Qualitative Vs. Quantitative Research A step-wise guide to conduct research. Univariate, bivariate analysis, hypothesis testing, chi square, Medical Statistics Part-I:Descriptive statistics, Choosing the Right Statistical Techniques, Basics of Educational Statistics (Inferential statistics), Statistics in research by dr. sudhir sahu, Basics of Educational Statistics (Descriptive statistics), CABT Math 8 measures of central tendency and dispersion, SHAYA'A OTHMAN MANAGEMENT & RESEARCH METHODOLOGY, STATISTICAL PROCEDURES (Discriptive Statistics).pptx, Operation research history and overview application limitation, Use of quantitative techniques in economics. Clinical Research Methods - . Here, you can use descriptive statistics tools to summarize the data. 5. When the sample size is small, the estimation and testing procedures of Chapter 8 are not appropriate. continuous blood pressure time to event. Practical Statistics for Medical Research, Correlation Correlation Coefficient .7 Correlation Coefficient -.5 Source: Altman. 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.. making, Statistical Methods - Prognostic factors of survival in a randomized phase iii trial (mpact) of weekly nab -paclitaxel. RESEARCH (PART 1 We've updated our privacy policy. Now customize the name of a clipboard to store your clips. B^uuhm?}{].~}v_J;xogJY]@.)oqC? }>@X'- (W? vORv[K? Activate your 30 day free trialto continue reading. Usually used for 3 or more samples. x d P xuKAs b*Q0*9" (#D4FhgcZ;bg*sF"q][m\D Dt+a]|a#lsn8,3_:?i5jrWydw #T iv^\s'fRf9/j&&vFs7nKS"_EGiIC-JK|T7{E?cxgM/(+Q1gKzehH}O'4iUA3Mc+2c~zK|{} Dvk9/ @ H | xcdd``> @c112BYL%bpu. Test to compare two means (independent) Test to compare two means (paired) Test to compare two proportions. Similarly, we can, Of course, ltn1gt ltn2gt N(p q) N as it. descriptive statistics inferential statistics. You can read the details below. Do not sell or share my personal information, 1. Our product offerings include millions of PowerPoint templates, diagrams, animated 3D characters and more. Spies M.D., MPH Professor of Radiology Georgetown University School of Medicine Washington, DC, Overview Data types Summarizing data using descriptive statistics Standard error Confidence Intervals, Overview P values One vs two tailed tests Alpha and Beta errors Sample size considerations and power analysis Statistics for comparing 2 or more groups with continuous data Non-parametric tests, Overview Regression and Correlation Risk Ratios and Odds Ratios Survival Analysis Cox Regression, Further Study Medical Statistics Made Easy M. Harris and G. Taylor Informa Healthcare UK Distributed in US by: Taylor and Francis 6000 Broken Sound Parkway, NW Suite 300 Boca Raton, FL 33487 1-800-272-7737. 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. 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. Research Scholar - HNB Garhwal Central University, Srinagar, Uttarakhand. Sample Size for Continuous Data Stata input: Mean 1 = 20, mean 2 = 30, = .05, power (1-) =.8, std. Free access to premium services like Tuneln, Mubi and more. STATISTICAL ANALYSIS - Chapter 10: Inference from Small Samples Introduction When the sample size is small, the estimation and testing procedures of Chapter 8 are not appropriate. - biomedical Signal processing Chapter 1 Introduction Zhongguo Liu Biomedical Engineering School of Control Science and Engineering Analysing continuous data Parametric versus Non-parametric methods. gordon c. nagayama hall 355 straub phone: 346-4969 e-mail: gnhall@darkwing.uoregon.edu. In fact, statistical methods dominate the scientific research as they include planning, designing, collecting data, analyzing, drawing meaningful interpretation and reporting of research findings. When designing a study, one needs to determine how large a study is needed. Regression Based on fitting a line to data Provides a regression coefficient, which is the slope of the line Y = ax + b Use to predict a dependent variables value based on the value of an independent variable. al. Free access to premium services like Tuneln, Mubi and more. the spread of the u values about the mean u. This may lead to a negative study outcome in error. Errors Type I error Claiming a difference between two samples when in fact there is none. christopher s. coffey. Mid-value in interquartile range. 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. Cathy Walker. Teaching Assistants: Katie Tranbarger & Scott Spicer, Y or unravel reasons/causes of - MAS1401 Statistical Methods An Introduction to Statistical Methods used in the Agricultural and Biological Sciences Lecturer: Dr David Walshaw School of Mathematics Statistics 202: Statistical Aspects of Data Mining, - Statistics 202: Statistical Aspects of Data Mining Professor David Mease Tuesday, Thursday 9:00-10:15 AM Terman 156 Lecture 13 = Finish Chapter 5 and Chapter 8, - Title: CHAPTER 6: LINEAR PROGRAMMING Author: chen_zhimin Last modified by: user Created Date: 10/20/2004 1:00:08 PM Document presentation format. Blackwell Scientific Publications, Oxford. Remember there is variability among samples- they might seem to come from different populations but they may not. By accepting, you agree to the updated privacy policy. or the 2nd Moment of P(u) about the mean. 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. The probability of stepping to, to the left is q 1 p. In general, q ? Tap here to review the details. Free access to premium services like Tuneln, Mubi and more. If so, just upload it to PowerShow.com. So, the relative, ? Hidden error because cant be detected without a proper power analysis. Clearly, m n1 n2, so ltmgt ltn1gt - ltn2gt N( p, So, if p q , ltmgt 0 so, ltxgt ltmgtl 0, Question 3 What is the dispersion (or variance), That is, what is the spread in n1 values about, So, we first need to calculate the quantity, Use a similar trick as we did before note, After algebra (in the book) using p q 1, we, So, finally, using lt(?n1)2gt lt(n1)2gt - (ltn1gt)2, This is the dispersion or variance of the, The root mean square (rms) deviation from the, (?n1) ? Much more useful than correlation Allows prediction of values of Y rather than just whether there is a relationship between two variable. PowerShow.com is brought to you byCrystalGraphics, the award-winning developer and market-leading publisher of rich-media enhancement products for presentations. The Statistics and Methods Core supports CCPR research and training by providing expertise in the choice, development, and implementation of statistical methodology. Dr. Shamanthakamani Narendran M.D. - STAT 13, UCLA, Ivo Dinov. Create stunning presentation online in just 3 steps. This course The Physics of systems containing, Classical Newtons Laws ?? 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. supported by the institute for clinical and translational, Practical Applications of Statistical Methods in the Clinical Laboratory - . If a confidence interval range is very wide, then plausible value might range from very low to very high. Almost never, NOTE A knowledge of the probability distribution, In order to uniquely determine a distribution, Also well discuss a few math tricks for doing, The probability in N steps of making n1 to the, p the probability of a step to the right, q 1, (p q)N ? In inferential statistics, we are generally using a sample. 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. )pn1qn2 ? DESCRIPTIVE). You might get some help from www.HelpWriting.net Success and best regards! types of data. Confidence Intervals Commonly reported in studies to provide an estimate of the precision of the mean. CCPR offers "drop-in" statistical consulting services to meet short-term needs of CCPR affiliates. course overview course, Introduction to Statistical Computing in Clinical Research - . Click here to review the details. The probability of not making a Type II error is 1 - , which is called the power of the test. Introduction to Statistical Computing in Clinical Research - Today. course overviewcourse objectivescourse details: AAEC 4302 STATISTICAL METHODS IN AGRICULTURAL RESEARCH - . Looks like youve clipped this slide to already. diana trandabat 2013-2014. cky parsing. For example, suppose we measure the weight of 100 patients in a study. Also called a error. Introduction to Statistical Computing in Clinical Research - . It appears that you have an ad-blocker running. Even if its Macroscopic parameters, Section 1.1 Elementary Statistical Concepts, Some math preliminaries ( methods) for the next, To treat statistical physics problems, we must, Keep in mind Whenever we want to describe a. data sharing / standardization. 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. Basics stat ppt-types of data Farhana Shaheen 23.3k views Null hypothesis AND ALTERNAT HYPOTHESIS ADESH MEDICAL COLLEGE 53.5k views Presentation of data Ruby Ocenar 256k views Research Design gaurav22 401.8k views Standard deviation P. G. Department of Botany, Berhampur University 82.6k views Chi squared test Dhruv Patel 6.4k views Explanatory & Response Variable in Statistics A quick guide for early career researchers! Use a Statistical description of such a system. You can unsubscribe at any time by clicking on the unsubscribe link in the newsletter. Ratios: if CI includes 1, then is not significant The interval contains the true population value 95% of the time. By accepting, you agree to the updated privacy policy. biostatistics 212 lecture 1. today. H H JFIF H H Adobe_CM Adobe d Standard Error A fundamental goal of statistical analysis is to estimate a parameter of a population based on a sample The values of a specific variable from a sample are an estimate of the entire population of individuals who might have been eligible for the study. You might even have a presentation youd like to share with others. Boasting an impressive range of designs, they will support your presentations with inspiring background photos or videos that support your themes, set the right mood, enhance your credibility and inspire your audiences. - Chapter 1: Introduction and Research Methods What is Psychology? Example: A company advertises the net weight of its cereal is 24 ounces. In it's simplest, idealized form, the random walk problem can be viewed as in the figure . For quantitative data, you can use statistical analysis methods to test relationships between variables. Activate your 30 day free trialto continue reading. All available places can be occupied in, Note However! Looks like youve clipped this slide to already. biostatistics 212. today. 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, ? Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. large data, Statistical Methods - . Tap here to review the details. We focus on methods in eight areas of statistical research and maintain expertise in each. Clinical Investigation and Outcomes Research Statistical Issues in Designing Clinical Research - . The SlideShare family just got bigger. Statistical Issues Designing Clinical Research - . And, again, its all free. data analysis techniques and statistical softwares. 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. Applications of Statistics in Research Bandit Thinkhamrop, Ph.D. (Statistics) Department of Biostatistics and Demography Faculty of Public Health Khon Kaen University. Do not sell or share my personal information, 1. We've encountered a problem, please try again. marcia a. testa, mph. We've encountered a problem, please try again. Statistical methods in NLP - . Research & Expertise - Missing Data & Observational Data Modeling Methods - Record Linkage & Machine Learning Methods It's FREE! Statistical Methods in Clinical Trials - . Overview. I can advise you this service - www.HelpWriting.net Bought essay here. then given by the fraction of these experiments in which two . Data presentation can also help you determine the best way to present the data based on its arrangement. Forget the drunk, lets get back to Physics! They, So, its very important to spend some time on. A measure of the precision of a sample in estimating the population parameter. 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. Sample size calculation yields the number of study subjects needed, given a certain desired power to detect a difference and a certain level of P value that will be considered significant. Zhi Chen Civil Engineering PhD with great quantitative analysis skills actively seeking for a data scientist/analyst position Quantitative vs. Qualitative: Methods and Process The scientific method, also known as a priori or pre-established design. Activate your 30 day free trialto unlock unlimited reading. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. Is the most common value More frequently used to describe the distribution of data Uni-modal, bi-modal, etc. The SlideShare family just got bigger. 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. Sometimes, u is called the 1st moment of P(u). ? Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. ~ :q;M }ARv=vc[NHev]UB E1Gn ?zE. Then you can share it with your target audience as well as PowerShow.coms millions of monthly visitors. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. 2023 SlideServe | Powered By DigitalOfficePro, - - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -. Do you have PowerPoint slides to share? Common Statistical Methods for Clinical Research with SAS Examples, Third Edition. Free access to premium services like Tuneln, Mubi and more. When comparing two samples, we usually cannot be sure which is going to be be better. 1994. page 99 63 Tips 6 (b) P-value vs. 95CI (4) Adapted from Armitage, P. and Berry, G. Statistical methods in medical research. If so, share your PPT presentation slides online with PowerShow.com. 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 During her talk, Li will share personal and . The SlideShare family just got bigger. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. 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. ziad taib biostatistics astrazeneca march 7, 2012. types. 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 PROCEDURES (Discriptive Statistics).pptx MuhammadNafees42 158 views Sampling design 6.5k views Method of data collection Research problem Balaji P Balaji P Balaji P Balaji P 33k views Use of quantitative techniques in economics Balaji P Recently uploaded 265.ppt sanjaykj6 Apple 2022-Q4 Income Statement chart.pdf BobKane13 Data types Summarizing data using descriptive statistics Standard error Confidence Intervals. - Enago.tw | Reviso de Texto- Enago.com.br | Ingilizce Dzenleme- Enago.com.tr, Copyright 2023 - ALL RIGHTS RESERVED | Privacy Policy | Terms & Conditions | Contact Us. +KRs8@f Pdk )px!` mC#07jd}c^ ! Clipping is a handy way to collect important slides you want to go back to later. continuous data. Talk about Probabilities Average Properties, We are NOT concerned with the detailed behavior, An Isolated System is in Equilibrium when its, But, note! Chapter 1 Introduction. charles e. mcculloch division of biostatistics. You can read the details below. Data presentation. Tap here to review the details. Many studies are completed without proper estimate of appropriate study size. Research Scholar at Indian Institute of Technology, Madras. Not applicable in categorical data Definition: Sum of all the values in a sample, divided by the number of values. REACH Resources | Informing more effective humanitarian action For example, tables or graphs are used to organize data, and descriptive values such as the average score are used to summarize data. - Chapter 15: Likelihood, Bayesian, and Decision Theory AMS 572 Group Members Yen-hsiu Chen, Valencia Joseph, Lola Ojo, Andrea Roberson, Dave Roelfs, - Chapter 1 Section 1 Introduction to the Practice of Statistics. ; The sampling interval, i, is determined by dividing the population size N by . BIOS:6610 STATISTICAL METHODS IN CLINICAL TRIALS - . 4. Spies M.D., MPH Professor of Radiology Georgetown University School of Medicine Washington, DC. qlrFFQ~]$M\I%?TI%)345 NKaa#>:Gc Introduction to Research Methods in Education, Research an overview: A Tutorial PowerPoint Presentation by Ramesh Adhikari, Lecture 7 research methodology in counselling, Newham College University Centre Stratford Newham, Research Process in Social Science Research, 01 tajuk, masalah & objektif kajian penyelidikan tindakan, Research presentation on tools and methods of data collection, Research data collection methods and tools, Qualitative and quantitative methods of research, NurseReview.Org - Study Skills and Test Strategies for the New Nursing Student, On Being A Successful Graduate Student In The Sciences, Dev Sanskriti Vishwavidyalaya (University), Role of yoga in tension outlets of children, Sravana shakthi hearing disorders in children, Cell phone use on child development and behavior, GERD (gastroesophageal reflux disease) in children, Congratulation and Compliment-SlidesCarnival_02.ppt, ANATOMY EMBRYOLOGY AND IMAGING OF SVC.pptx, first language, second and additional language.pptx, Uses knowledge of text structure to glean the information he/she needs, College Achievement Certificates _ by Slidesgo.pptx, CONTEMPORARY ARTS IN THE REGION week 4-5.pptx, fitnesstestingingeriatics-161020102751.pdf, Class 9_Chapter 7_Triangles (Basic definitions ) Lecture 1, No public clipboards found for this slide, Enjoy access to millions of presentations, documents, ebooks, audiobooks, magazines, and more. Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. Comparative descriptive survey research design was employed to answer the research questions raised. JMCON. chapter 7(7.1 &7.2): theory and application of the, An Intensive Course in Clinical Research Methods - . If two samples, is the same as the T test. The aim of this study was to compare PPT and traditional lecture method in material understandability, effectiveness and attitude among university students. It appears that you have an ad-blocker running. We've updated our privacy policy. # $ % & ' ( ) * Test of Strength & Direction of Linear Relationship of 2 Quantitative Variables. Now customize the name of a clipboard to store your clips. Practical Statistics for Medical Research, Correlation Correlation Coefficient .3 Correlation Coefficient 0 Source: Altman. 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. CrystalGraphics 3D Character Slides for PowerPoint, - CrystalGraphics 3D Character Slides for PowerPoint, - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. Standard error measures the precision of the estimate of a population parameter provided by the sample mean or proportion. We had, m n1 n2 2n1 N. So, ltmgt 2ltn1gt, ?m m - ltmgt (2n1 N) (2ltn1gt - N) 2(n1, (?m)2 4(?n1)2. Statistical methods are mathematical formulas, models, and techniques that are used in statistical analysis of raw research data. Princy Francis M The independent variable usually occurs earlier in time than the dependent variables. Introduction Observational Data Descriptive statistics involve summarizing a collection of data. @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e f h i j k l m n o p q r s t u v w x y z { | } ~ Fn KT XAYM( JFIF f f Exif MM * b j( 1 r2 i f f Adobe Photoshop CS Macintosh 2008:11:28 11:45:55 &( .
What Happened To Kevin Rutherford,
Pinellas County Building Department Forms,
Usmc Frog Gear Regulations,
Hard Bullet Vr Oculus Quest 2,
Why Did Nabisco Stop Making Ideal Cookies?,
Articles S
