External and Internal Validity

[@aayushsingh2862]

Great explanation 👍👍

[@phaith225]

Great Video... Thanks!

[@mdgj6017]

Finally I got it.. thank you!

[@TomVI1316]

Thank you so much!

[@omarelhakim4119]

very very helpful thank you !!

[@kathy9124]

Very well explained!

[@husseinmohamed6554]

Very helpful

[@siyuanhe2060]

Thanks alot.

[@whichwitchswitchedtheswiss]

Thank YOU SO MUCH

[@aaronkoh4567]

Hi, could I ask if forced choice questions (whether A is better or B is better) would affect internal validity (since the participant might not be able to choose other options which he feels more inclined to)

[@geetanish9474]

thks for clear explanation

[@simranchandra8742]

Finaly a proper explanation

[@thairsaeed431]

👍👍👍

[@rashaaboalaa6075]

Thank you❤

[@peaceokogo7344]

Hi, please what is Invalidity and what are the sources of external invalidity?

[@deveshsonam]

Thanks ❤

[@of7277]

what is/are the reference/s for this video?

[@alysonfroehlich]

I don't have any original resources to share, but I generally recommend to my students these two resources: Discovering the Scientist Within by Lewandowski et al; Research Methods in Psychology, which is an open resource provided by the University of Minnesota Libraries Publishing.

[@davidnava6320]

thank you so much.

[@gil4real82]

What do you mean how "sound?"

[@charmaine7301]

If the test measures what it purports to measure

[@thelessfam6891]

🙏🏼🤍

[@nadja5226]

why did you use an image of a black women when you were talking about IQ?

[@research_methods]

Hi Nadja. I went with the easiest photos I could find for this video that were royalty-free (which can be tricky). I wasn't sure what you were referring to, so I had to review the video. I see now which part caught your attention. I am not specifically associating black women with IQ. The examples I verbally list and the images shown don't necessarily correspond (I just got lucky with finding a photo that matched the example of age). I mean, you can see I am struggling to find photos when I show a photo of an astronaut :). Anyway, the images I DID find were an attempt to show people who are not just white, male, and and college students, which historically over-represent research participants- especially in the field of psychology. I wasn't able to represent IQ or SES in photos, but really age, IQ, and SES are just a few examples of the many, many different ways that participants can vary. The people in the photos are representing other ways that people can vary. I didn't intend for the examples I verbally said and the images shown to necessarily correspond. I apologize for the confusion and any implications that may have been assumed.

[@nadja5226]

@@research_methods It's alright, thank you for the clarification

[@1177ash1177]

This is a silly question, please post your prejudice mindset elsewhere.

[@nadja5226]

@@1177ash1177 what are you talking about? I asked that question because she talked about how age, iq and socioeconomic factores varies from the generel population and then showed a picture of a very old man, a black women (which I though she somehow implied that black women's IQ vary from the generel population in a negative way) so I wanted her to clarify why she used that picture. To be sure that there was no PREJUDICE

[@alysonfroehlich]

@@1177ash1177 It's okay that Nadja asked. It is important to be mindful of these things and to not be afraid to call them out when they do indeed happen. And to be fair, I can see how the way that part of the video is presented makes it sound like I am making the association, so I appreciate Nadja asking for clarification and giving me the opportunity to clarify.