
All you need to know about ethics in social research
All you need to know about ethics in social research SHARE THE ARTICLE ON Table of Contents What are ethics in social research and why
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Take a peek at our powerful survey features to design surveys that scale discoveries.
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Steve Male
VP Innovation & Strategic Partnerships, The Logit Group
Explore Regional Offices
Find the best survey software for you!
(Along with a checklist to compare platforms)
Take a peek at our powerful survey features to design surveys that scale discoveries.
Explore VoxcoÂ
Need to map Voxco’s features & offerings? We can help!
We’ve been avid users of the Voxco platform now for over 20 years. It gives us the flexibility to routinely enhance our survey toolkit and provides our clients with a more robust dataset and story to tell their clients.
Steve Male
VP Innovation & Strategic Partnerships, The Logit Group
Explore Regional Offices
01
Sample size is the amount of responses that have been completed by respondents to your survey. It is termed as a sample as it is a representative ‘sample’ of your target audience. Respondents can be chosen at random, or selected after careful consideration (factors that determine this can include: race, gender, income, education level, etc.)
Sample sizes are required because it is not possible to survey each and every person in your target demographic. Which is why you need to select a sample that represents that demographic as closely as possible. However the issue with determining sample size is – how big of a sample do you need?
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02
If your sample size is too large, the complexity of your research increases considerably which in turn makes it more expensive. It is hard to justify the additional expense.Â
On the other hand, if your sample size is too small, then your research can be influenced by outliers and anomalies and you don’t get an accurate view of your target audience. Which is why you need to keep a few factors in mind while determining sample size.Â
If you already have the key details on hand, then you can use our sample size calculator to figure what sample size you should be targeting.
If you’re starting from scratch, the following tips should come in handy:
This is an estimate of the total number of people you are trying to understand. For example, if you were to take a random sample of people across a country, then that country’s total population is your population size.
This is a percentage which represents how confident you are that the population would select an answer within a predefined range. A 97% confidence level implies that you are 97% sure that results will be between x and y numbers (these are parameters decided by you).
This is also a percentage, and it represents how much one can expect the results of your survey to represent the views of the local population. The lower the margin of error, the more accurate your survey will be.
Your confidence level needs to be represented by a z-score. There are common z-scores for commonly used percentages which is as follows:
90% – Z Score = 1.645
95% – Z Score = 1.96
99% – Z Score = 2.576
If your confidence level happens to be different, there are multiple tools available on the internet which can help you calculate your z-score.
You can use the following formula to manually calculate your sample size:
This formula can be used if your population size is very large or unknown.Â
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03
A few things researchers need to keep in mind while figuring out their sample:
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All you need to know about ethics in social research SHARE THE ARTICLE ON Table of Contents What are ethics in social research and why
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