A-Level Psychology (AQA): Choosing a Statistical Test

[@alexalcantara1686]

You are so much better than Psychboost man

[@ElohoNana]

1000%

[@faithfuljohn2001]

I couldn't learn with Psycho 😭😭😭 I wish I had him before in Th first year

[@jonathan-dj5rl]

@@faithfuljohn2001 for real

[@bentaylorr]

got a paper 2 mock tomorrow, and this has just helped me more than any revision or lesson ive ever done on stats test. Thank you!

[@smileyourebeautiful9613]

i hope it went well !

[@judelewisjourno]

good luck on your tuesday exam

[@Vivi_dream123]

This is excellent. I wish you every success with the channel!

[@smcartledge2723]

Thank you

[@AmyMorel-ox4er]

this is by far the best video that explains everything you need to know in a very straight forward approach to help you learn!

[@willnorman2349]

OMG thank you, ive always failed to understand inferential statistics and the tests, ive got my paper two tommorow and youve just relieved so much stress

[@julietteroach6540]

that table is so good, I'm so happy i found this account, was actually near tears when my psych teacher said to make sure I knew stats tests before paper 1, which im taking tomorrow... 🙇🙇🙇

[@julietteroach6540]

@@gabriellevannoordwyk7821 you too!! good luck 💪🏼💪🏼

[@Naomi.c773]

it didnt even come up in paper 1 but defo coming up in paper 2 and 3

[@mehzgirl5044]

You’re my favourite research methods teacher, thank you!

[@juanclaudio7732]

This was excellent knowledge to apply to understand choosing the correct statistical test. Thank you.

[@julietambali]

Amazing job. Thank you so much. You are a great teacher

[@smcartledge2723]

Thank you for your comment.

[@szdigi]

thankss, i couldnt understand it when my teacher taught it but this is a really good explanation

[@rosiefoster6407]

Thank you for this! This is very helpful and taught me better than my teacher did!

[@honeybee_147]

Thank you so much for this video!! so helpful :)

[@Talha54501]

For the final exam question, couldn’t one argue that it is a test of correlation since they may be testing the correlation between time (years over decades) and amount of people who smoke?

[@Amy-wp3hh]

this is such a helpful video!!!! I was so confused before- thank you!

[@anaymakan6989]

for psychology a level research methods, i always come back to this video. the simplest explanation around. thank you

[@SharonKellyNutriGirl]

So so helpful. Thank you very much indeed!

[@SohaibTahir13]

Thank you for the help.THIS REALLY HELPED!!!!!!!!!

[@rachelhead2044]

I am currently teaching this to Year 13s as a non-specialist, your videos have been incredibly helpful, thank you. Just one question: Why choose Spearman's over Pearson's if the data is interval? Also, I found an example looking at foot size and number of oranges peeled in 5 minutes. My class were asking why Spearman and not Pearson and I couldn't convince them successfully!!

[@smcartledge2723]

Hi, thanks for your feedback. Where did you find the question? Based on that information it sounds like it should have been Pearson's, as the amount of oranges peeled sounds like interval data. Is there anymore information to the question?

[@TattiWay]

Hi great video. What about ratio data? What statistical tests should be used for ratio?

[@smcartledge2723]

Thanks. We don't use radio data at A-level in psychology. Interval is all you need. The only real difference between them is that ratio data has a true zero, Eg. Weight. So don't worry about ratio, you don't need it for AQA psychology.

[@Michelle-pv7me]

I LOVE YOU

[@mathsfornineyearolds]

comments 34 on 3-9-2022. In 1996 I was handed a book of these test. It was pre degree. My response was: "Oh I see, I'm supposed to believe all this". I carried one out to get a certificate. Take a look at the reality.

[@Vivi_dream123]

Sorry- quick but crucial question. Why is "before" and "after" data classed as nominal? I would've thought it'd be ordinal

[@smcartledge2723]

Hi there. What is the context - before and after data could technically be any of them. Thanks

[@Vivi_dream123]

@@smcartledge2723 Thankyou so much for replying. Its the context of the example given in this video. I used screenshots and examples from the video in a tutoring session but was at a loss to explain why before-after isnt ordinal...

[@smcartledge2723]

Ah right. So before and after data can technically be all three of them, it always depends on what you’re actually measuring. So in my example I was looking at whether patients improved in terms of their symptoms before and after receiving treatment. But I wasn’t interested in how much they had improved, I was only interested in whether they had improved or not. Which means that they are in categories. They either have improved or they haven’t. However, if I was rating their improvement in some way, and then ordering them for example, then you would be right, it would be ordinal. Does that make sense?

[@Vivi_dream123]

@@smcartledge2723 Yes it does. Thankyou SO much

[@-georgiag-1677]

This video saved me I love you

[@oaatyy8613]

Thank you so much for this video, really good explanation!

[@smcartledge2723]

Glad it was helpful!

[@smileyourebeautiful9613]

thank you so much ! i’m so grateful

[@honeypeaches7736]

Thank you so much, my exams are coming up soon and your videos are helping a lot :)

[@smcartledge2723]

Happy to help! Best of luck for the exams.

[@francesca9294]

10:40 could someone please explain why this is unrelated ? how is it not repeated measures if everyone is experiencing the same experimental condition? Thanks

[@smcartledge2723]

Because nothing is being repeated. Think of every individual questionnaire as an independent group. Every participant is completing one questionnaire and so is only experiencing one level of IV. It would be a repeated measures, if they all took the questionnaire again and the answers were then compared to see if any change had occurred. I hope that helps.

[@francesca9294]

@@smcartledge2723 I think I understand now, there is only one experimental condition so it's not repeated measures. Thank you for explaining😊

[@Autunno-g6r]

Thank you sm for asking this I was so confused but scared he won’t reply since he made this video over a year ago 😭

[@olij4345]

Better than my psychology teacher

[@nicoleshar770]

Thanks 😊

[@X12387way]

hi this umis useful. But why is anoba, f test, z test, and kruskal wallis test not included. When to use this. i got a test for tomorrow. please answer

[@smcartledge2723]

The tests in the video are the only ones you need for a-level psychology. There are other tests but you don’t need them.

[@parisjewell1588]

This was really useful. Thank you 👍🏻

[@smcartledge2723]

You're welcome! Thanks for the feedback

[@scarlettalexaaa]

this is so helpful! also, for the exam do we have to learn to convert between the levels of measurement ie interval to ordinal because i saw that mentioned on another video?

[@physicswithtony3102]

Thanks

[@smcartledge2723]

You’re welcome

[@softlysoftlysoftly]

u saved me thank u

[@smcartledge2723]

Happy to help

[@La-PetitMort]

I'm in love with you