Week 1 DQ 1 Due Day 2 (Wednesday) 0.5 points What are the differences between quantitative and qualitative data? What are some examples of each? Quantitative data specifies a specific quantity; whether it is volume, length, brightness, number of individuals, etc. It means you can measure it with a number. Qualitative data specifies characteristics of something or specific outcomes of an experiment, without a specific number being attached. This could be something as simple as a yes or no answer (did the light turn on?) or more complex likes the color of something or how something tastes (salty, spicy, tangy, bitter, delicious, gross.) Some things can even be measured by either. For example, you might say that something is blue, and for the purposes of your experiment or the type of data you need, that qualitative data might be enough. But each color also corresponds to a specific wavelength of light which is measured quantitatively, and you may want to use this method if you need to be extremely specific about what color, or if you need to use your data in mathematic calculations at some point. Or you might be taking a survey of how much people like their jobs. Qualitatively you could ask
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This note was uploaded on 01/19/2012 for the course PSY 315 315 taught by Professor Tiffanycron during the Spring '11 term at University of Phoenix.