I am doing an undergrad thesis right now, and my study is about knowledge, attitude, and perception toward HIV/AIDS. The problem is most of the studies I found measure knowledge using 3-point scale (e.g., YES, NO, and I DON'T KNOW) but my school requires a 5-point scale and I can't find any research instrument. Is it possible to find a correlation between knowledge and attitude even though they have different scaling method. Also, if you know a study that measures knowledge on HIV using 5 point likert scale please share the study or the link. That would be a big help for me. Thank you.
When you work with a scale, you use the total score and not the scores on individual responses to each item. So, if a scale has 10 items that are scored 1 or 0, that scale score runs from 0 to 10, and that total score is what you would be using in correlations etc.
Are you sure you have to have 5 points? It's your thesis and you design the methodology :)
Andrew Paul McKenzie Pegman Thank you for commenting. My statisticians said that using 3 point is less impactful that's why I am looking for a 5-point likert scale. But following my RRL, most of the studies used 3 point scaling to measure knowledge, attitude, and perception on HIV. Should I follow my statistician or the methodologies in the RRL?
It’s good to compare like with like data. If they accept your justification, then use 3 😊
Scales that measures attitudes and perception are often different from asking about knowledge. The former could easily use 5-point Likert-scaling, but knowledge is frequently captured through Yes or No statements.
5 scale you can used in following way :
1. Strongly Agree
2. Agreee
3. Not Decided
4. Disagree
5. Strongly Disagree.
According to give marks as per the question positive or negative type. 1,2,3,4 and 5
For Example
Do you have any idea about HIV infection?
Strongly Agree. Get 5 marks
Agree get 4 marks
Not decided 3 marks
Disagree 2 marks
Strongly Disagree 1 marks
So on
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