3 Subjects Every PhD Student Must take and Why?

3 Subjects Every PhD Student Must take and Why?


In this video I will show you three subjects
which every PhD student must take before starting their research and Why? If you are only interested in knowing the
names of these subjects, I have written here and you are welcome to skip this video but
if you watch this video full I am confident that you will learn few things so let’s get
started after a short break!Hello and welcome to my channel. My name is Tahir and if this is your first
time please hit the subscribe button and also the notification bell to get notified whenever
I post a new video on this channel every Tuesday and Friday so before we talk about why you
need these subjects, I would like to discuss the coursework there are various rules for
coursework some universities ask you do the coursework in your first year or even in your
second year and some universities allow you to do the coursework any time you want and
you can take any subjects here in Australia if you a PhD student, you can take any subject
whenever you want I am not a big fan of coursework because in my opinion it wastes a lot of time
the names of the subjects in your coursework might look relevant to your PhD but in fact
you will be wasting time and having said that these three subjects in my opinion are still
very important for you to take during this coursework or during first or second year
of your PhD degree I will be explaining these subjects in this order but I would like to
request you to put in the comments which subject in your opinion is most important even if
it is not listed in this list so I would appreciate that and I would like to learn something from
you so let’s talk about the first subject so this subject has many names sometimes you
might find research design sometimes you might get research design and methods or research
design and methodology essentially the subject is same when you start your PhD, so how this
subject helps you so when you start your PhD, you have a broad field then you do some literature
review what other researchers have done then you try to find your research topic you write
a research proposal now what you are trying to achieve here? you are trying to formulate your research
questions. what questions your research will be answering?
for example why something is happening? what is going on there? what is the relationship between any two factors
or any two variables? so these kind of questions are the questions which your research will
be answering so this subject will help you in many ways and those ways can be summarized
in two simple sentences so the first thing is the subject will help you to make a research
plan and the second thing is it will also help you to make a research strategy which
method to use? there are many methods whether you will be
doing experiments whether you will be doing surveys whether you will be conducting interviews
or doing some case studies or using just the historical data so what you are trying to
achieve? how you are going to achieve this? so all
this you will learn in this subject so these two important things how to plan your research
and how to chose a method this you will learn in this subject you will also learn how to
formulate your questions what questions to ask for example if you are conducting surveys
which questions you should include in your surveys which experiment you should do and
how to collect data? what is the best method to collect your data?
all these questions will be answered by this subject. your plan, your research methods, your questions,
everything related to planning of your research now let’;s talk about the second subject which
is statistics now once you get the data you got some numbers in front of you a lot of
numbers these numbers have no value until you get the answers to your questions so how
to get the answers to your questions? how to prove to someone that you were right
even if you were wrong you can still get the degree don’t worry about that but how to do
that? statistics will help you to get your answers
from the numbers to the answers statistics has some very powerful tools for example I
will start from a very simple example you all are familiar the power of the normal distribution
the bell-shaped distribution the variance analysis, linear regression, hypothesis tests,
parametric tests, correlation between the variables. So all these powerful tools you will get from
statistics and these tools will help you get the answers from your data before I talk about
the last subject, I want to discuss one more thing that is a small part of a branch of
science which is called “Data Science”. I am not a big fan of this Big Data thing
because in my opinion this is just a pile of rubbish however I like two very important
parts of this data science branch the first part is how you can tell a story from your
data? and this is not for you not for PhD students this is for those people who are
working in the corporate sector they must know how to tell a story from data now the
second part is for you, for PhD students and that is how to showcase your data? If you have learned statistics with love with
passion, you already know how to showcase your data because this statistics will show
you how to showcase your data but if not then you can search for this keyword you will find
a lot of videos on YouTube , I might make a video later on this topic “Data showcasing”
data showcasing, I love the most because this helps you how to present your data in front
of researchers, in front of scientists, in front of analysts, in front of engineers,
when you are publishing your work, you have to present your data in front of this community
and data showcasing techniques will help you to do this to present your data in a wonderful
way so therefore you should learn this as well if you are not a big fan of statistics. Now let’s talk about the last subject I have
listed here its “Linear Algebra” In many situations when you are doing research you will end up
having some vectors or matrices, in front of you now when you are handling vectors or
matrices, you will need this subject This subject is a very complex subject but the
good news is that the basic elements of this subject are very simple and straightforward
you can easily lean this now for example in few fields, you end up having a large numbers
of variables which are linearly related to each other so you get a linear equations may
be hundreds of linear equations so in this situation, you can find a functional relationship
between them by using linear algebra techniques there is one very powerful tool in linear
algebra which is called SVD Singular Value Decomposition. This is a technique which almost every researcher
use during their PhD it is such a powerful technique and this technique can reduce the
complexity of your data it reduces the redundancy and noise you can reduce the dimensions of
your data so this SVD can lead to another technique which is called Principal Component
Analysis and that technique is a very powerful technique in machine learning so this subject
is also very important in particular for engineering related fields so these were my three picks
for you so I hope that you like this video if so, please give it a thumbs up thanks for
watching and see you next time.

12 thoughts on “3 Subjects Every PhD Student Must take and Why?

  • November 22, 2019 at 8:50 am
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    Very good lecture sir

    Reply
  • November 22, 2019 at 9:22 am
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    Best ever

    Reply
  • November 22, 2019 at 10:50 am
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    Bs zoologist keliay ms konsi subjects or field may karna Chahiay China may

    Reply
  • November 22, 2019 at 11:00 am
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    Please upload such videos

    Reply
  • November 22, 2019 at 1:43 pm
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    Good Video. Thank You SIR

    Reply
  • November 22, 2019 at 8:47 pm
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    Zabardast janaab !

    Reply
  • November 23, 2019 at 4:29 am
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    Linear Algebra

    Reply
  • November 23, 2019 at 7:10 pm
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    Thank you Prof, i would gladly purchase an online course about these topics if you're planning it! Good continuation this is the most useful channel for me as a Ph.D. student, short and very informative videos.

    Reply
  • November 28, 2019 at 2:46 pm
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    Great video 👍👍👍

    Reply
  • November 28, 2019 at 4:23 pm
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    Dear dr sb. Can you please suggest any online free courses related to these subjects on udemy, coursera, edx or khan academy?

    Reply
  • November 30, 2019 at 4:47 am
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    Loved the content

    Reply
  • December 1, 2019 at 2:02 am
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    I did the first and the second during my honours and I am glad I did. My PhD is easier now having done these basic subjects.

    Reply

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