  2. What are the variables in this investigation?

  3. Did you say: Attitude and Gender

  4. What kind of variables are these ?

  5. CATEGORICAL VARIABLES !!!

  6. RELATIONSHIP BETWEEN TWO CATEGORICAL VARIABLES When we are analysing the relationship between two categorical variables, we use either a two way percentaged table or a segmented bar chart.

  7. In our scenario, what is the INDEPENDENT variable and what is the DEPENDENT variable?

  8. Our researcher is trying to ascertain whether attitude to gun control depends on gender, so INDEPENDENT VARIABLE = GENDER DEPENDENT VARIABLE = ATTITUDE TO GUN CONTROL

  9. Our researcher interviewed 68 males and 52 females. He found that 42 males and 40 females were in favour of gun control. We set up our two way table with the INDEPENDENT VARIABLE in columns!

  10. NOTE: Independent variable is in the columns

  11. As the table currently stands, it does not yet reflect fairly the relationship between gender and attitude to gun control. WHY NOT?

  12. Yes, that’s right! The researcher has interviewed more males and females, so to reduce everything to the same level playing field, we must calculate PERCENTAGES.

  13. PERCENTAGED TWO WAY TABLE

  14. PERCENTAGED TWO WAY TABLE

  15. CONCLUSION We now write a conclusion, quoting figures from our percentaged table: The evidence from our percentaged table supports the conclusion that attitude to gun control is related to gender. We find that 76.9% of females in the sample supported gun control, compared to only 61.8% of the males in the sample.

More Related