Experimental Design: Variables, Groups, and Random Assignment
In this video, Dr. Kushner outlines how to conduct a psychology experiment. The experimental method is a powerful tool for psychologists because it is the only research design that can determine a cause and effect relationship between two variables.
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Related videos: Independent and Dependent variables: kzread.info/dash/bejne/pZaCj9umc5ndY84.htmlsi=f9GS-G3BQCQ1oqcU Random sampling: kzread.info/dash/bejne/pGGmqLGYYrHZl6w.htmlsi=-sssWM07YXmBmX8p Operational definitions: kzread.info/dash/bejne/e5mKu7OLksS3ZdI.htmlsi=hfm5C_cEUSqTmB0a
Never stop teaching or making videos! You're truly a great teacher
@PsychExplained
2 жыл бұрын
Much appreciated! Happy learning 🧠
@emaaneemaane7emaaneemaane7
7 ай бұрын
Yes exactly 💯💯💯💯
You teach with such clarity! Wow!🌟 Thankyou so much! Special mention: The board work💯
Every time I feel myself losing interest in studies, I come watch your video. You always bring it back!
@PsychExplained
10 ай бұрын
That’s so nice of you. The end is near!!
Really appreciate this video. Reading lecture notes was difficult to comprehend till i went through this. Simplified and very clear. Thanks a million
this is very clear and understandable, thank you so much for your videos!! i'm here because of my experimental research class and now i have better understanding of what i'm studying now :)
Great video! I learnt a lot. I look forward to more videos
Thank you so much for these helpful videos! Amazing teacher!
This is really well explained, thank you!
you are a Guru! Well explained Dr.
Thanks watching this just made my life easier! Keep it up sir
I wish you were my lecturer!! You make everything so much easier than mine, I have ZERO clue what mine is even saying!! Thank you so much
@PsychExplained
Жыл бұрын
Thank you for the kind words! Glad I could help.
you really help me a lot sir. its easy for me to understand all of it. and plus points because all of that key points is what i need to understand thank you sir.
Hi there! Great video! I am glad to find this video because I am about to do this kind of study for my bachelor thesis. May I know what is extraneous variable for this study? is it like the tempo/rhythm/ volume/ major or minor key of the music that would be play each experimental group? And also, do I need to do a survey on what type (genre) of music from my population before I assign each experimental group so they would "engaged" themselves with the music and also to be more precise to compare with the control group? I hope you (or any of the viewer watch this video) can help me answer these questions. Thank you!
Thank you. It was very informative.
This was very clear to understand
Thank you!
A very good lecture, keep it up
OMG!!! Why didn't I find you wayy before.. This video & explanation was everything I needed. So simple yet understandable explanation?!! Plus, my IV & DV concept is also sorted now.. I just couldn't thank you enough. Thank you so much🤎. Waiting for the next video
@PsychExplained
6 ай бұрын
You are so welcome!
Thanks a lot for ur reply, Plz upload vedios on , Plan for data analysis, quantitative and qualitative data. Item analysis, Validity and reliability if tools. In statistics, Measures of relationship, correlation, rank order correlation, scatter diagram method, Product moment correlation and simple linear regression analysis and prediction
This makes a whole lotta sense thank you for the insight sir.
@PsychExplained
3 ай бұрын
You’re welcome ☺️
Thanks a lot bro, keep making more videos👍👍
This cleared my concept. Such a brilliant explanation.
@PsychExplained
Жыл бұрын
Thank you 😊
Excellent!
Great video!
this is so helpful thank u🤝
Hello Doctor Kushner, all the way from Kenya, I really appreciate your videos, am a psychology student 2nd year. And you videos are really beneficial and expanding my brain .. kindly don't stop shooting and posting. I will appreciate if you make videos related to Social Psychology and Brain lateralization
@PsychExplained
9 ай бұрын
I’m about to post some Sensation and Perception videos. Social psychology is next!!
Wonderful! Thanks a lot :)
thanks, doc
Again this was very helpful thank you.
@PsychExplained
Жыл бұрын
Glad it was helpful!
Awesome!
Thank you so much Sir!
@PsychExplained
6 ай бұрын
Most welcome!
Very detailed thank you!
@PsychExplained
Жыл бұрын
Glad it was helpful!
OMG this vid is much easier to understand. tnx mwah
@PsychExplained
11 ай бұрын
Glad it was helpful!
Good content and very clear. Please explain solomon 4 group design
Best explanation videos ever😃
@PsychExplained
8 ай бұрын
Yay 😁
Hi Dr, how do you determine your sample size in this kind of study? Tq.
Can you explain, what if I have 3 groups of participants, and they all have different controls, ie performance is depending on whether they've had a poor breakfast, ave breakfast and good breakfast? Which are the variables? Which is controlled? How do I split this into iv and dv?
thanks alot
thanks
Very very very well explained 👏
@PsychExplained
7 ай бұрын
Glad it helped 🧠🧠🧠🧠
Any chance of getting CC on this video. I would like to link to it for my class but need CC.
@PsychExplained
8 ай бұрын
Let me try! I know you can play the video while a google doc is open and click “voice typing” under Tools. It will transcribe into text for your students.
Sir ,I know that human brain has no nociceptor. But if I ask you this - If someone touches my brain gently,will I be able to feel that?
Hi, could I ask, if a study involves letting participant watch a video of a well dressed person, and a second video of a causally dressed person, and getting them to select which person they find more trustworthy. If the hypothesis is that people would find the well dressed person more trustworthy, Would this entire study be considered an experimental study?
@PsychExplained
Жыл бұрын
Great question! I think you have a great study. And it has the potential to be classified as an experiment. A few questions - what is the IV and DV? what is the control group? What is the Experimental group? How are you going to keep all variables constant except for “dress”?
when you are talking about same - room, temp etc. what about age, gender, education background, how could we randomly select those? thank you very much!
@PsychExplained
Жыл бұрын
Great question. The purpose of random assignment is to account for these individual differences (age, gender). If you have a large enough sample, use random assignment, and create a well-designed rigorous study, these differences (income, education background) should not affect the outcome. Side note - you can’t really randomize “gender” because subjects are born male or female… However, you can do “stratified sampling” to make sure all ages, races, etc. are accounted for. I have a video called Sampling that explains this process.
perfect
@PsychExplained
3 ай бұрын
😇
Great explanasion
@PsychExplained
2 жыл бұрын
Glad you think so!
Excellent
@PsychExplained
6 ай бұрын
Thank you! Cheers!
can difference in differences be used in such an experiment?
@PsychExplained
10 ай бұрын
I’m sorry I’m not following your question
is it necessary both the groups have same no of participants?
@PsychExplained
Жыл бұрын
Yes, or at least very close
I love u 😍
Is this not the issue of where we have so little understanding about the brain, that we do these kind of tests but then do not back it up with conversations with the people? using music as example, in many of these kind of tests the group is not asked after, did they like this kind of music etc. I ask this because I am doing my own case study that we miss so much conversation (subjective) study when it comes to what we know right now and teach others within mental health and disorders. would like to have contact if possible based on your work, I am very thankful you share this work for others to learn.
how do i transcribe this
@PsychExplained
2 жыл бұрын
Hi! You can tap the “CC” closed caption icon
@paracetamod
2 жыл бұрын
@@PsychExplained i was talking about something else but i already found it, thank you tho♡
Please what about extraneous variable?
@PsychExplained
Жыл бұрын
Are you referring to extraneous (confounding) variables that may occur in the present study on studying and background music?
@gyenyame2084
Жыл бұрын
@@PsychExplained Yes please
@gyenyame2084
Жыл бұрын
@@PsychExplained sorry for the late reply I had some issues with my phone 🙏
Thanks a lot for your hard work . I am watching you from saudi arabia 🫡
@PsychExplained
Жыл бұрын
Welcome to my channel! 😁