KNR 497 Foundations Slide 1 Introduction to research methods 2: Foundations continued 1.

Slides:



Advertisements
Similar presentations
Research Methods in Crime and Justice
Advertisements

There are two statistical tests for mean: 1) z test – Used for large samples (n ≥ 30) 1) t test – Used for small samples (n < 30)
Research Methods in Crime and Justice Chapter 4 Classifying Research.
Copyright © 2011 by Pearson Education, Inc. All rights reserved Statistics for the Behavioral and Social Sciences: A Brief Course Fifth Edition Arthur.
Review You run a t-test and get a result of t = 0.5. What is your conclusion? Reject the null hypothesis because t is bigger than expected by chance Reject.
1 To Hypothesize or not Hypothesize Hypothesis: An expectation about the nature of things, derived from a theory.
Philosophy of science: the scientific method
Experimental Design, Statistical Analysis CSCI 4800/6800 University of Georgia Spring 2007 Eileen Kraemer.
Evaluating Hypotheses Chapter 9. Descriptive vs. Inferential Statistics n Descriptive l quantitative descriptions of characteristics.
UNDERSTANDING RESEARCH RESULTS: STATISTICAL INFERENCE.
Evaluating Hypotheses Chapter 9 Homework: 1-9. Descriptive vs. Inferential Statistics n Descriptive l quantitative descriptions of characteristics ~
Chapter 1 Conducting & Reading Research Baumgartner et al Chapter 1 Nature and Purpose of Research.
Specifying a Purpose, Research Questions or Hypothesis
C82MCP Diploma Statistics School of Psychology University of Nottingham 1 Overview of Lecture Independent and Dependent Variables Between and Within Designs.
PPA 415 – Research Methods in Public Administration Lecture 1 – Research Design.
PY 427 Statistics 1Fall 2006 Kin Ching Kong, Ph.D Lecture 6 Chicago School of Professional Psychology.
Building Logical Arguments. Critical Thinking Skills Understand and use principles of scientific investigation Apply rules of formal and informal logic.
PSY 307 – Statistics for the Behavioral Sciences
POLITICAL SCIENCE 204A Thad Kousser, Spring 2011.
Hypothesis Testing Is It Significant?. Questions What is a statistical hypothesis? What is the null hypothesis? Why is it important for statistical tests?
INTRODUCTION TO RESEARCH Module 4. Issues...  Why are we interested in research?  What is research?  Key concepts and issues  Introduction to validity.
Sampling and Participants
Testing Hypotheses.
Testing Hypotheses I Lesson 9. Descriptive vs. Inferential Statistics n Descriptive l quantitative descriptions of characteristics n Inferential Statistics.
© 2002 Thomson / South-Western Slide 9-1 Chapter 9 Hypothesis Testing with Single Samples.
Political Science 102 May 18 th Theories and hypotheses Evidence Correlation and Causal Relationships Doing comparative research Your Term Paper.
The Argument for Using Statistics Weighing the Evidence Statistical Inference: An Overview Applying Statistical Inference: An Example Going Beyond Testing.
Chapter 8 Introduction to Hypothesis Testing
Causal Hypotheses. l Statement of relationship between an independent and dependent variable l Describes a cause and effect l Usually stated in two forms.
1 Research Design The Basics of Social Research Babbie.
1 Research Methodology Model. 2 Hypothesis a prediction of what is the case (fact) based on theory Conclusions Observation (s): Phenomena; Problem (Tree)
© 2002 Prentice-Hall, Inc.Chap 7-1 Business Statistics: A First course 4th Edition Chapter 9 Fundamentals of Hypothesis Testing: One-Sample Tests.
CHAPTER 1 HUMAN INQUIRY AND SCIENCE. Chapter Outline  Looking for Reality  The Foundation of Social Science  Some Dialectics of Social Research  Quick.
Statistics for Managers 5th Edition Chapter 9 Fundamentals of Hypothesis Testing: One-Sample Tests.
Question of the Day!  We shared a lot of examples of illogical arguments!  But how do you make a LOGICAL argument? What does your argument need? What.
Chapter 8 Introduction to Hypothesis Testing ©. Chapter 8 - Chapter Outcomes After studying the material in this chapter, you should be able to: 4 Formulate.
Chapter 20: Testing Hypotheses About Proportions AP Statistics.
Chapter 3: The Research Process Key Concepts: Specifying the Research Question and Hypothesis.
KNR 295 Honors Seminar Introduction Slide 1 Introduction to research Part one: Foundations.
Chapter 10 The t Test for Two Independent Samples
Chapter 10 The t Test for Two Independent Samples.
© Copyright McGraw-Hill 2004
URBDP 591 I Lecture 4: Research Question Objectives How do we define a research question? What is a testable hypothesis? How do we test an hypothesis?
Introduction to Research. Purpose of Research Evidence-based practice Validate clinical practice through scientific inquiry Scientific rational must exist.
Research Design. What is Research Design ? Plan for getting from the research question to the conclusion Blueprint for data collection and interpretation.
Graduate School for Social Research Autumn 2015 Research Methodology and Methods of Social Inquiry socialinquiry.wordpress.com Causality.
Graduate School for Social Research Autumn 2015 Research Methodology and Methods of Social Inquiry socialinquiry.wordpress.com Irina.
Introduction to Research
Course Overview Collecting Data Exploring Data Probability Intro. Inference Comparing Variables Relationships between Variables Means/Variances Proportions.
CHAPTER 1 HUMAN INQUIRY AND SCIENCE. Chapter Outline  Looking for Reality  The Foundation of Social Science  Some Dialectics of Social Research  Quick.
KNR 405 Intro & Validity Slide 1 KNR 405 Applied Motor Learning.
Chapter 9 Introduction to the t Statistic
T-tests Comparing the means of 2 independent similar populations.
Introduction to Research
CHAPTER 1 HUMAN INQUIRY AND SCIENCE
The majority of players were born in January, February, and March
Basics.
3 – 6 Inductive Reasoning.
Chapter 1 Definition Theory Causality
الإحصاء ومنهجية البحث Statistics and Research Methodology Fall 2016
Statistical Tests - Power
The Scientific Process
How did we come to know … Different sources of knowledge: Experience
The Least-Squares Line Introduction
Chapter 2 Methods Lecture PowerPoint © W. W. Norton & Company, 2008.
Theoretical Perspectives
Testing Hypotheses I Lesson 9.
ID1050– Quantitative & Qualitative Reasoning
Presentation transcript:

KNR 497 Foundations Slide 1 Introduction to research methods 2: Foundations continued 1

 Types of relationships  Their nature  Correlation and Causality  Mediation/Moderation  Patterns of relationships  None/positive/negative/curvilinear 3 KNR 497 Foundations Slide 2 Foundations of research 1 2 4

1 KNR 497 Foundations Slide 3 Figure 1-1 Four Types of Possible Relationships...and no relationship, of course

4 1 KNR 497 Foundations Slide 4 Foundations of research  Hypotheses  A specific statement of prediction  Inductive vs. deductive research  Deductive has ‘em, inductive often doesn’t  Types  Alternative vs. null  One-tailed vs. two-tailed  Hypothetical-deductive model  2 mutually exclusive statements (null, alternative)  Tests designed to specify which can be rejected and which cannot 2 3

1 KNR 497 Foundations Slide 5 Foundations of research  Types of data  Qualitative vs. quantitative  More a case of philosophical difference than numerical difference (in the better debates, at least)  The unit of analysis  Group vs. Individual vs. Artifact vs. Geographical unit vs. Social interaction  Hierarchical modeling 2

KNR 497 Foundations Slide 6 Foundations of research  Rationale of research  Structure of research  See figure 1.4 (next slide) 1

KNR 497 Foundations Slide 7 Figure 1-4 The Hourglass Metaphor for the Research Process 1

1 KNR 497 Foundations Slide 8 Foundations of research  Structure of research  Components of a study  Research Problem  Research Question  The treatment (or program/event – the purported cause)  The sample (the unit)  The outcome (purported effect of treatment)  The design

KNR 497 Foundations Slide 9 Foundations of research  Deduction vs. induction (see next 2 slides)

KNR 497 Foundations Slide 10 Deductive Reasoning (example) 1

KNR 497 Foundations Slide 11 Inductive Reasoning (example) 1

1 KNR 497 Foundations Slide 12 Foundations of research  Fallacies  A variety of errors of either logic or premise strength that can result in weak arguments being formed.  Beyond the remit of this course, but very important nonetheless for good research papers  Examples:  Ecological fallacy: Mistaken conclusions about an individual based on analysis of group data  Exception fallacy: Reaching a group conclusion on the basis of exceptional cases (e.g., racism)