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Random Sampling increases the reliability and validity of your research findings.
To begin with,
Reliability:
By randomly picking research participants, the likelihood that they are from different backgrounds/ have different experiences etc. is higher and hence, they are said to be more representative of the population of interest.
EG: RQ: Do females have higher IQ?
A case of random sampling will pick females who are housewives/ CEOs/ Indian/ 18yrs old/ Divorced etc. the list goes on.
While a case of non-random sampling (such as picking participants at a bus stop) may only result in a sample of females who are 20 - 35 years old, working professionals.
Validity: As reliability and validity are related, for the research findings to be reliable and generalizable to the population of interest, it first has to be a valid sample.
Hence, from the above example,
EG1 provides a valid sample, while EG2 is invalid.
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What is simple random sampling and stratified random sampling?
yes
Which sampling method is based on probability?
There are many such methods: cluster sampling, stratified random sampling, simple random sampling.Their usefulness depends on the circumstances.
Are random sampling and stratified sampling one and same?
No.
What is the Difference between random and systematic sampling?
Random sampling is picking a subject at random. Systematic sampling is using a pattern to pick subjects, I.e. picking every third person.
Kinds of non random sampling technique?
Quota sampling.
Taking into account optimal sampling strategy and considering cost implications how do you determine the most appropriate sampling method to use?
THE RANDOM METHOD (: :P THE RANDOM METHOD (: :P THE RANDOM METHOD (: :P
Is convenience sampling method not a random sampling?
You are correct; convenience sampling is not random sampling.
Is cluster sampling random?
It can be but it is not simple random sampling.
What is the difference between random sampling and non random sampling?
a
What is simple random sampling and stratified random sampling?
yes
What is the difference between simple random sampling and random sampling?
Simple!
Mention different types of sampling in statistics.?
Simple Random Sample Stratified Random Sampling Cluster Sampling Systematic Sampling Convenience Sampling
What sampling method?
Random Sampling
Which sampling method is based on probability?
There are many such methods: cluster sampling, stratified random sampling, simple random sampling.Their usefulness depends on the circumstances.
Compare the efficiency of simple random sampling with systematic random sampling for estimating the population mean and give your comments?
Compare the efficiency of simple random sampling with systematic random sampling for estimating the population mean and give your comments.
Are random sampling and stratified sampling one and same?
No.
Why do you do random assignment and random sampling?
That's a random question
