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Ok, so now you have completed all of your data collection and are ready to analyze the results, did your "treatment" have an effect, and if so, how much of one. How are you going to complete that task?
There are a couple of possibilities.
You provide your data to a Statistician who will manipulate your data to provide you with the results you seek. (This is easer, but could prove costly.)
You manipulate the data yourself using a Statistical Analysis Software Package. (These are available through most Universities, via the computer labs, at no cost.)
Because your "budget" is limited, you choose to analyze your data yourself. Don't panic! Most of the Statistical Analysis Packages on the market today are Windows 95, 98, 2000, or NT based. As such learning to maneuver within the packages is relatively simple and straightforward. Each Statistical Analysis Package performs the standard functions of data analysis. These functions include, but are not limited to, Descriptive Statistics, such as Means, Standard Deviations, Standard Error, and Ranges, along with Regression Analysis, Frequencies, ANOVA, ANCOVA, Correlations, Logistics. Plots, Histograms, R-squared, and may others. As such, for most data analysis, almost any package you choose will provide you with the tools you need to complete your evaluations of the data.
What's Available.
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