What is the Difference between qualitative and quantitative information?
Quantitative is like how many of the object there are, and qualitative is its color or texture (physical stuff).
Qualitative and quantitative data are both 2 important types of data. Qualitative data is data based on observation and description. An easy way to remember this, Qualitative ---> QUALity. Examples of qualitative data are when you record colors, smells, textures, etc... Quantitative data is based on numerical values. An easy way to remember this, Quantitative ---> QUANTity. An example of quantitative data are any type of numerical values.
A qualitative observation has to do with things you can't count, "The fish has black scales" is a qualitative observation. A quantitative observation has to do with things you can count, "The fish has 125 scales" is a quantitative observation. You can combine these two, an example would be "The fish has 125 black scales."
It's like the difference between QUALITY and QUANTITY. Qualitative variables have a greater bearing on the outcome due to their influence on other parameters. Quantitative variables are purely mathematical. A conclusion drawn from a mix of highly qualitative variables is more likely to be correct, even if their numeric value is not as widespread.
If I had a 25% solution of sodium chloride and I did a quantitative measurement, the interest would be in HOW MUCH was present. In this case it would be 25%. If I did a qualitative measurement, all we would be interested in is - WHAT IS PRESENT. In this case sodium chloride and water. In simple terms, qualitative is "What is present" and quantitative is "How much is present"
I'm going to make a guess you're asking the difference between qualitative and quantitative. Qualitative means what kind of and quantitative means how much of. It's easiest to explain this in chemical terms. Starting with a glass of salty water, you can taste it and say it contains salt -- that's qualitative. If you evaporate the water and measure how much salt remains -- that's quantitative .
A qualitative datum is one that is expressed as some quality/property of a particular entity, rather than a numerical value. Conversely, a quantitative datum is one that is expressed as a quantity (or number), as opposed to a quality of a particular entity. Hence, qualitative and quantitative data are essentially opposite data types.
The main difference between qualitative and quantitative research/observations are the purposes of the observations. Qualitative research uses a small number of cases to determine the underlying reasons and motivations of an action. Quantitative research uses a large number of cases to create a generalized result.
It's probably similar to the difference between qualitative and quantitative analysis. Qualitative analysis (and research) looks at what is there, quantitative analysis (an presumably research) actually measures how much is there. Since all modern science is based on exeriment (and measurement), I'm not sure how you can do realistic qualitative research.