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The thing that can be done to reduce bias is sampling random things

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Advantages and disadvantages of simple random sampling?

advantages: reduce bias easy of sampling disadvantages: sampling error time consuming


What is intentional Bias?

Unintentional bias means the source of the bias is in the data collection or sampling method. Its not done purposefully, but rather ignorantly.


What is the difference between Sampling error vs sampling bias?

Sampling error leads to random error. Sampling bias leads to systematic error.


What are the major source of sampling error?

The major source of sampling error is sampling bias. Sampling bias is when the sample or people in the study are selected because they will side with the researcher. It is not random and therefore not an adequate sample.


What is the difference between sampling and random sampling?

Sampling involves selecting a subset of individuals or items from a larger population for study. Random sampling is a specific type of sampling method where each individual or item in the population has an equal chance of being selected. In random sampling, the selection of individuals is done purely by chance, reducing bias in the sample.


How can a scientist reduce bias in a scientific investigation?

To reduce bias in a scientific investigation, a scientist can use randomization in sampling, blind studies, and double-blind studies. Randomization helps to minimize selection bias, while blind studies prevent participants from knowing which group they are in, reducing response bias. In double-blind studies, both the participants and the researchers are unaware of who is receiving the treatment, further minimizing bias.


Which sampling would be apporiate to survey 120000 people?

A random sampling technique, such as simple random sampling or stratified random sampling, would be appropriate for surveying 120,000 people to ensure each person in the population has an equal chance of being selected. These techniques help reduce bias and ensure the sample is representative of the population as a whole.


What are some common sampling problems that researchers encounter in their studies?

Some common sampling problems that researchers encounter in their studies include selection bias, non-response bias, sampling error, and inadequate sample size. These issues can affect the validity and generalizability of research findings.


What are the Advantage and disadvantage of purposive sampling?

Purposive sampling involves selecting participants for a study based on some characteristic that you know they have. There is nothing random about their selection - it was done with intent. An advantage of this type of sampling is that it allows the researcher to quickly hone in on the target population. A disadvantage to this form of sampling is that researcher bias can creep in to influence results, if subjects are not chosen very carefully.


What is bias sample?

Sampling bias occurs when the sampling frame does not reflect the characteristics of the population which is being tested. Biased samples can result from problems with either the sampling technique or the data-collection method. Essentially, the group does not reflect the population which is supposed to be represented in the given survey or test. For example: If the question being asked in a survey was "do American's prefer Coca-Cola or Pepsi?" and all people asked were under 18 and from California, there would be a sampling bias as the sampling frame would not accurately represent "American's".


What is the difference between the sample mean and the population mean known as?

Sampling bias.


What is differences between convenience and incidental sampling?

The difference between convenience and incidental sampling is that convenience sampling chooses the easiest people to reach when a sampling is done, whereas incidental sampling is done at random.

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