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Empiricism - Wikipedia, the free encyclopedia
Empiricism - Wikipedia, the free encyclopedia
Ibn Tufail Hayy ibn Yaqzan
Ibn Tufail Hayy ibn Yaqzan
Saturday, April 25, 2009
Friday, April 24, 2009
Descriptive statistics - Wikipedia, the free encyclopedia
Descriptive statistics - Wikipedia, the free encyclopedia: "Descriptive statistics
From Wikipedia, the free encyclopedia
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Descriptive Statistics are used to describe the main features of a collection of data in quantitative terms. Descriptive statistics are distinguished from inductive statistics in that they aim to quantitatively summarize a data set, rather than being used to support statements about the population that the data are thought to represent. Even when a data analysis draws its main conclusions using inductive statistical analysis, descriptive statistics are generally presented along with more formal analyses, to give the audience an overall sense of the data being analyzed.
Contents [hide]
1 Common uses
2 Examples of descriptive statistics
3 See also
4 External links
[edit] Common uses
A common example of the use of descriptive statistics occurs in medical research studies. In a paper reporting on a study involving human subjects, there typically appears a table giving the overall sample size, sample sizes in important subgroups (e.g. for each treatment or exposure group), and demographic or clinical characteristics such as the average age, the proportion of subjects with each gender, and the proportion of subjects with related comorbidities.
[edit] Examples of descriptive statistics
Most statistics can be used either as a descriptive statistic, or in an inductive analysis. For example, we can report the average reading test score for the students in each classroom in a school, to give a descriptive sense of the typical scores and their variation. If we perform a formal hypothesis test on the scores, we are doing inductive rather than descriptive analysis.
Some statistical summaries are especially common in descriptive analyses. Some examples fo"
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Descriptive Statistics are used to describe the main features of a collection of data in quantitative terms. Descriptive statistics are distinguished from inductive statistics in that they aim to quantitatively summarize a data set, rather than being used to support statements about the population that the data are thought to represent. Even when a data analysis draws its main conclusions using inductive statistical analysis, descriptive statistics are generally presented along with more formal analyses, to give the audience an overall sense of the data being analyzed.
Contents [hide]
1 Common uses
2 Examples of descriptive statistics
3 See also
4 External links
[edit] Common uses
A common example of the use of descriptive statistics occurs in medical research studies. In a paper reporting on a study involving human subjects, there typically appears a table giving the overall sample size, sample sizes in important subgroups (e.g. for each treatment or exposure group), and demographic or clinical characteristics such as the average age, the proportion of subjects with each gender, and the proportion of subjects with related comorbidities.
[edit] Examples of descriptive statistics
Most statistics can be used either as a descriptive statistic, or in an inductive analysis. For example, we can report the average reading test score for the students in each classroom in a school, to give a descriptive sense of the typical scores and their variation. If we perform a formal hypothesis test on the scores, we are doing inductive rather than descriptive analysis.
Some statistical summaries are especially common in descriptive analyses. Some examples fo"
Wednesday, April 22, 2009
GOOD RESEARCH PRACTICE HANDBOOK
http://www.med.monash.edu.au/epidemiology/publications/grpg2003.pdf
http://www.hero.ac.uk/uk/research/good_practice_for_new_research230.cfm
http://www.hero.ac.uk/uk/research/good_practice_for_new_research230.cfm
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