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KUDER-RICHARDSON Reliability Test I Measure of Internal Consistency using KR20 Example 1
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- Опубліковано 17 сер 2024
- This is an example of measure of internal consistency of a teacher made test using Kuder-Richardson Formula 20 on the assumption that the test items have varying difficulty.
This video lecture is not edited, because I don't know how to edit, and there are some mistakes in my discussion so please help me improve by submitting comments.
Disclaimer: I am not an expert in Statistics and in MS Excel but I would love to learn more if you could help me improve.
#KR20 #KuderRichardson #ReliabilityTest
Our research teacher only gave us 5 hours to submit our Chapter 3. And this is the first time that we're introduced to different statistical methods... She didn't discuss anything about research. Didnt even provide the basics. So thank you for this.
I am doing this reliability test for a class requirement. Your video tutorial is very helpful. The presentation and explanation are all so good. Daghang salamat!
Last from 4 days i searching procedure of reliability finding . finally i got exact video.if you explain data interpretation it's make more easier
🎯 Key Takeaways for quick navigation:
02:25 🔢 Kuder-Richardson Formula 20 (KR20) is used to measure the reliability of a test with binary variables, such as multiple choice or true/false questions.
03:32 📊 KR20 results range from 0 to 1, with values closer to 1 indicating higher reliability and values closer to 0 indicating lower reliability.
11:35 📈 To calculate KR20, you need the number of test items (k), the summation of pq, and the variance (s squared).
15:49 🧮 KR20 can be calculated using a formula in Excel or manually with a calculator, following specific steps.
19:33 📚 A high KR20 value (close to 1) indicates a very high relationship and suggests that the test has high reliability.
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Thank you so much for this video. I learned a lot and was able to do my task regarding reliability test. God bless you!❤
You're welcome!
Sir, thank you very much for this video. Your method of presentation makes it easy for beginners like me to understand the concept. The step-by-step process using a sample set of data makes your explanation highly comprehensible. My deepest gratitude, Sir for simplifying this complex topic. Your voice is also soothing and gentle, easy on the ears.
You are very much welcome!
Sir I don't understand on how you get variance.........??????
@@barakalumato6475 Are you looking or manual computation?
Hi, do you have a video about Aiken's V validity Test?
Thank you.❤️
nice explanation.. much better than my teacher. lmao..
Hello sir. I am very new at this and struggling to learn. But I just want to ask things regarding the pq. When 0.67 is multiplied by 0.33 manually, it appears that the product is 0.2211. similarly, when 0.48 is multiplied by 0.58 manually, the product is 0.2436. My question sir is, should I take up to the hundredths place without rounding it off? 0.2211 became 0.222, while 0.2436 turned just to 0.243 .
I'm a little bit confuse sir in the part that 0.2211 must only be 0.221, and 0.2436 must be 0.244 since the next number is 6 which supposedly a round up.. I hope you can notice my comment as I badly need help. Sorry for grammatical errors as I am don't speak English good.
Hi, thanks for asking. The rounding off and all calculations are done in MS Excel, not on your calculator. What you see on each cell are decimal numbers that were only rounded off to 2 or 3 decimal points. So it is possible that say, for example, 0.75 is actually 0.754567897686576.
Hi Sir, firstly thank you so much for this video! In second place, you have some bibliographic reference about the interpretation of the results?
Thank you for your attencion.
How to get the variance manually? What's the formula? hoping for you fast response huhu badly needed.
Hi sir! I just wanted to ask my questionnaire is based on yes or no questions with some questions are calculated for correct answers and some questions are just for response based......so do i apply kr-20 for all my questions.....and then i have 2 different sections which assess 2 variables......so each section i need to do kr-20 separately is it
Hi, thanks for asking. Yes it would be good if you test the relationship of each section using KR-20.
Can this kind of formula be applied to our study, which is on the impact of extracurricular activities on students?
Thank you.for sharing this video
Hi. Good day Po! I just wanna ask on a part of PQ result on how did you get it? Because the video was somehow or a little bit blurred. Please. I really need to know it.
Hi, here is a simpler video of Kuder Richardson 20 in Tagalog: ua-cam.com/video/XoN0RmKWx0c/v-deo.html
Please can you tell me how I can transfer true and faule to 1and 0 in excel
Hi, you may want to try this. On you excel file, press "CTRL F" and click replace tab. Then you can replace all cell with "true" value to 1. Repeat the same procedure with "false" value to 0.
Hello, I would like to ask what statistics will I use to check the reliability of my pre and post test ? My pre and post are parallel form
Hi, here is a link for equivalent form or parallel form reliability test. ua-cam.com/video/C-gXzawarKw/v-deo.html
How you calculated variance?
Thank you for the video. I would like to know can we use both cronbach alpha and KR-20 in the same study? since i have nominal, dichotomous and likert scale questions in my questionnaire. Should i only use KR-20 for the three types of items? or use KR-20 for nominal and dichotomous items and cronbach alpha for the likert scale items? Waiting for your reply. thanks
Hi, thanks for your question. Basically, KR20 and Cronbach's alpha is the same. Cronbach's alpha is the extension of KR20. KR20 works only for dichotomous measures while the other works with polytomous measures. You can apply KR20 for your nominal dichotomous measures (with binary coding say for example 1-yes and 0-no) and Cronbach's alpha for the likert scale questions. But even if you apply/use Cronbach's alpha on dichotomous measures, you will notice it yields same result because the formula is just the same.
@@glentox1563
Plz sir,l need to text u...can l ve ur phone number
Thank you so much for this video, it is really a great help to us looking for an answer or example on how to solve like this. God bless.
Thanks very much
You are welcome!
how the variance is got.i dnt knw this sub at all
I think you should use the VAR.S formula instead of VAR.P since a test is a sample.
Please help me on calculating variance🙏
Sir you have KR21 discussion?
Sir how to calculate reliability for pre and post test
Hi. you might want to check this out. Test-Retest reliability ua-cam.com/video/Z3Yp1NgCOF4/v-deo.html
Hi. May I know is it possible to apply if the variables are categorical?
Hi, Kappa coefficients are measures of correlation between categorical variables often used as reliability or validity coefficients.
How to solve the variance manually?
Hi, I have created a video about manual computation for variance. Here is the link: ua-cam.com/video/IRLywOyWzB8/v-deo.html
Ask lng po, kung imamano po ang pag compute papano po icompute ang sa variance?
Good evening, Sir! I just want to ask about KR-21. How can we interpret the result? Can we base it using the same interpretation as the KR-20 has?
Yes!
maypa ka sir ga discuss .. amoa teacher wa gyud.. dretso ra hatag.. kulang pa gyud given.. naloko na..
hello! Is it still acceptable if you get a 1.01 result in KR20??
Hi, thanks for asking. The highest possible value for KR20 is 1. There must be an error in your computation if you have a result of 1.01.
@@glentox1563 Thank you!!
thank u
You're welcome, here is a new TAGALOG version with a better interpretation of result. ua-cam.com/video/XoN0RmKWx0c/v-deo.html
How to calculate the variance??
Hi, thanks for asking. Variance can be calculated manually or can be directly computed by a spreadsheet. For manual computation, please check this video: ua-cam.com/video/IRLywOyWzB8/v-deo.html
how did you get the variance?
Hi, the variance was computed using ms excel formula. If you are looking for manual computation, you can try this ua-cam.com/video/IRLywOyWzB8/v-deo.html
thank you sirr
Welcome,
nakakaiyak so much
Ask lng po, kung imamano po ang pag compute papano po icompute ang sa variance?