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Quantitative Data is only as good as the following:
1)The accuracy of the tools or machines used to measure whatever it is that is obtaining the data. For example, one of the reasons that the calipers to measure bolts for spacecrafts cost the huge amounts we all laugh about is not a laughing matter. The required precision is so high it is not the same as the precision that one might need for a school project!
2) Human error. Somebody is doing the measurements or adding reagents if it is an experiment, and so on. For example, someone came to my home to test the water. They had a type of device that could measure how much color was caused by a reagent added to water. Sounds good right? Not so right. The people did not know how to add water correctly to a test tube so that the correct amount of water mixed with the correct amount of reagent!
3) Computer error. Don't think it does not happen!
Despite the drawbacks, overall quantitative data is generally BETTER than qualitative, but it is not perfect. Remeber Apollo 13!
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What are quantitative measurements?
Quantitative measurements are those which involve the collection of numbers. It is the opposite of qualitative data which are observations. For example, if you were interested in looking at height. Quantitative measurements would be taking an accurate measurement of everyone. Qualitative data would be looking at the person and putting them into a category of 'tall,' 'medium,' 'short.'
For a distribution always mean exists?
No, not always. It depends on the type of data you collect. If it is quantitative data, you will be able to calculate a mean. If it is qualitative data, a mean can't be calculated but you can describe the data in terms of a mode.
What graph is used for quantitative data?
Any kind of graph can be used for quantitative data.
Examples of quantitative data?
Quantitative data is Information that can be expressed in numerical terms, counted, or compared on a scale. An example of a quantitative data is: 'the number of 911 calls received in a month'.
What is quantative data?
The main difference between qualititative and quantitative data is the numeric information. In quliatative data we only rely on information from the field which is not numeric and the quantitative data contains numerica data. That's why quantitative data is also know as mathematic dats.
Is quantitative data aways accurate why or why not?
No, because there can be measurement errors as well as errors in recording the data.
What is the similarities between quantitative data and quantitative data?
don't you mean quantitative data and qualitative data?
What is quantitative data and what is the best way to collect quantitative data?
quantitative data is the characteristics obtained from an experiment usually the best way to collect quantitative data is to observe your subject.
4 What is Quantitative Data and what is the best way to collect quantitative data?
quantitative data is the characteristics obtained from an experiment usually the best way to collect quantitative data is to observe your subject.
Is numerical data quantitative or qualitative?
Numerical data is quantitative research
What are quantitative measurements?
Quantitative measurements are those which involve the collection of numbers. It is the opposite of qualitative data which are observations. For example, if you were interested in looking at height. Quantitative measurements would be taking an accurate measurement of everyone. Qualitative data would be looking at the person and putting them into a category of 'tall,' 'medium,' 'short.'
Importance of quantitative methods?
Quantitative methods of studying are important because they give greater picture ideas of a population. This means that the data collected is a more accurate picture of what is going on in the population.
For a distribution always mean exists?
No, not always. It depends on the type of data you collect. If it is quantitative data, you will be able to calculate a mean. If it is qualitative data, a mean can't be calculated but you can describe the data in terms of a mode.
Is the length of a movie quantitative or qualitative data?
The length of a movie is quantitative data.
What different qualitative data and quantitative data?
Quantitative data is quantity - how much. Qualitative data is quality - is it good? what is it like?
What are disadvantages of median?
not always accurate, depending on data
What graph is used for quantitative data?
Any kind of graph can be used for quantitative data.
