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

In this video, Dr. Kushner discusses the difference between a population and sample and breaks down two types of (probability) sampling: random sampling and stratified sampling.

Пікірлер: 67

  • @aliasfd345
    @aliasfd3457 ай бұрын

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

  • @borodiymaria3172

    @borodiymaria3172

    2 ай бұрын

    Exactly, same here!!

  • @myersanthonya
    @myersanthonya Жыл бұрын

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

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    Thank you for the kind words :)

  • @whatchasaynow4113
    @whatchasaynow41133 ай бұрын

    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

  • @PsychExplained

    @PsychExplained

    3 ай бұрын

    Great to hear!

  • @PsychExplained
    @PsychExplained3 жыл бұрын

    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

    2 жыл бұрын

    I think (B)

  • @RC-vp8bf

    @RC-vp8bf

    2 жыл бұрын

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

  • @calisthenicsindia8498

    @calisthenicsindia8498

    2 жыл бұрын

    B

  • @JinkunYan

    @JinkunYan

    23 күн бұрын

    B

  • @borodiymaria3172
    @borodiymaria31722 ай бұрын

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

  • @PsychExplained

    @PsychExplained

    2 ай бұрын

    Happy to help 🤓

  • @ishtiaquehussain
    @ishtiaquehussain2 жыл бұрын

    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

    2 жыл бұрын

    Glad I could help!

  • @yawrrrrrr
    @yawrrrrrr Жыл бұрын

    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!

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    thank you for the kind words :)

  • @alanadaniel9907
    @alanadaniel9907 Жыл бұрын

    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.

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    Thanks for subbing!

  • @holidaymagic8111
    @holidaymagic8111 Жыл бұрын

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

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    You're very welcome!

  • @susirialwis1965
    @susirialwis1965 Жыл бұрын

    really good - simply explained

  • @ibrahimar5496
    @ibrahimar54968 ай бұрын

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

  • @PsychExplained

    @PsychExplained

    8 ай бұрын

    So nice of you! Appreciate the message 🙏🏻

  • @pierinadanisi7097
    @pierinadanisi7097 Жыл бұрын

    love how you explain everything

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    Thank you for watching!

  • @ahmedabouraia7133
    @ahmedabouraia7133 Жыл бұрын

    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

    Жыл бұрын

    😮😊😮😮t😮😮😮😊😊😮😊😮😅😮😊😮

  • @gracelondon7131

    @gracelondon7131

    Жыл бұрын

    😅😊😅🎉😅😮😢 3:30 😢🎉

  • @gracelondon7131

    @gracelondon7131

    Жыл бұрын

    😅😊😅🎉😅😮😢 3:30 😢🎉🎉😢🎉🎉

  • @invitethelite9
    @invitethelite92 ай бұрын

    That was very helpful, thank you so much.

  • @PsychExplained

    @PsychExplained

    2 ай бұрын

    You're very welcome!

  • @ranadilevula6247
    @ranadilevula62472 жыл бұрын

    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..

  • @PsychExplained

    @PsychExplained

    2 жыл бұрын

    Happy I could help!

  • @wandadekay9282
    @wandadekay9282 Жыл бұрын

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

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    Thanks for watching :)

  • @ebunfeludu3398
    @ebunfeludu3398 Жыл бұрын

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

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    Best of luck!

  • @user-gr8jh4yo6s
    @user-gr8jh4yo6s9 ай бұрын

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

  • @PsychExplained

    @PsychExplained

    9 ай бұрын

    Glad I could help!

  • @user-sy4mp8hq6i
    @user-sy4mp8hq6i Жыл бұрын

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

  • @ayushbaral8269
    @ayushbaral82692 жыл бұрын

    Thanks a lot!

  • @houdabouljaj1889
    @houdabouljaj188911 ай бұрын

    I really appreciate it Thank you 🥰

  • @PsychExplained

    @PsychExplained

    11 ай бұрын

    You’re welcome 😊

  • @jennietomas7785
    @jennietomas778511 ай бұрын

    This was really helpful thank you ❤

  • @PsychExplained

    @PsychExplained

    11 ай бұрын

    You're so welcome!

  • @VanessaMunoz-ls2jc
    @VanessaMunoz-ls2jc2 ай бұрын

    you are a life saver

  • @PsychExplained

    @PsychExplained

    2 ай бұрын

    😇😇

  • @jensnow.6460
    @jensnow.6460 Жыл бұрын

    You're awesome

  • @GBasaula-sz7lk
    @GBasaula-sz7lk6 ай бұрын

    Wow... very informative...

  • @PsychExplained

    @PsychExplained

    6 ай бұрын

    Glad it helped!

  • @josephinepaniagua1543
    @josephinepaniagua1543 Жыл бұрын

    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

    Жыл бұрын

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

  • @g.markotuoro

    @g.markotuoro

    Жыл бұрын

    Perfect!

  • @sakibchowdhury6964
    @sakibchowdhury6964 Жыл бұрын

    What is the stratum from this stratified

  • @alfhid1947
    @alfhid1947 Жыл бұрын

    Nice video

  • @gamelihlenyathi1098
    @gamelihlenyathi1098 Жыл бұрын

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

  • @cerenboyrazz
    @cerenboyrazz11 ай бұрын

    What is the difference between Stratified Sampling and Cluster Sampling?

  • @valsvalsaraj
    @valsvalsaraj Жыл бұрын

    Excellent

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    Thanks

  • @muhumuthonimuhu7989
    @muhumuthonimuhu7989 Жыл бұрын

    Amazing

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    Thank you! Cheers!

  • @farnazali5353
    @farnazali5353 Жыл бұрын

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

  • @PsychExplained

    @PsychExplained

    Жыл бұрын

    What topics are you thinking about?

  • @paulushelena7819
    @paulushelena78199 ай бұрын

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

  • @PsychExplained

    @PsychExplained

    9 ай бұрын

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

  • @watercat258
    @watercat258 Жыл бұрын

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