statistical methods in research ppt statistical methods in research ppt

- Introduction to Hypothesis Testing Chapter 8 - Chapter Outcomes After studying the material in this chapter, you should be able to: Formulate null and alternative An Introduction to Statistical Problem Solving in Geography - 2nd Edition. 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. The SlideShare family just got bigger. Here, you can use descriptive statistics tools to summarize the data. Is the most common value More frequently used to describe the distribution of data Uni-modal, bi-modal, etc. So, we need to divide the result by n1!n2! You can read the details below. 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 to Statistical Methods Description: . The SlideShare family just got bigger. marcia a. testa, mph. ziad taib biostatistics astrazeneca march 7, 2012. types. ! " > g 3. Sz_]WMi4}S:4c_KC%. Data presentation can also help you determine the best way to present the data based on its arrangement. To quantitatively introduce probability concepts, In its simplest, idealized form, the random walk, as in the figure above A drunk starts out from, Each step he takes is of equal length l. The man, direction of each step (right or left) is, preceding step. Comparative descriptive survey research design was employed to answer the research questions raised. )pn1qn2 ? 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, ? Zhi Chen Civil Engineering PhD with great quantitative analysis skills actively seeking for a data scientist/analyst position Our product offerings include millions of PowerPoint templates, diagrams, animated 3D characters and more. 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. 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 ? 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. Overview. 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. (Ensemble the French word for assembly). Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. (Pearsons) Chi-Squared (2) Test Used to compare observed proportions of an event compared to expected. Research, Types and objectives of research. RESEARCH (PART 1 Descriptive Statistics Descriptive statistics are methods for organizing and summarizing data. Click here to review the details. Most commonly used in assessing the estimate of the difference between two groups. Analysis of Variance Used to determine if two or more samples are from the same population- the null hypothesis. Do not sell or share my personal information, 1. If it appears they are not from same population, cant tell which sample is different. She is currently a Learning / Research Analyst, working in the Centre for Learning Environment and Assessment Development (CoLEAD) at Singapore Institute of Technology (SIT). > @=P p8L\ +Dt{?l$ 1 bv p> x]lepm BViXJC9%Q?GMjR"&O`}g1U.A4}0h)}k$BL/@Cx|v{dfvo~vS C a pT} m[;(u\M#w'l@)d^xp2-@Y]v`[^(Crm^N4' >N+:{j? 6}KyX Now customize the name of a clipboard to store your clips. u " Schedule Introduction Data Analysis--Introduction Data Collection Instruments Issues in Research Design Sample Size Sources of Error Tentative date of next journal submission: For what are you most likely to depend on AI-assistance? Free access to premium services like Tuneln, Mubi and more. - 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. Explanatory & Response Variable in Statistics A quick guide for early career researchers! You might even have a presentation youd like to share with others. Princy Francis M 2022 in a Nutshell Reminiscing the year when opportunities were seized and feats were achieved! p. The, the lamp post is at x 0. Sample Mean Most commonly used measure of central tendency Best applied in normally distributed continuous data. 1994. page 99 63 Tips 6 (b) P-value vs. 95CI (4) Adapted from Armitage, P. and Berry, G. Statistical methods in medical research. types of data. 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. Sometimes, u is called the 1st moment of P(u). And theyre ready for you to use in your PowerPoint presentations the moment you need them. Clipping is a handy way to collect important slides you want to go back to later. Analysis of Time Series Data 9.1 Basic concepts 9.2 General model formulations 9.3 Smoothing methods 9.4 OLS regression models 9.5 Stochastic time series CHAPTER 2 Research Methods in Industrial/Organizational Psychology. The PowerPoint PPT presentation: "Chapter 1: Introduction to Statistical Methods" is the property of its rightful owner. Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. Chapter 2 - Summary. 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. need to solve 1023, Quantum Schrdingers Equation ?? strongly agree, agree, neither agree or disagree, etc. If so, share your PPT presentation slides online with PowerShow.com. Use of emergent design utilizing constant comparison and revision. We had, m n1 n2 2n1 N. So, ltmgt 2ltn1gt, ?m m - ltmgt (2n1 N) (2ltn1gt - N) 2(n1, (?m)2 4(?n1)2. ? Also called a error. You might get some help from www.HelpWriting.net Success and best regards! (N-n1)!n1pn1qn2, But, for our special case (p q) 1, (p q)N-1, Summary The mean number of steps to the right, We might have guessed this! The probability of stepping to, to the left is q 1 p. In general, q ? If a confidence interval range is very wide, then plausible value might range from very low to very high. 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. Qualitative Vs. Quantitative Research A step-wise guide to conduct research. diana trandabat 2013-2014. the sentence as a string of words e.g i saw the lady with. Data presentation is an extension of data cleaning, as it involves arranging the data for easy analysis. (n1 0?N) N!/(n1!n2! Dr. Shamanthakamani Narendran M.D. I am looking for Editing/ Proofreading services for my manuscript Looks like youve clipped this slide to already. Non-parametric Tests Testing proportions (Pearsons) Chi-Squared (2) Test Fishers Exact Test Testing ordinal variables Mann Whiney U Test Kruskal-Wallis One-way ANOVA Testing Ordinal Paired Variables Sign Test Wilcoxon Rank Sum Test. Can be ratio Ratio of the measures has meaning Weight, height, Types of Data Why important? - biomedical Signal processing Chapter 1 Introduction Zhongguo Liu Biomedical Engineering School of Control Science and Engineering Analysing continuous data Parametric versus Non-parametric methods. Statistical Issues Designing Clinical Research - . And, again, its all free. Sample size for proportions Stata input: Mean 1 = .2, mean 2 = .3, = .05, power (1-) =.8. Statistical methods in medical research. 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. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. ` / 0 D A r i a l G r a n d e 0 P P \, O0 D L u c i d a G r a n d e 0 P P \, O0 @ . 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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. Methods of Collecting Data biomedical Signal processing ???????? Use a Statistical description of such a system. Free access to premium services like Tuneln, Mubi and more. a large study dooms you to statistical significance Anonymous Statistician. For routine medical research, use only two-sided tests. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. The aim of this study was to compare PPT and traditional lecture method in material understandability, effectiveness and attitude among university students. 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. Ist Yr MSc(N) 4. Free access to premium services like Tuneln, Mubi and more. Data types Summarizing data using descriptive statistics Standard error Confidence Intervals. Types of data Continuous data Theoretically infinite possible values (within physiologic limits) , including fractional values Height, age, weight Can be interval Interval between measures has meaning. Statistical methods are essential for scientific research. P values, Statistical Methods in Clinical Research James B. The Statistics and Methods Core supports CCPR research and training by providing expertise in the choice, development, and implementation of statistical methodology. Quantitative vs. Qualitative: Methods and Process The scientific method, also known as a priori or pre-established design. Standard error measures the precision of the estimate of a population parameter provided by the sample mean or proportion. Medical Statistics Made Easy, Correlation Perfect Correlation Source: Altman. During her talk, Li will share personal and . august 12, 2009. 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. descriptive statistics inferential statistics.