Global Research Letters

What is sampling in research l Sampling Methods | Types and Techniques Explained

Hi i’m aisha you are watching educational hub and today we will talk about what is sampling research?  When you conduct research what is sampling research about a group of   people it’s rarely possible to collect  data from every person in that group   instead you select a sample what is sampling researchthe sample what is sampling researchis  the group of individuals who will actually   participate in the research what is sampling research there are two types of  sampling methods probability sampling it involves   random selection allowing you to make strong  statistical inferences about the whole group   non-probability sampling it involves non-random  selection based and convenience or other criteria   allowing you to easily collect data so today  we discuss and briefly introduction of sampling   methods types and techniques with examples let’s  start first we need to understand what is sampling   a sample what is sampling researchis a subset of individuals from a larger  population sampling means selecting the group   that you will actually collect data from in your  research what is sampling research for example if you are researching the   opinions of students in your university you could  survey a sample what is sampling researchof 100 students in statistics   sampling allows you to test a hypothesis  about the characteristics of a population   why are samples used in research what is sampling research samples are  used to make inferences about populations   samples are easier to collect data from because  they are practical cost-effective convenient and   manageable first you need to understand the  difference between a population and a sample what is sampling research   the population is the entire group that you  want to draw conclusions about the sample what is sampling researchis   the specific group of individuals that you will  collect data from it is important to carefully   define your target population according to the  purpose and practicalities of your project the   population can be defined in terms of geographical  location age income and many other characteristics   it can be very broad or quite narrow maybe you  want to make inferences about the whole adult   population of your country maybe your research what is sampling research  focuses on customers of a certain company patients   with a specific health condition or students in a  single school sampling frame the sampling frame is   the actual list of individuals that the sample what is sampling research will be drawn from ideally it should include   the entire target population and nobody who is not  part of that population for example you are doing   research what is sampling research on working conditions at company x your  population is all 1000 employees of the company   your sampling frame is the company’s hr database  which lists the names and contact details of every   employee sample what is sampling researchsize the number of individuals you  should include in your sample what is sampling researchdepends on various   factors including the size and variability  of the population and your research what is sampling research design   there are different sample what is sampling researchsize calculators  and formulas depending on what you want to   achieve with statistical analysis probability  sampling methods what is probability sampling   probability sampling means that every member of  the target population has a known chance of being   included in the sample what is sampling researchthere are four main types  of probability sample what is sampling research1.

Simple random sampling   in a simple random sample what is sampling researchevery member of the  population has an equal chance of being selected   your sampling frame should include the whole  population for example you want to select a   simple random sample what is sampling researchof 100 employees of company  x you assign a number to every employee in the   company database from 1 to 1 000 and use a  random number generator to select 100 numbers   2. systematic sampling systematic sampling  is similar to simple random sampling   but it is usually slightly easier to conduct every  member of the population is listed with a number   but instead of randomly generating numbers  individuals are chosen at regular intervals   for example all employees of the company are  listed in alphabetical order from the first 10   numbers you randomly select a starting point  number six from number six onwards every 10th   person on the list is selected 6 16 26 36 and  so on and you end up with a sample what is sampling researchof 100 people   3 stratified sampling stratified sampling involves  dividing the population into subpopulations that   may differ in important ways it allows you draw  more precise conclusions by ensuring that every   subgroup is properly represented in the sample what is sampling research for example the company has 800 female employees   and 200 male employees you want to ensure that the  sample what is sampling researchreflects the gender balance of the company   so you sort the population into two strata  based and gender then you use random sampling   on each group selecting 80 women and 20 men which  gives you a representative sample what is sampling researchof 100 people   4.

Cluster sampling cluster sampling also  involves dividing the population into subgroups   but each subgroup should have similar  characteristics to the whole sample what is sampling research  instead of sampling individuals from each subgroup  you randomly select entire subgroups for example   the company has offices in 10 cities across  the country all with roughly the same number   of employees in similar roles you don’t have the  capacity to travel to every office to collect your   data so you use random sampling to select three  offices these are your clusters non-probability   sampling methods what is non-probability sampling  in non-probability sampling the sample what is sampling researchis selected   based on non-random criteria and not every member  of the population has a chance of being included   non-probability sampling techniques are often  used in exploratory and qualitative research what is sampling research   in these types of research what is sampling research the aim is not to  test a hypothesis about a broad population   but to develop an initial understanding  of a small or under-researched population   common non-probability sampling methods include  1. convenience sampling a convenience sample what is sampling research  simply includes the individuals who happen  to be most accessible to the researcher   this is an easy and inexpensive way to gather  initial data but there is no way to tell if the   sample what is sampling researchis representative of the population  so it can’t produce generalizable results   for example you are researching opinions about  student support services in your university   so after each of your classes you ask your  fellow students to complete a survey on the topic   this is a convenient way to gather data but  as you only surveyed students taking the same   classes as you at the same level the sample what is sampling research is not representative of all the students   at your university 2.

Voluntary response  sampling similar to a convenience sample what is sampling research  a voluntary response sample what is sampling researchis mainly based on  ease of access instead of the researcher choosing   participants and directly contacting them people  volunteer themselves for example by responding to   a public online survey for example you send out  the survey to all students at your university   and a lot of students decide to complete it this  can certainly give you some insight into the topic   but the people who responded are more likely  to be those who have strong opinions about the   student support services so you can’t be sure that  their opinions are representative of all students   3. purposive sampling this type of sampling also  known as judgment sampling involves the researcher   using their expertise to select a sample what is sampling researchthat  is most useful to the purposes of the research what is sampling research   it is often used in qualitative research what is sampling research where the  researcher wants to gain detailed knowledge about   a specific phenomenon rather than make statistical  inferences or where the population is very small   and specific an effective purpose of sample what is sampling researchmust  have clear criteria and rationale for inclusion   for example you want to know more about the  opinions and experiences of disabled students   at your university so you purposefully select a  number of students with different support needs   in order to gather a varied range of data  on their experiences with student services   4. snowball sampling if the population is hard  to access snowball sampling can be used to.

Recruit participants via other participants the  number of people you have access to snowballs   as you get in contact with more people for  example you are researching experiences of   homelessness in your city since there is  no list of all homeless people in the city   probability sampling isn’t possible you meet one  person who agrees to participate in the research what is sampling research   and she puts you in contact with other  homeless people that she knows in the area   thank you for watching i hope you can easily  understand that what is sampling methods and types   like share and subscribe my channel for  more informative videos about research.


Where to find great research papers?

Various great research journals such as Global Research Letters are a great option and way to help you look up impactful research papers with a great format. Here, you will find a number of various research papers that are provided and made available to you in the journal, which will help you write your own paper.

You can very easily find papers on a variety of topics at Global Research Letters, which will help you with your own research work and understanding of writing and publishing research papers properly. With access to so many amazing research papers, you can practice and learn the process of writing research papers and their importance.


Leave a Comment

Your email address will not be published. Required fields are marked *