Sampling: Population vs. Sample, Random Sampling, Stratified Sampling

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  • เผยแพร่เมื่อ 9 ก.พ. 2025

ความคิดเห็น • 72

  • @aliasfd345
    @aliasfd345 ปีที่แล้ว +9

    Great Teacher. As a ADHD-Dude i gotta say, i had no concentration issues watching you! Greetings from Germany

  • @myersanthonya
    @myersanthonya 2 ปีที่แล้ว +9

    Your teaching communicative skills are off the charts. Your simplification of a generally complex topic is refreshing. Thank you.

  • @whatchasaynow4113
    @whatchasaynow4113 ปีที่แล้ว +2

    This was a great explanation and I watched like four other videos before this. This was the best one as I am a visual learner

  • @yawrrrrrr
    @yawrrrrrr ปีที่แล้ว +3

    you teach in an amazing way sir, my concept is solid clear now. Literally spent ages looking for a good stats video since ive never studied the subject before and found this gold. THANKYOU! keep going!

  • @ArleciaBrown
    @ArleciaBrown 7 หลายเดือนก่อน +2

    You are an excellent instructor. You will go very far! I have watched any videos about this topic and still. I would end the video with the same dumb level of understanding as when I began the video. But when I stumbled across this version of the video, I had no other choice but to understand "Sampling Methods". I understand clearly the entire ramification from every introductory level aspect. thankssssssssss

    • @PsychExplained
      @PsychExplained  7 หลายเดือนก่อน

      Such kind words! Thank you so much 😊

  • @ibrahimar5496
    @ibrahimar5496 ปีที่แล้ว +2

    More cleared.... Simplified.,.. Excellent presentation.... No boring.... 👌🏻👌🏻🔥🔥 V. Good

    • @PsychExplained
      @PsychExplained  ปีที่แล้ว

      So nice of you! Appreciate the message 🙏🏻

  • @ishtiaquehussain
    @ishtiaquehussain 2 ปีที่แล้ว +5

    Giving the example of Stratosphere (i.e. layers) to explain stratified sampling was so cool! It made the missing connection in my understanding! Thanks!

  • @PsychExplained
    @PsychExplained  3 ปีที่แล้ว +14

    Check your understanding:
    Administrators at Jones Elementary School surveyed a random sample of 100 of their fourth graders to see how they felt about extending recess time from 20 minutes to 30 minutes.
    Identify the population and sample in this scenario.
    A. The population is all students at Jones Elementary School; the sample is the 100 fourth graders surveyed
    B. The population is all fourth graders at Jones Elementary School; the sample is the 100 fourth graders surveyed
    C. The population is all fourth graders at Jones Elementary School; the sample is all the students at Jones Elementary School
    D. The population is all students at Jones Elementary School; the sample is all of the fourth graders at Jones Elementary School

    • @josephbanda1663
      @josephbanda1663 3 ปีที่แล้ว +4

      I think (B)

    • @RC-vp8bf
      @RC-vp8bf 3 ปีที่แล้ว +2

      B. The population is all fourth graders at Jones Elementary School; the sample is the 100 fourth graders surveyed

    • @calisthenicsindia8498
      @calisthenicsindia8498 2 ปีที่แล้ว +1

      B

    • @JinkunYan
      @JinkunYan 9 หลายเดือนก่อน

      B

  • @مستريحييانجلش
    @مستريحييانجلش 3 หลายเดือนก่อน

    well, after reading for 20 minutes, I nearly comprehended %50 of those terminologies. Alternatively, watching your video is a great time and energy saver. Well explained.

  • @alanadaniel9907
    @alanadaniel9907 ปีที่แล้ว +4

    Thank you so much because I'm struggling. I hope your channel continues to grow because you're doing a brilliant job!
    New subscriber...looking forward to more content.

  • @ahmedabouraia7133
    @ahmedabouraia7133 2 ปีที่แล้ว +8

    You have a great methods in teaching and you simplifying the topics to make it more easy for learners to understand, thank you very much. Keep it up.

    • @gracelondon7131
      @gracelondon7131 ปีที่แล้ว

      😮😊😮😮t😮😮😮😊😊😮😊😮😅😮😊😮

    • @gracelondon7131
      @gracelondon7131 ปีที่แล้ว

      😅😊😅🎉😅😮😢 3:30 😢🎉

    • @gracelondon7131
      @gracelondon7131 ปีที่แล้ว

      😅😊😅🎉😅😮😢 3:30 😢🎉🎉😢🎉🎉

  • @borodiymaria3172
    @borodiymaria3172 11 หลายเดือนก่อน +2

    Wow I'm so glad I have found your channel! You explain very interesting and understandable ❤

    • @PsychExplained
      @PsychExplained  11 หลายเดือนก่อน +1

      Happy to help 🤓

  • @ranadilevula6247
    @ranadilevula6247 2 ปีที่แล้ว +5

    I wish you were my economic statistics tutor, I would not have had to do the course twice haha. Great video and the visuals are really helpful..

  • @holidaymagic8111
    @holidaymagic8111 2 ปีที่แล้ว +2

    Thank you, you're such a great teacher - this really helped with my research methods class for grad school!

  • @KimberlyHembree-z4p
    @KimberlyHembree-z4p ปีที่แล้ว +1

    Thank you so much. I have a hard time with some of this type of math. You explained it well

  • @pierinadanisi7097
    @pierinadanisi7097 2 ปีที่แล้ว +1

    love how you explain everything

  • @ebunfeludu3398
    @ebunfeludu3398 ปีที่แล้ว

    This is incredibly helpful to me as I prepare for my Research Methods exams tomorrow

  • @VanessaMunoz-ls2jc
    @VanessaMunoz-ls2jc 11 หลายเดือนก่อน +1

    you are a life saver

  • @susirialwis1965
    @susirialwis1965 2 ปีที่แล้ว +1

    really good - simply explained

  • @invitethelite9
    @invitethelite9 11 หลายเดือนก่อน +1

    That was very helpful, thank you so much.

    • @PsychExplained
      @PsychExplained  11 หลายเดือนก่อน

      You're very welcome!

  • @josephinepaniagua1543
    @josephinepaniagua1543 2 ปีที่แล้ว

    I've watched this video so many times! =/ I’m having difficulty with my homework! I want to know if I am doing this right. Any feedback would be highly appreciated.
    An airline company would like to know the number of pieces of carry-on luggage (on average) on each flight. However, instead of looking at every flight, the airline company decides to take a sample of flights.
    1. Describe a simple random sample to create such a sample.
    Population (N)- entirely of something- All flights
    Sample (n) - part of the population- select based on features and characteristics- first class, economy, international and domestic flights.
    In order to take a simple random sample of a sample of flights, we can select based on criteria mentioned above and use a computer random generator to generate random numbers.
    2. Describe a stratified random sampling technique to create such a sample.
    In a stratified random sampling- the population of flights would be divided into different subgroups of the population (strata). Stratas are homogenous to themselves. In this case, each characteristic can be its own strata (first class, economy, international and domestic flights). All passengers who fly economy, would be placed in one strata or subgroup. All passengers who fly first class would be placed in its own strata. All passengers who have domestic flight, would be placed in another strata. All passengers who have an international flight, would be placed into another strata. After each strata is formed, we can take a random selection sample of each strata to ensure that every specific subgroup was represented, thus we can make better inferences about the population.

    • @PsychExplained
      @PsychExplained  2 ปีที่แล้ว

      This looks great!! I wouldn't change anything :)

    • @g.markotuoro
      @g.markotuoro ปีที่แล้ว

      Perfect!

  • @GBasaula-sz7lk
    @GBasaula-sz7lk ปีที่แล้ว +1

    Wow... very informative...

  • @houdabouljaj1889
    @houdabouljaj1889 ปีที่แล้ว +1

    I really appreciate it
    Thank you 🥰

  • @jennietomas7785
    @jennietomas7785 ปีที่แล้ว

    This was really helpful thank you ❤

  • @sakibchowdhury6964
    @sakibchowdhury6964 ปีที่แล้ว +1

    What is the stratum from this stratified

  • @wandadekay9282
    @wandadekay9282 2 ปีที่แล้ว +1

    Excellent examples and descriptions! Just what I was looking for!

  • @paulushelena7819
    @paulushelena7819 ปีที่แล้ว +1

    good presentation , may you differentiate for me stratified and cluster probability

    • @PsychExplained
      @PsychExplained  ปีที่แล้ว

      I found this link which may help clarify: keydifferences.com/difference-between-stratified-and-cluster-sampling.html

  • @1Joliereine
    @1Joliereine 2 หลายเดือนก่อน

    Do you have a video about cluster sampling?

  • @gamelihlenyathi1098
    @gamelihlenyathi1098 ปีที่แล้ว

    Which method of sampling can be used when conducting a research on bullying in a certain area?

  • @valsvalsaraj
    @valsvalsaraj 2 ปีที่แล้ว +1

    Excellent

  • @jensnow.6460
    @jensnow.6460 2 ปีที่แล้ว +1

    You're awesome

  • @alfhid1947
    @alfhid1947 2 ปีที่แล้ว +1

    Nice video

  • @muhumuthonimuhu7989
    @muhumuthonimuhu7989 ปีที่แล้ว

    Amazing

  • @匿名-x5m
    @匿名-x5m 2 ปีที่แล้ว

    Thank you sir, can you also recommend a good book for this topic?

  • @ayushbaral8269
    @ayushbaral8269 3 ปีที่แล้ว +1

    Thanks a lot!

  • @farnazali5353
    @farnazali5353 2 ปีที่แล้ว +1

    Hi sir, plz upload vedios on theriotical and conceptual framework and analysis and interpretation of data.
    Our exams are nearing.

    • @PsychExplained
      @PsychExplained  2 ปีที่แล้ว

      What topics are you thinking about?

  • @cerenboyrazz
    @cerenboyrazz ปีที่แล้ว

    What is the difference between Stratified Sampling and Cluster Sampling?

  • @watercat258
    @watercat258 2 ปีที่แล้ว

    "i know im gona get hate mail from people who own rats" based chad right here