Chapter 1 Research Methods Introduction

Chapter 1 Research Methods

Introduction

INTRODUCTION 

Research Methods

Statistic

OR 

Statistics

Research Methods

Purpose of Research  How do you know something to be true? • • • • •

I saw it happen My Mom told me My professor said so I saw it on the internet I read a research article about it

Research in a Nutshell  Issues      

How to measure Level of measurement Subject selection Duration of treatment Etc. Etc. Etc. The of the procedure

The Research Hypothesis  Dependent variable  Independent variable  Sources     

Wild guess Theory Previous research Experience Logic

Hypotheses Research Hypothesis Null Hypothesis Omitted details One and two tailed tests Level of confidence Type of statistical procedure Assignment of subjects to groups Etc.

Inferential Nature of Statistics  More issues      

Defining the population Method of selecting subjects Number of subjects Eliminating confounding variables Control groups Etc.