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The root of this problem is that most data sets in psychology, anthropology, and epidemiology are not as large in terms of sample size as what computer scientis
by shas3 13y ago
The root of this problem is that most data sets in psychology, anthropology, and epidemiology are not as large in terms of sample size as what computer scientists and electrical engineers encounter. p-values are a surrogate to explicitly describing the data using probability distributions or as random processes. In essence, you sacrifice granularity for simplicity. If you look at the original works of Fisher, etc. and their widespread utility, a large part of early statistics is intended for 'practical statisticians' who seldom encounter data-sets that are 'small' in terms of sample size. As someone who works in electrical engineering/computer science, I've never used the p-value because:
1. The field, in general, demands far more mathematical rigor when dealing with statistics.
2. The demand for mathematical rigor is justified because most data sets we deal with are many orders of magnitude larger than what psychologists and others encounter. So predictions based on limit theorems, etc. are often testable.
- Fomite 13y agoAs an Epidemiologist, some of the most appalling uses of statistics I've ever seen have been in electrical engineering and CS.
- shas3 13y agoCan you elaborate?
- Fomite 13y agoA little late in coming (blame the Southeast U.S.'s snowstorm), but I work in a very stats heavy field and interact with a number of CS types because I work on computational models. I've gotten a fair amount of "I just need a p-value" requests, and some assumptions that everything can be hit with a t-test or an ANOVA and it'll all work out fine.