statistical methods in research ppt

She is currently a Learning / Research Analyst, working in the Centre for Learning Environment and Assessment Development (CoLEAD) at Singapore Institute of Technology (SIT). Sample Mode Infrequently reported as a value in studies. Looks like youve clipped this slide to already. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. So, the relative, ? Table of contents Methods for collecting data Examples of data collection methods Methods for analyzing data - CHAPTER 3 Review of Statistics INTRODUCTION The creation of histograms and probability distributions from empirical data. Practical Statistics for Medical Research, Correlation Correlation Coefficient .3 Correlation Coefficient 0 Source: Altman. Statistical methods are essential for scientific research. - Introduction linkage analysis, Genetic markers, mapping functions Lecture 3 Background Readings: Chapter 5 & 6 (190-193) of An introduction to Genetics, Griffiths et Chapter 15: Likelihood, Bayesian, and Decision Theory. PowerPoint PPT presentation, CHAPTER 12 STATISTICAL METHODS FOR OPTIMIZATION IN DISCRETE PROBLEMS, - Slides for Introduction to Stochastic Search and Optimization (ISSO) by J. C. Spall CHAPTER 12 STATISTICAL METHODS FOR OPTIMIZATION IN DISCRETE PROBLEMS, | PowerPoint PPT presentation | free to view, Chapter 8: Introduction to Statistical Inferences. Free access to premium services like Tuneln, Mubi and more. We had, m n1 n2 2n1 N. So, ltmgt 2ltn1gt, ?m m - ltmgt (2n1 N) (2ltn1gt - N) 2(n1, (?m)2 4(?n1)2. The four types of statistical methods and the - ResearchGate Statistical Methods - SlideShare Typically 0.05 is used, Errors Type II error Claiming there is no difference between two samples when in fact there is. Clipping is a handy way to collect important slides you want to go back to later. Statistical Issues Designing Clinical Research - . If a confidence interval range is very wide, then plausible value might range from very low to very high. GEOG: 3000- Advanced Geographic Chapter I:Introduction MIS 542 2014/2015 Fall, - Chapter I:Introduction MIS 542 2014/2015 Fall, Statistics: A Gentle Introduction By Frederick L. Coolidge, Ph.D. Sage Publications, - Statistics: A Gentle Introduction By Frederick L. Coolidge, Ph.D. Sage Publications Chapter 1 A Gentle Introduction Chapter 1*, UCLA STAT 13 Introduction to Statistical Methods. Quantitative vs. Qualitative: Prototypical Studies Experimental or correlational designs are used to reduce error, bias and the influence of extraneous . ! " Confidence Intervals Commonly reported in studies to provide an estimate of the precision of the mean. You might get some help from www.HelpWriting.net Success and best regards! STATISTICAL ANALYSIS Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. Two main statistical methods are used in data analysis: descriptive statistics, which summarizes data using indexes such as mean and median and another is inferential statistics, which draw conclusions from data using statistical tests such as student's t-test. Now customize the name of a clipboard to store your clips. A measure of the precision of a sample in estimating the population parameter. Tap here to review the details. Statistics in research - SlideShare ? The type of data defines: The summary measures used Mean, Standard deviation for continuous data Proportions for discrete data Statistics used for analysis: Examples: T-test for normally distributed continuous Wilcoxon Rank Sum for non-normally distributed continuous, Descriptive Statistics Characterize data set Graphical presentation Histograms Frequency distribution Box and whiskers plot Numeric description Mean, median, SD, interquartile range, HistogramContinuous Data No segmentation of data into groups, Frequency Distribution Segmentation of data into groups Discrete or continuous data, Box and Whisker Plots Popular in Epidemiologic Studies Useful for presenting comparative data graphically, Numeric Descriptive Statistics Measures of central tendency of data Mean Median Mode Measures of variability of data Standard Deviation Interquartile range. February 13, 2010. Whatever your area of interest, here youll be able to find and view presentations youll love and possibly download. Selection of appropriate statistical methods for data analysis You can read the details below. - Chapter 8: Introduction to Find the lower and upper confidence limits. Much more useful than correlation Allows prediction of values of Y rather than just whether there is a relationship between two variable. ~ :q;M }ARv=vc[NHev]UB E1Gn ?zE. We've updated our privacy policy. NOTE that lt(?u)2gt 0 if only if ui u for, It can easily be shown that, lt(?u)2gt 0, or, We could also define the nth moment of P(u) about, This is rarely used beyond n 2. If so, share your PPT presentation slides online with PowerShow.com. We model patterns in the data in such a way to account for randomness and uncertainty in the observations, and then draw inferences about the process or population being studied. Test about a slope. 3rd edition. Test to compare two means (independent) Test to compare two means (paired) Test to compare two proportions. Can be ratio Ratio of the measures has meaning Weight, height, Types of Data Why important? Sz_]WMi4}S:4c_KC%. Confidence Intervals May be used to assess a single point estimate such as mean or proportion. Ist Yr MSc(N) We've encountered a problem, please try again. The SlideShare family just got bigger. Research Method.ppt 1 of 70 Research Method.ppt Feb. 01, 2010 169 likes 47,695 views Education Shama Follow Advertisement Advertisement Recommended Research in education Vijayalakshmi Murugesan 2.3k views 65 slides Research methodology Md Saifullah Khalid 7.1k views 32 slides Rm chapter 2 report cheppumol 535 views 10 slides The independent variable usually occurs earlier in time than the dependent variables. 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Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. This analysis doesnt take into. ERIC - EJ1051853 - A Comparative Study on Power Point Presentation and Activate your 30 day free trialto continue reading. (n1 0?N) N!/(n1!n2! - STAT 13, UCLA, Ivo Dinov. ziad taib biostatistics astrazeneca march 7, 2012. types. PowerShow.com is brought to you byCrystalGraphics, the award-winning developer and market-leading publisher of rich-media enhancement products for presentations. Click here to review the details. A very large study might find that a difference of .1 on a VAS Scale of 0 to 10 is statistically significant but it may be of no clinical significance A large study might find many significant findings during multivariable analyses. Dr. Shamanthakamani Narendran M.D. a large study dooms you to statistical significance Anonymous Statistician. 5. biostatistics 212 lecture 1. today. @ n ? " PPT - Research Methods PowerPoint Presentation, free download - SlideServe Most commonly used in assessing the estimate of the difference between two groups. types of data. The SlideShare family just got bigger. DESCRIPTIVE). The scientific study of behavior and mental processes Philosophical Developments A Question Introduction%20linkage%20analysis,%20Genetic%20markers,%20mapping%20functions%20Lecture%203. descriptive statistics inferential statistics. biostatistics 212. today. JMCON. During her talk, Li will share personal and . Power is the ability of a study to avoid a Type II error. Schedule Introduction Data Analysis--Introduction Data Collection Instruments Issues in Research Design Sample Size Sources of Error Interquartile range Is the range of data from the 25th percentile to the 75th percentile Common component of a box and whiskers plot It is the box, and the line across the box is the median or middle value Rarely, mean will also be displayed. You can read the details below. H H JFIF H H Adobe_CM Adobe d Now customize the name of a clipboard to store your clips. Then you can share it with your target audience as well as PowerShow.coms millions of monthly visitors. - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Measures of Central Tendency - Biostatstics, GCSE Geography: How And Why To Use Spearmans Rank, ppt on data collection , processing , analysis of data & report writing, CABT Math 8 measures of central tendency and dispersion, MEASURES OF CENTRAL TENDENCY AND MEASURES OF DISPERSION, Measures of central tendency and dispersion, STATISTICAL PROCEDURES (Discriptive Statistics).pptx, SHAYA'A OTHMAN MANAGEMENT & RESEARCH METHODOLOGY, Measures of central tendency ict integration, Continuing Our Look At Primary And Secondary Data, No public clipboards found for this slide, Enjoy access to millions of presentations, documents, ebooks, audiobooks, magazines, and more. B^uuhm?}{].~}v_J;xogJY]@.)oqC? Rex Book Store ; Assessment of Learning I and II by Dr. Rosita De Guzman-Santos, LORIMAR Publishing, 2007 Ed. marcia a. testa, mph. RESEARCH (PART 1 continuous blood pressure time to event. Many of them are also animated. gordon c. nagayama hall 355 straub phone: 346-4969 e-mail: Clinical Research Methods - . lt(?n1)2gt (in general). / 0 1 2 3 4 5 6 7 8 9 : ; = > ? With respect to use of research methodology, quantitative approach (78%) is popular in user studies followed by mixed methods (10%), qualitative (8%), and multimethod (4%). Systematic Random Sampling is a method of probability sampling in which the defined target population is ordered and the sample is selected according to position using a skip interval.. +KRs8@f Pdk )px!` mC#07jd}c^ ! STATISTICS IN Chapter 1: Introduction to Statistical Methods Description: . or the 2nd Moment of P(u) about the mean. Statistics presents a rigorous scientific method for gaining insight into data. Tap here to review the details. Activate your 30 day free trialto continue reading. PPT - Applications of Statistics in Research PowerPoint Presentation The P value used is an arbitrary value P value of 0.05 equals 1 in 20 chance P value of 0.01 equals 1 in 100 chance P value of 0.001 equals 1 in 1000 chance. Explanatory & Response Variable in Statistics A quick guide for early career researchers! Clinical Research Methods - . Zhi Chen - Milwaukee, Wisconsin, United States - LinkedIn - Enago.tw | Reviso de Texto- Enago.com.br | Ingilizce Dzenleme- Enago.com.tr, Copyright 2023 - ALL RIGHTS RESERVED | Privacy Policy | Terms & Conditions | Contact Us. gordon c. nagayama hall 355 straub phone: 346-4969 e-mail: gnhall@darkwing.uoregon.edu. ? Qualitative Vs. Quantitative Research A step-wise guide to conduct research. Cathy Walker. No problem. Learn more about our, I am looking for Editing/ Proofreading services for my manuscript, Role of Statistics in Biological Research, Types of Statistical Research Methods That Aid in Data Analysis, Use of Statistical Tools In Research and Data Analysis, publication-worthy figures, tables and charts. Arriving at the Junction of Statistics and Biology: My Journey Statistical Research - Census.gov It's FREE! The Probability of an occurrence of a particular, Example In throwing a pair of dice, we can give, Note that this probability depends strongly on. ! " After N steps, the particle is at position, Let n1 of steps to the right (of N), n2, Thus, if N is odd, so is m and if N is even, so, successive steps are statistically independent, Let p the probability of stepping to the right, Since each step is statistically independent, the, But, also, clearly, there are MANY different, The of distinct possibilities is the SAME as, 1st place Can be occupied any one of N ways, 2nd place Can be occupied any one of N - 1, 3rd place Can be occupied any one of N - 2, (N 1)th place Can be occupied only 2 ways, ? By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. methods research methods quantitative methods qualitative methods mathematical statistical methods interviews structured semi structured Download Presentation Research Methods An Image/Link below is provided (as is) to download presentation PPT A Brief Introduction to Research - University of Virginia School of It appears that you have an ad-blocker running. Temporarily, lets treat p q as arbitrary, NOTE that, if p is a continuous variable, then we, Now, use this in (1) (interchanging the sum the, ltn1gt ? The dependent variable is always the property you are trying to explain; it is always the object of the research. need to solve. Each has, A molecule travels in 3 dimensions with a mean, The techniques used are Powerful General. 1994. page 99 63 Tips 6 (b) P-value vs. 95CI (4) Adapted from Armitage, P. and Berry, G. Statistical methods in medical research. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. The decision-maker for desk-rejecting a manuscript, Acceptable standard for English language quality, Retraction of articles and how authors should handle it. Statistics by Statistical Research and Training Center Philippine Statistical Association , Inc. (Power point presentation on the different concepts of Statistics) Elementary Statistics by Yonardo A. Gabuyo et. Li leads a research group called the Junction of Statistics and Biology, where she and her students focus on developing statistical and computational methods to answer important questions in biological and biomedical sciences and to extract key information from genomics and health-related data. christopher s. coffey. Statistical methods assist in classification in four ways: in devising probability models for data and classes so that probable classifications for a given set of data can be identified; in developing tests of validity of particular classes produced by a classification scheme; in comparing different classification schemes for effectiveness; and Spies M.D., MPH Professor of Radiology Georgetown University School of Medicine Washington, DC. Walker, Glenn A., and Jack Shostak. # $ % & ' ( ) * 3. Sampling.ppt - Google Slides This can be easily generalized to 2 dimensions. al. Clarification Standard Deviation measures the variability or spread of the data in an individual sample. Statistics in research - SlideShare Research, Types and objectives of research. CCPR offers "drop-in" statistical consulting services to meet short-term needs of CCPR affiliates. Sample Median Used to indicate the average in a skewed population Often reported with the mean If the mean and the median are the same, sample is normally distributed. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Introduction Observational Data Descriptive statistics involve summarizing a collection of data. So the probability, which is probably the most elementary (discrete), As another example, suppose that p q , N, The Binomial Distribution is only one example of, Most of the following results are valid for ANY, Let u a variable which can take on any of M, with probabilities P(u1),P(u2),P(u3),..,P(uM-1),P, The Mean (average) value of u is defined as, S1 P(u1) P(u2) P(u3) .. P(uM-1) P(uM), For a properly normalized distribution, S1. Statistical Tests Parametric tests Continuous data normally distributed Non-parametric tests Continuous data not normally distributed Categorical or Ordinal data, Comparison of 2 Sample Means Students T test Assumes normally distributed continuous data. Similarly, we can, Of course, ltn1gt ltn2gt N(p q) N as it. You can read the details below. Research Methods and Statistics - PowerPoint PPT Presentation - PowerShow Applications of Statistics in Research Bandit Thinkhamrop, Ph.D. (Statistics) Department of Biostatistics and Demography Faculty of Public Health Khon Kaen University. By accepting, you agree to the updated privacy policy. Methods of Collecting Data biomedical Signal processing ???????? Introduction to Statistical Computing in Clinical Research - . Forget the drunk, lets get back to Physics! P Values The probability that any observation is due to chance alone assuming that the null hypothesis is true Typically, an estimate that has a p value of 0.05 or less is considered to be statistically significant or unlikely to occur due to chance alone. gordon c. nagayama hall 355 straub phone: 346-4969 e-mail: gnhall@darkwing.uoregon.edu. Research Scholar at Indian Institute of Technology, Madras. This course The Physics of systems containing, Classical Newtons Laws ?? d d @ @@ `` H ( c Activate your 30 day free trialto unlock unlimited reading. The unit staff provide advice about what to do and how to do it as well as . Standard error measures the precision of the estimate of a population parameter provided by the sample mean or proportion. 7 Types of Statistical Analysis Techniques (And Process Steps) By accepting, you agree to the updated privacy policy. Ratios: if CI includes 1, then is not significant The interval contains the true population value 95% of the time. Usually used for 3 or more samples. Descriptive Statistics Descriptive statistics are methods for organizing and summarizing data.  4 R $ KT XAYM( "n R $ SJqO& U "n R $ 2N[q Do not sell or share my personal information. PPT Quantitative Methods - LSU Example: A relative risk of 4 might have a confidence interval of 1.05 to 9, suggesting that although the estimate is for a 400% increased risk, an increased risk of 5% to 900% is plausible. And, best of all, it is completely free and easy to use. Presentation Transcript. uji hipotesis. Test to Compare Two Population Variances. N atoms, each with magnetic moment . The mean value of the deviation from the mean, Now, lets look at (?u)2 (u - ltugt)2 (square of, Its mean value is lt(?u)2gt lt(u - ltugt)2gt, ltu2gt - 2ltugtltugt (ltugt)2 ltu2gt - (ltugt)2, This is called the Mean Square Deviation (from. course overview course, Introduction to Statistical Computing in Clinical Research - . Clinical Research Methods - . They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. When designing a study, one needs to determine how large a study is needed. Sample Mean Most commonly used measure of central tendency Best applied in normally distributed continuous data. Statistics and Methods - California Center for Population Research Statistical methods rcm business 2.3k views 34 slides Basics stat ppt-types of data Farhana Shaheen 23.3k views 35 slides Introduction to statistics akbhanj 31k views 18 slides Spss an introduction Suresh Thengumpallil 12.1k views 25 slides Data Ashutosh Mittal 26.8k views 45 slides 1.2 types of data Long Beach City College 1.8k views If it appears they are not from same population, cant tell which sample is different. It has millions of presentations already uploaded and available with 1,000s more being uploaded by its users every day. Would need to do pair-wise tests. Winner of the Standing Ovation Award for Best PowerPoint Templates from Presentations Magazine. Statistical methods in NLP - . Role of Statistics in Research - Methods & Tools for Data Analysis Data types Summarizing data using descriptive statistics Standard error Confidence Intervals. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience. And theyre ready for you to use in your PowerPoint presentations the moment you need them. Research & Expertise - Missing Data & Observational Data Modeling Methods - Record Linkage & Machine Learning Methods Test to compare several means. 2022 in a Nutshell Reminiscing the year when opportunities were seized and feats were achieved! Standard Error Standard error of the mean Standard deviation / square root of (sample size) (if sample greater than 60) Standard error of the proportion Square root of (proportion X 1 - proportion) / n) Important: dependent on sample size Larger the sample, the smaller the standard error. Activate your 30 day free trialto continue reading. Free access to premium services like Tuneln, Mubi and more. PPT - Statistical Methods in Clinical Research PowerPoint Presentation Often presented graphically as a 2 X 2 Table, Chi-Squared (2) Test Chi-Squared (2) Formula Not applicable in small samples If fewer than 5 observations per cell, use Fishers exact test, Correlation Assesses the linear relationship between two variables Example: height and weight Strength of the association is described by a correlation coefficient- r r = 0 - .2 low, probably meaningless r = .2 - .4 low, possible importance r = .4 - .6moderate correlation r = .6 - .8 high correlation r = .8 - 1 very high correlation Can be positive or negative Pearsons, Spearman correlation coefficient Tells nothing about causation, Correlation Source: Harris and Taylor. STATISTICAL TOOLS NEEDED - PowerPoint PPT Presentation Princy Francis M supported by the institute for clinical and translational, Practical Applications of Statistical Methods in the Clinical Laboratory - . 10. PDF Introduction & Basics > g collecting and describing data. Also called the error. It is the middle value from an ordered listing of the values If an odd number of values, it is the middle value If even number of values, it is the average of the two middle values. [contact-form-7 id="40123" title="Global popup two"], Effective Use of Statistics in Research Methods and Tools for Data Analysis, By clicking this checkbox you consent to receiving newsletters from Enago Academy. Statistical Methods in Clinical Trials - . When comparing two samples, we usually cannot be sure which is going to be be better. {k68vX o F?5z[gfA)aU[x[~z ^SK&Kamis~ [] 5okev{\-p5}a0Ly O/;]/nEQ)Rllp.k$n-w87[W n)f3}u=[`9cf UhsH-"A u " Standard Error Significance: Is the basis of confidence intervals A 95% confidence interval is defined by Sample mean (or proportion) 1.96 X standard error Since standard error is inversely related to the sample size: The larger the study (sample size), the smaller the confidence intervals and the greater the precision of the estimate. Overview. }>@X'- (W? vORv[K? The statistical parameters used to PSYCH 625 MENTOR Introduction Education--psych625mentor.com, - FOR MORE CLASSES VISIT www.psych625mentor.com PSYCH 625 Assignment Week 1 Descriptive and Inferential Statistics Worksheet (New Syllabus) PSYCH 625 Assignment Week 2 Probability and Statistical Analysis Worksheet (New Syllabus) PSYCH 625 Assignment Week 3 Identifying Statistical Tests in the Literature Worksheet (New Syllabus) PSYCH 625 Assignment Week 4 Comparing Means Worksheet (New Syllabus) PSYCH 625 Assignment Week 5 Correlation Worksheet (New Syllabus) PSYCH 625 Assignment Week 6 Chi-Square Worksheet (New Syllabus), - Chapter 1: Introduction Project Management Summer 2014/2015 Dr. Nouh Alhindawi Department of Software Engineering Jordan University of Science and Technology. The Statistics and Methods Core supports CCPR research and training by providing expertise in the choice, development, and implementation of statistical methodology. 63^*6oFhdBXP6mkw P_(axEknr_F.VpH^oEB~,xF.Yxl8goKNst=vq~A($rVqg$rQ/$K7v-yG_I/G?WyOKTk3QyIYzp-V^XtwR>sgZa~'C]A|#Ho52;ndYF{Z'#*h 0t`s?gai4 VUsB9. Clipping is a handy way to collect important slides you want to go back to later. For example, tables or graphs are used to organize data, and descriptive values such as the average score are used to summarize data. Types of Data Discrete Data-limited number of choices Binary: two choices (yes/no) Dead or alive Disease-free or not Categorical: more than two choices, not ordered Race Age group Ordinal: more than two choices, ordered Stages of a cancer Likert scale for response E.G. 2. Chapter 10 Data Monitoring, Monitoring Committee Function, - Chapter 10 Data Monitoring, Monitoring Committee Function & Statistical Methods. - Chapter 10: Inference from Small Samples Introduction When the sample size is small, the estimation and testing procedures of Chapter 8 are not appropriate. Is the most common value More frequently used to describe the distribution of data Uni-modal, bi-modal, etc. Data presentation can also help you determine the best way to present the data based on its arrangement. REACH Resources | Informing more effective humanitarian action data sharing / standardization. For example, suppose we measure the weight of 100 patients in a study. The SlideShare family just got bigger. PPT - Statistical Methods PowerPoint Presentation, free download - ID All available places can be occupied in, Note However! Quantitative vs. Qualitative: Methods and Process The scientific method, also known as a priori or pre-established design. Introduction We are focusing on "quantitative analysis" The general idea is to summarize and analyze data so that it is useful for decision-making We do this by calculating "measures of central tendency" and by looking for relationships (We will NOT cover formal tests of hypotheses) Primary vs. secondary data sources Data on uses Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Statistical Methods in Clinical Research. Large data sets (Corpora) of natural languages allow using statistical methods that were not possible before Brown Corpus includes about 1000000 words with POS Uploaded on Jan 02, 2020 Kimberly A Buchanan + Follow probabilities 5 chance estimating probabilities lexical categories large data sets flies 21 44 0 We've updated our privacy policy.