Mastering Chi-Square Tests for Hypothesis Testing of Categorical Data

Nov 26, 2025

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Learn the fundamentals of Chi-square tests for categorical variables, focusing on group comparisons and frequency distributions. Explore topics such as gender ratios on campus and popular soft drink brands in America.

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Mastering Chi-Square Tests for Hypothesis Testing of Categorical Data

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Research Methods

2. . . Previouslywe looked at turning Research ideas into Research Projects. Move from a Research idea. To a General Focus Research Question. To a series of Research Questions. To Specific Research Objectives. . . . And we considered..The literature review process. Research questions and objective

934 views • 59 slides

Research Methods I

Correlated Independent Variables. In the social sciences we will often have situations in which the independent variables are correlated with each other.Education and maternal sensitivityMarital aggression and marital harmonyAge and speech rate to predict memory spanIn the case of a non-orthogon

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Research Methods I

Review. Multiple regression analyses includes two or more independent variables in the prediction of the dependent variableTwo kinds of multiple regression analyses:Orthogonal (IVs are not related)Non-orthogonal (IVs are related)Regression plane (best-fit plane like best-fit line)Y' = a bX

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Research Methods

Research Methods. Howell Istance Department of Computer Science De Montfort University. This session…. Why do you need this…. Online resources Literature reviews The nature of research Questionnaire design Structured investigations. Why do you need this…?.

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Research Methods I

What is multiple regression analysis?. Predict the dependent variable from more than one independent variables (two or more).Independent variables are not correlated to each other (they are orthogonal)Mostly found in experimental designsIndependent variables are correlated to each otherMostly f

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Overview of PSY206F – Research methods I

Overview of PSY206F – Research methods I. planning research - research design types of research design – experiments, qualitative research psychological measurement – psychometrics data analysis - statistics. Objectives:.

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Research Methods I

Why Statistics Scientific Method. A systematic, controlled, empirical and critical investigation guided by theoryState problemHypothesisTest relationships empiricallyDraw conclusions. Levels of Measurement. Qualitative vs. QuantitativeCategorical vs. ContinuousNominal vs. interval and rati

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Research Methods I

Introduction. ANOVA is very much like a t-test.It is an analysis that compares sample means with one another to see if they are significantly different from one anotherANOVA however can compare more than two sample means (like the t-test)ANOVA needs a follow-up test if the null hypothesis is reje

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Research Methods I

Different Tests of Significance. One-Sample z-test or t-testCompares one sample mean versus a population meanTwo-Sample t-testCompares one sample mean versus another sample meanIndependent t-tests (equal samples)Dependent t-tests (dependent/paired samples)One-way analysis of variance (ANOVA)Comparing several sample means.

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Research Methods..

Research Methods. Understanding and working with the major forms of research. 4 Basic Principles of Research. Objective= without bias Replicable= stands the test of time Valid= accurately measures the variables studied Reliable= results aren’t skewed.

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Research Methods

Research Methods. AP Psych – Chapter 2 Psychology’s Scientific Method Alice F. Short Hilliard Davidson High School. Psychology Majors. 2 Most Commonly Required Classes: Research Statistics A SHORT Time to Ponder

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Research Methods

Research Methods. Leadership 389. Measuring the Weight of Smoke. Sometimes things that seem immeasurable can be measured well It often takes creativity and a leap of faith to figure out how to measure some things. Outline. How do we Know? Scientific Method Four Canons of Science

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Research methods

Research methods. AP Psychology Rowland High School. Research Methods. The need for psychological science The limits of human intuition Intuition - something known or believed instinctively, without actual evidence for it (ordered share). Research Methods.

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Research Methods and Methods for Research

Research Methods and Methods for Research. There are a large variety of tools of interest for National Security and Intelligence Analysis Some generic classes might be useful to organize them These are often ambiguous and not mutually exclusive. Classes of Analytic tools.

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Research Methods

Research Methods. Review AP Psychology. Research Methods. Empirical investigation = observation Scientific method Hypothesis If A, then B Random sample and random assignment Control group Replicate. Research Methods. Controlled Experiment Establishes cause and effect relationships

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Research Methods in T&I Studies I

Research Methods in T&I Studies I. Dialect, Register, Style and Generic Conventions. Dialect, Register, Style and Generic Conventions. Text “a verbal record of a communicative event” (Brown & Yule 1983:6). Dialect, Register, Style and Generic Conventions.

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Research Methods in T&I Studies I

Research Methods in T&I Studies I. Semiotic features. Semiotic features. Semiotics The study of signs Ferdinand de Saussure (semiology) Roland Barthes Julia Kristeva Umberto Eco Charles S. Pierce (semiotics) Charles W. Morris Thomas Sebeok Umberto Eco (bridges both approaches)

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RESEARCH METHODS IN I/O PSYCHOLOGY

RESEARCH METHODS IN I/O PSYCHOLOGY. Goals of Science. Description Prediction Explanation. Research process - summarized as 5–step sequence. Statement of the problem. Design of research study. Measurement of variables. Analysis of data. Conclusions from research.

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Research Methods in T&I Studies I

Research Methods in T&I Studies I. Dr Morven Beaton-Thome 29 September 2009 Introductory Session. Overall aims of the module. To acquaint you with research resources for T&I Studies To encourage and develop critical reading and informed analysis

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Research Methods

Research Methods. Research ethics. Research Ethics. Marketplace of ideas--no scientific misconduct Research fraud = falsification of data Plagiarism = theft of words and ideas Personal and professional ethics regarding research subjects

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URBP 204A QUANTITATIVE METHODS I Survey Research I

URBP 204A QUANTITATIVE METHODS I Survey Research I. Gregory Newmark San Jose State University (This lecture is based on Chapters 7, 9 & 10 of Earl Babbie’s The Practice of Social Research, 10 th Edition . All cartoons are from CAUSEweb.org by J.B. Landers.). Populations and Samples.

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Data Analysis, Modelling and Research Methods: Qualitative Methods I

UNIVERSITY OF DUBLIN TRINITY COLLEGE Department of Sociology. Data Analysis, Modelling and Research Methods: Qualitative Methods I. MSc in Economic Policy Studies Dr. Daniel Faas 6 th March 2015. Agenda. Research design: case studies and comparative designs

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Mastering Chi-Square Tests for Hypothesis Testing of Categorical Data

Mastering Chi-Square Tests for Hypothesis Testing of Categorical Data

Presentation Transcript

Research Methods

Research Methods I

Research Methods I

Research Methods

Research Methods I

Overview of PSY206F – Research methods I

Research Methods I

Research Methods I

Research Methods I

Research Methods..

Research Methods

Research Methods

Research methods

Research Methods and Methods for Research

Research Methods

Research Methods in T&amp;I Studies I

Research Methods in T&amp;I Studies I

RESEARCH METHODS IN I/O PSYCHOLOGY

Research Methods in T&amp;I Studies I

Research Methods

URBP 204A QUANTITATIVE METHODS I Survey Research I

Data Analysis, Modelling and Research Methods: Qualitative Methods I

Research Methods in T&I Studies I

Research Methods in T&I Studies I

Research Methods in T&I Studies I