{"id":9352,"date":"2012-06-09T23:00:51","date_gmt":"2012-06-09T23:00:51","guid":{"rendered":"http:\/\/www.homeobook.com\/?p=9352"},"modified":"2021-08-14T01:04:09","modified_gmt":"2021-08-14T01:04:09","slug":"basic-statistics-in-homoeopathic-research","status":"publish","type":"post","link":"https:\/\/www.homeobook.com\/basic-statistics-in-homoeopathic-research\/","title":{"rendered":"Basic statistics in homoeopathic research"},"content":{"rendered":"
Dr Lizmy Ajith<\/strong><\/p>\n Statistics is the field of science concerned with the collection, classification, summarising & interpretation of numerical data\u00a0<\/strong><\/p>\n Biostatistics<\/strong>: application of statistical methods in biological sciences to deal with living things<\/p>\n Medical Statistics<\/strong><\/p>\n Application of statistics in medicine<\/p>\n Sources of data collection<\/strong><\/p>\n Presentation of data<\/strong><\/p>\n Sampling<\/strong><\/p>\n Measures of central Tendency <\/strong><\/p>\n Mean X = \u2211 X<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 n<\/p>\n Eg: E.S.R of 7 subjects \u2013 7,5,3,4,6,4,5<\/p>\n Mean = 7+5+3+4+6+4+5\u00a0\u00a0\u00a0 =\u00a0 4.86<\/p>\n Median It implies the mid value of series.<\/p>\n Eg: E.S.R. of 7 subjects arranged in ascending order are, 3, 4, 4, 5, 5, 6,7<\/p>\n The 4th<\/sup> observation i.e. \u20185\u2019 is the median<\/p>\n Mode Eg: the size of induration in tuberculin test of 10 boys \u2013 3, 5, 7, 7, 8, 8, 8, 10 ,11, 12<\/p>\n The mode here is \u20188\u2019<\/p>\n Measures of variability No 2 measurements in man are absolutely equal<\/p>\n Measures of variability of observations help to find how individual observations are dispersed around the mean<\/p>\n Measures of variability<\/p>\n Range Eg: systolic B.P 100-140mm of Hg<\/p>\n Mean deviation MD = \u2211 X – X<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 n<\/p>\n Mean deviation about mean<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = sum of the absolute deviation from the mean \/ No: of observation<\/p>\n Standard deviation<\/strong><\/p>\n Square root of the average of the sum of the squares of deviations taken from the mean<\/p>\n \u221a \u2211 (x \u2013 x\u00a0 )2 <\/sup><\/p>\n \u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/sup>\u00a0n<\/p>\n Indicates whether the variation of difference of an individual from the mean is by chance or real<\/p>\n Standard error<\/p>\n Difference between sample & population values<\/p>\n Is a measure of chance variation<\/p>\n SE = SD \/ \u221an<\/p>\n Correlation Eg: relation between cholesterol level & B.P<\/p>\n Regression <\/strong><\/p>\n Probability or chance Eg: chances of one drug being better than the other<\/p>\n Test of significance <\/strong><\/p>\n Stages in performing a test of significance<\/strong><\/p>\n Paired \u2018t\u2019 test<\/strong><\/p>\n t = x<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 SE<\/p>\n Dr Lizmy ajith<\/strong>, B.H.M.S, M.D(HOM) Dr Lizmy Ajith Statistics is the field of science concerned with the collection, classification, summarising & interpretation of numerical data\u00a0 Biostatistics: application of statistical methods in biological sciences to deal with living things Medical Statistics […]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":31273,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[2200],"class_list":{"0":"post-9352","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-research-homoeopathy","8":"tag-basic-statistics-in-homoeopathic-research"},"yoast_head":"\n\n
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\n<\/strong>Arithmetic average obtained by summing up all the observation & dividing the total by the No: of observations<\/p>\n
\n<\/strong>The middle observation when\u00a0 all the observation are arranged in ascending or descending order<\/p>\n
\n<\/strong>Most frequently occurring observation in a series<\/p>\n
\n<\/strong>Variability: biological data collected by measurement or counting.<\/p>\n\n
\n<\/strong>The normal limits of a biological characteristic<\/p>\n
\n<\/strong>Mean of the absolute deviation from the central tendency<\/p>\n
\n<\/strong>The relationship or association between two quantitatively measured variables.<\/p>\n\n
\n<\/strong>It is a ratio of occurrence of favorable chances out of the total possible outcomes.<\/p>\n\n
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\nDept. of Practice of Medicine,
\nGovt. Homoeopathic Medical College,Kozhikode<\/p>\n","protected":false},"excerpt":{"rendered":"