TY - BOOK AU - Swain, A.K.P.C. TI - A text book of research methodology SN - 9788127241728 U1 - 001.42 PY - 2007/// CY - Ludhiana PB - Kalyani N1 - 1. INTRODUCTION Science and Scientific Method 1.2 What is Research ? 1.2.1 Characteristics of Research 1.2.2 Research and Scientific Method 1.2.3 Purpose of Research 1.2.4 Rationale of Research 1.2.5 Significance of Research 1.2.6 Desiderata of a Good Research 1.3 Kinds of Research 1.4 Types of Research 1.5 Research Methods and Research Methodology 1.6 Research Design 1.7 Ethics in Research 1.8 Different Approaches to Research 1.8.1 Scientific and Non-sclentlflc Approaches. 1.8.2 Quantitative and Qualitative Approaches 1.9 Management Research 1.9.1 Meaning and Significance of Management Research 1.9.2 Nature and scope of Business Research 1.9.3 Types of Business Research Studies 1.9.4 Limitations of Business Research. 1.9.5 The Manager-Researcher Relationship. 1.10 Foundations-Basic Concepts and Connections 1.10.1 Concepts 1.10.2 Constructs 1.10.3 Definitions 1.10.4 Variables 1.10.5 Measurement 1.10.6 Levels of Measurement 1.10.7 Validity and Reliability 1.10.8 Types of data 1.10.9 Deduction and Induction 1.10.10 Unit of Analysis 1.10.11 Concept Mapping EXERCISES 2. THE RESEARCH PROCESS 2.1 Introduction 2.2 Components of Research Study 2.3 Research Planning 2.3.1 Basic Steps In a Research Plan 2.4 The Sponsor/manager Research Question Hierarchy 2.5 Review of Literature 2.5.1 Need for the Literature Review 2.6 Research Problem 2.6.1. What Is a Reaearch Problem ? 2.6.2 Identification of a Problem 2.6.3 Formulation of Research Problems • Qualitative Research Problems • Quantitative Research Problem 2.6.4 Origin of Research Problem 2.6.5 Statement of the Problem 2.6.6 Some Common Mistakes In problem-formulation 2.6.7 Evaluation of a proposed Research Problem 2.6.8 Check List for testing the feasibility of the Research problem 2.7 The Research Question 2.7.1 Types of Questions 2.8 The Hypothesis 2.8.1 Definition Hypothesis 2.8.2 The Role of Hypothesis 2.8.3 Nature of H}rpothesls 2.8.4 Types of Hypothesis 2.8.5 liieory and Hypothesis 2.8.6 Deductive and Inductive Hypothesis 2.8.7 Difference between Hypothesis and Problem 2.8.8 What Is a Good HypoUiesls ? 2.8.9 What Is a Research hypothesis ? 2.8.10 Scientific Hypothesis versus Statistical Hypothels 2.8.11 Research Hypothesis and null Hypothesis 2.8.12 Formulation of Hypothesis 2.8.13 Generation of Research Hypothesis. 2.8.14 Testing the Hypothesis 2.8.15 Theory and Model 2.9 Research Objectives 2.10 Research Methods 2.10.1 Qualitative Research 2.10.2 Quantitative Research 2.10.3 Basic difference between Quantitative and Qualitative Research Methods 2.10.4 Some selected Research Methods Descriptive Research Exploratory Research Action Research Historical Research Case Studies Ethnographic Research Survey Research Observation Research Field Research Correlational Research Ex. post-facto Research Experimental Research Evaluation Research. 2.11 The Research Proposal 2.11.1 Types of Research Proposals 2.11.2 Structure of a Research Proposal 2.11.3 Common Mistakes in Proposal Writing. 2.11.4 Ethics in Business Research 2.11.5 Steps in Conducting Research EXERCISES 3. RESEARCH DESIGN 3.1 What is a Research Design ? 3.2 , Need for Research Design 3.3 Structure of a Research Design 3.4 Classification of Research Designs. 3.5 Characteristics of a good Research Design 3.6 Formulation of a Research Design 3.7 Research Design Versus Research Method 3.8 Quantitative and Qualitative Research (Are they designs or methods ?) 3.9 Basic Research Designs 3.9.1 Exploratory Research • Secondary data Analysis • Experience Surveys The Focus Group • Case Studies , , 3.9.2 Conclusive Research • Descriptive Research • Causal Research , 3.9.3 Research Design : a sceptical Approch to Research 3.9.4 Research Design : Plausible Rlvsil (Hypothesis. EXERCISES 4. MEASUREMENT PROBLEMS AND SCALING TECHNIQUES 4.1 What Is measurement ? 4.2 Data types and measurement scales. 4.3 Sources of measurement error 4.4 Characteristics of good measurement • Reliability and validity • Practicality 4.5 Selection of Measurement Scales 4.5.1 Response Methods • Rating Scale • Ranking Scale 4.5.2 Measurement Scale Construction • Arbitrary Scaling • Consensus Scaling • Item Analysis Scaling • Cumulative Scaling • Factor Scaling 4.6 A Comparison of Scaling Techniques .and their construction 4.6.1 Comparative Scales 4.6.2 Non-Comparative Scales 4.7 Non-Comparative Itemized Rating Scale Decisions 4.8 Choosing an Approporlate Scale 4.9 Advanced Scaling Techniques EXERCISES 5. SOURCES AND METHODS OF COLLECTION OF DATA 5.1 Sources of Data 5.1.1 Prlmaiy Sources 5.1.2 Secondary Sources 5.1.3 Tertiary Sources 5.2 Secondary Data • Advantages • Disadvantages • Internal data sources • External data sources 5.2.1 Exploring Secondary Data 5.2.2 Searching a Bibliographic Database 5.2.3 Searching the World Wide Web 5.2.4 Search Engine • Challenges faced by search engines • How search engines work ? • Categories of search engines • Vertical search engines Data Mining • Data warehouse architecture • Data storage methods • Advantages of using data warehouses • Concerns in using data warehouses • Data Mining • Data Mining Techniques 5.2.6 Government Publications Primary Data 5.3.1 Qualitative Research Techniques The Experience Survey The Case Study The Pilot Study In-Depth Interview The Focus Group Brain Storming Panels Consumer Panels The Nominal Group Technique The Delphi Method Projectlve Techniques 5.3.2 Quantitative Research Techniques A. Observation technique The Observer—^Participant Relationship How to conduct an observational study ? Classification of observation methods Content specification of observations Who should be an observer ? Data Collection Advantages of the observational Methods Limitations of the observational Methods B. Survey Techniques Telephone — Personal Interviewing Nature of Interview The Interviewer's task Instrument for participant communication Objectives of a Questionnaire Design process for a questionnaire Question Structure Types of Questions Question Content Question Wording Response Strategy Logical Order and Sequencing Selecting an optimal method Outsourcing C. Experimentation What are experiments ? What Is causality ? What Is an experimental design ? Advantages of experiment^ Disadvantages Steps for conducting an experiment Validity In experimentation Extraneous variables Control of Extraneous variables Experimental Research Designs Quasi-experimental Designs Time Series Design Multiple Time Series Design Statistical Designs Basic Principles of Design of Experiments Selection of an Experimental Design Completely Randomised Design Randomised Block Design Latin Square Design Factorial Experiments Laboratory experiments Vrs Field experiments Limitations of experimentation EXERCISES 6. PROCESSING OF DATA (DATA PREPARATION AND PRESENTATION) 6.1 Introduction 6.2 Editing 6.3 Codl^ig 6.4 Data Entry Formats 6.5 Condensation/Summarization of Data 6.5.1 6.5.2 6.5.3 6.5.4 Classification of data • Advantages of Classification • Kinds of Classification Seriation of Data Tabulation • Salient features of a Table • Types of Table Graphical Representation of Data • Techniques of Construction • Types of Graphs : • Time series graph • Two variables graph • Frequency graph —Histogram —Frequency polygon 6.5.5 EXERCISES —Frequency curve —Cumulative frequency graph • Classiflcation of graphs according to scales Diagrammatic Representation of Data • Types of Diagrams • Bar Diagrams • Area and Volume Diagrams • Angular or Pie Diagram • Pictorial Diagrams • Statistical Maps • Choosing a Diagram 7. BASIC DESCRIPTIVE STATISTICS 7.4 7.1 Introduction 7.2 Rate, Ratio and Proportion 7.3 Measures of central tendency Arithmetic Mean Median Mode Geometric Mean and Harmonic Mean Measures of Dispersion Variance Standard Deviation Mean Absolute Deviation Range Mean difference Quartlle Deviation Relative Measures of Dispersion 7.5 Computation of statistical derivatives from frequency distribution 7.5.1 Measures of Central tendency/location Arithmetic Mean Weighted Arithmetic Mean Median Mode Comparison of Arithmetic Mean, Median and Mode Geometric mean Harmonic Mean 7.5.2 Measures of dispersion Variance Standard Deviation Mean Absolute Deviation Quartlle Deviation Glnl's Coefllclent of concentration Lorenz Curve 7.5.3 Measures of Shape (Skewness and Kurtosls) 7.6 Exploratory data analysis 7.6.1 The Stem and Leaf Plot 7.6.2 The Box Plot EXERCISES 8. ELEMENTS OF PROBABILITY THEORY AND PROBABILITY DISTRIBUTIONS 8.1 Introduction • Sample space • Random E^xperlment • An event 8.2 Definition of Probability 8.2.1 Classical definition 8.2.2 Axiomatic definition 8.2.3 Empirical/statistical definition 8.2.4 Determination of weights attached to the sample points in the sample space. 8.3 Probability Laws 8.3.1 Additive Law of Probability 8.3.2 Conditional Probability 8.3.3 Multiplicative Law of Probabilily 8.3.4 Statistical Independence 8.4 Bayes Rule 8.5 Random Variable 8.5.1 Discrete random variable and probability distribution 8.5.2 Continuous random variable and probability distribution. 8.5.3 Expected value and variance 8.6 Important Discrete Probability Distributions 8.6.1 Binomial distribution 8.6.2 Poisson distribution 8.7 Normal distribution 8.7.1 Application of normal distribution 8.7.2 Normal approximation to Binomial distribution 8.7.3 Normal approximation to Poisson distribution 8.8 Independence of random variables 8.9 Expectation of sum and product of two independent random variables 8.10 The weak law of large numbers 8.11 Central limit theorem EXERCISES 9. SAMPLING TECHNIQUES 9.1 What is a survey ? 9.2 Population and sample 9.2.1 When is a census appropriate ? 9.2.2 When is a smaple study appropriate ? 9.2.3 Sampling unit 9.2.4 Sampling frame 9.2.5 Target population and survey population 9.2.6 Purpose of sampling 9.2.7 Prolaabillty (Random) sampling and Non-probability sampling 9.2.8 Steps in sampling 9.2.9 Major steps in a Sample Survey. 9.3 Errors in sample surveys 9.3.1 Sampling Error • Accuracy and Precision 9.3.2 Non-Sampling Errors • Observation Errors • Errors due to Interviewers • Errors due to respondents • Detection of Response Errors • Control and Measurement of Response Errors • Non-response Errors • Magnitude of Non^response and its Control • Errors in Coverage • Processing Errors • Reporting Errors • Systematic Errors Vrs. Variable Errors 9.3.3 Effect of Sample Size on Errors in Sampling 9.3.4 Determination of sample size. 9.4 Types of Probability Sampling Designs • Simple Random Sampling • Stratified Random Sampling • Systematic Sampling • Cluster Sampling • Multistage Sampling • Double Sampling • Multiphase Sampling • Inverse Sampling • Unequal probability sampling 9.5 Types of Non-probability/Non-random sampling • Purposive Sampling • Judgement Sampling • Convenience Sampling • Quota Sampling • Modal Instance Sampling • Expert Sampling • Snowball Sampling 9.6 Basic Sampling Designs 9.6.1 Simple Random Sampling • Method of drawing a simple random sample • Estimation of Population Means and Total • Estimation of sample size • Estimation of proportion 9.6.2. Stratified Sampling • Estimation of Population Mean/Total • Allocation of sample to different strata 9.6.3 Systematic Sampling 9.6.4 Cluster Sampling 9.6.5 Two stage sampling EXERCISES 10. PARAMETRIC STATISTICAL INFERENCE (Problems of Estimation and H3npothesis Testing) 355—411 10.1 Introduction 10.2 Problems of Estimation "• Point estimation • Interval estimation 10.2.1 Estimation of Population Mean • Infinite Population • Finite Population • Normal Population (Known variance) • Normal Population (Unknown variance) • Determination of sample size • Non-normal population 10.2.2 Estimation of difference between two population means 10.2.3 Estimation of variance of a Normal population 10.2.4 Estimation of variance ratio from two normal populations 10.2.5 Estimation of proportion 10.2.6 Estimation of the difference between two proportions (Large samples) 10.2.7 Determination of sample size in estimating proportion 10.3 Hypothesis Testing 10.3.1 Steps for testing of hypothesis 10.3.2 Test of Significance 10.3.3 One-tailed and two-tailed test 10.3.4 Test of mean of a normal population (one sample test) 10.3.5 Test of difference between means of two normal populations (Two sample test) 10.3.6 Test of population proportion 10.3.7 Test of equality of two population proportions 10.3.8 The Chi-square tests of hypothesis • Test of variance • The Goodness of fit test • Test of Independence • Test of Homogeneity 10.3.9 Testing of equality of two population variances 10.3.10 Test of equality of several means of Normal Populations 10.3.11 Test for equality of variances from several populations. EXERCISES 11. NONPARAMETRIC TESTS 412—434 11.1 Introduction 11.2 One sample tests 11.2.1 Sign test 11.2.2 One-sample Wllcoxon signed rank test 11.2.3 Kolmogorov—Smimov test 11.2.4 Run test fTest of randomness) 11.3 Two sample Tests : 11.3.1 Two sample sign test 11.3.2 TWo sample Wllcoxon signed rank test (matched samples) 11.3.3 Median test 11.3.4 The Wllcoxon Rank sum W-test/Mann Whitney U-test 11.3.5 Two sample Kolmogorov—Smimov test. 11.4 K-sampIe tests 11.4.1 The H-test/The Kruskal—Wallls test 11.4.2 K—Samples Median Test. EXERCISES 12. ANALYSIS OF VARIANCE 12.1 Introduction 12.2 Analysis of variance Model 12.3 One way Classlfled Data (One way analysis of variance) 12.4 Two way Classified Data (Two way analysis of variance) 12.5 Analysis of Latin square Design 12.6 Analysis of Factorial Experiments EXERCISES 13. CORRELATION AND REGRESSION ANALYSIS 13.1 Introduction 13.2 Measurement of Linear Correlation 13.2.1 Computation of Correlation Coefficient 13.2.2 Coefficient of determination 13.2.3 Rank Correlation Coefficient 13.2.4 Non-linear Association 13.2.5 Calculation of r from grouped data 13.2.6 Testing the significance of the correlation coefficient 13.3 Linear Regression Lines 13.3.1 Fitting of Regression Line 13.3.2 Relation between regression coefficients and correlation coefficient 13.3.3 Can there be always two regression lines ? 13.3.4 How good Is the Regression ? 13.3.5 Examination and Interpretation of Regression line 13.3.6 Test of hypothesis about the slope (regression coefficient) 13.3.7 Test of hypothesis about the Intercept 13.3.8 Test of significance of regression 13.4 Polynomial Regression 13.5 Time Series Regression 13.6 Exponential Regression 13.7 Non-parametric measures of Association 13.7.1 Categorized data—Association In 2 x 2 Tables 13.7.2 Measures of Association In 2 x 2 tables (Dlchotomous Association) 13.7.3 The Relative Risk Coefllclent (RR) 13.7.4 Measurement of Association (Ordinal data) • Gamma (7) • Kendall's tau-b (xt) • Kendall's tau-c (xj • Somers'd 13.7.5 Measurement of Association In r x c contingency table (chl-square based) • Phi Coefficient • The Contingency Coefficient (Pearson's C) • Tshuprow's T • Cramer' V • Likelihood Ratio 13.7.6 PRE Measures • Lambda (A,) • The Uncertainty coefficient or Thlel's U • Goodman and Kruskal tau (x) 13.7.7 Eta (t|) coefficient 13.7.8 Point—Blseiial Correlation coefficient (vph) 13.7.9 Blserlal Correlation Coefficient (rb) 13.7.10 Rank-Blserlal Coefficient (rrfc) 13.7.11 Rank based measures of association. (cQ Spearman's Rank Correlation coefficient (b) Kendall's tau rank correlation coefficient 13.7.12 The Choice of Measures EXERCISES 14. MULTIPLE REGRESSION ANALYSIS 14.1 Introduction 14.2 The Multiple Regression Model 14.2.1 Fitting of Regression Model 14.2.2 Test of regression coefficient 14.2.3 Test of equality of two regression coefficients 14.2.4 Test of regression function 14.3 Multiple correlation coefficient R^ • Adjusted R^ • Test of Multiple correlation coefficient 14.4 Beta Regression Coefficients 14.5 Coefficient of Partial correlation • Test of significance of observed Partial correlation 14.6 The main questions, which the multiple regression answers : • Selecting the Independent variables (regressors) • Backward Elimination • Forward selection • Stepwlse Regression 14.8 Checking Model Assumptions 14.9 Multlcolllnearlty 14.10 Autocorrelation 14.11 Multiple regression equation In Matrix notation 14.12 Regression with Qualitative Explanatory (Predictor) Variables EXERCISES 15. MULTIVARIATE APPLICATIONS-AN OVERVIEW 15.1 Introduction 15.2 Sampling from a multlvarlate normal population 15.2.1 Test of Hypothesis on mean vector (T^ - TesQ 15.2.2 Test of Hypothesis on equality of two mean vectors 15.2.3 Paired T^ - Test. 15.3 Testing of equality of several multlvarlate population mean vectors 15.3.1 Multlvarlate Analysis of Variance (MANOVA) 15.4 Discriminant Analysis 15.4.1 Classification Rule 15.4.2 Classification for several groups 15.4.3 Optimal Classification 15.5 Cluster Analysis 15.5.1 Distance measures 15.5.2 Steps for cluster Analysis 15.5.3 Clust^erlng Procedures » Hierarchical Clustering Method • Non-hlerarchlcal Clustering Methods 15.6 Principal Component Analysis— 15.6.1 Principal Component Theory 15.6.2 Sample Principal Components 15.6.3 Standardizing the sample principal components 15.7 Factor Analysis 15.7.1 Introduction 15.7.2 Some commonly used terms In factor analysis 15.7.3 The mathematical model for factor structure 15.7.4 Covarlance structure for the orthogonal factor model 15.7.5 Method of estimation 15.7.6 Rotation Methods 15.8 Multidimensional Scaling 15.8.1 Multidimensional scaling procedure 15.8.2 Some Applications of multidimensional scaling 15.8.3 Analysis of multidimensional scaling using SPSS packages 15.9 Conjoint Analysis 15.9.1 Steps in developing a conjoint Analysis 15.9.2 Conducting Conjoint Analysis 15.10 Correspondence Analysis 15.11 LISREL EXERCISES 16. ANALYSIS AND INTERPRETATION OF DATA 16.1 Introduction 16.2 Outline 16.3 Data preparation—an overview 16.3.1 Data Editing 16.3.2 Data Cleaning 16.3.3 Data Coding 16.3.4 Data reduction 16.3.5 Exploring the data 16.3.6 Cross Tabulation 16.3.7 Missing Values 16.4 Descriptive Analysis 16.5 Analytical Statistics and Inference 16.6 Content analysis 16.6.1 Content Analysis—an Introduction 16.6.2 What Is a content ? 16.6.3 Media content and Audience content 16.6.4 Uses of content analysis 16.6.5 Stages of content analysis 16.6.6 Advantages of content analysis 16.6.7 Disadvantages of content analysis 16.7 SWOT Analysis 16.8 Participatory Research. 16.9 Data Analysis by software packages EXERCISES 17. REPORT WRITING AND ORAL PRESENTATION 17.1 What Is a report ? 17.1.1 Objectives 17.1.2 Purpose of Reports 17.2 Types of Reports 17.2.1 Formal and Informal Reports 17.2.2 Types of Formal Reports 17.2.3 Some common Informal Reports 17.2.4 Research Report Formal 17.3 Basic components of a Research Report 17.4 Report Writing Process 17.5 Guidelines for effective Report Writing 17.6 Data analysis and Writing the Report 17.7 What Is a Technical Report ? 17.7.1 Purpose of Technical Report 17.7.2 Audience and Audience analysis 17.7.3 Structure of Report 17.7.4 Presentation 17.7.5 The Report Layout 17.7.6 Language and Style 17.7.7 Planning a Report and Preparation 17.8 Technical Writing 17.9 Instruction Manual 17.10 Technical Proposal 17.11 Oral Prsentatlon 17.11.1 Basic strategies for effective oral presentation 17.11.2 Audlovlsuals 17.11.3 Benefits for using visual aids 17.11.4 How to use visual aids effectively ? 17.12 Precis writing and reporting committee findings 17.12.1 Introduction 17.12.2 Precis writing ER -