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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!
Christop Hodkiewicz
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What do quantitative observations always involve?
Quantitative observations involve quantinty or numbers .
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.'
What are the difference about quantitative and quantitative?
Nothing, quantitative and quantitative are the same thing....
What is a quantitative observation of a penny?
examples: 2.5 grams,12 pillars on the back of the penny, 60 words on the penny,4 numbers on the penny. for a quantitative observation you always have to have a number in the answer:) hope this helps
Is correlational study qualitative or quantitative?
quantitative.
What do quantitative observations always involve?
Quantitative observations involve quantinty or numbers .
Is quantitative data aways accurate why or why not?
No, because there can be measurement errors as well as errors in recording the data.
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.
What is the difference between Qualitative and Quantitative properities?
Qualitative properties describes the physical aspects of an object such as the colour. Quantitative properties describe the numerical aspects of an object. Quantitative descriptions will always have a number in in it.
What is quantitative approach?
A quantitative approach is always dealing with a quantity or numbers of some sort to prove a point. With the use of quantitative approach we improve our decision making power. It is especially useful in planning and control.
What is the advantage of direct microscopic count?
You get an accurate answer with it rather than using semi quantitative methods to get estimated results.
Advantages of quantitative research?
The advantage of quantitative research is that you will get more accurate results when comparing results using qualitative research. This type of research uses statistics and mathematical data to learn new things about something.
What is the definition of quantitative easing?
My definition of quantitative easing is reasoning your problems through thought. It allows things to becomes simpler. Life is always better when you reason.
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.'
Are hospital pregnancy test always accurate?
No , they are about 99% accurate :)
Is a negative blood pregnancy test 49 days after intercourse accurate?
There are two kinds of blood tests for pregnancy tests -- quantitative and qualitative. Assuming you've waited long enough (much less than 49 days), and the test is done properly by the lab, the quantitative test is very accurate. The qualitative blood test is about the same accuracy as urine tests. Even the home urine tests are 97% accurate. So if you took the quantitative blood test you can be very sure it's right. Even with the other tests 97% is pretty accurate. I suspect the error rate in blood labs is greater than that.
Difference between quantitative and qualitative traits?
Quantitative means it can be measured. Qualitative is something that is subjective meaning there is no way to really measure it. Example: Quantitative: 2=2=4 This is always true. Qualitative: Puppies are cute. (this is only an opinion. No facts)
