Introduction to statistics--1. The confidence interval.

Introduction to statistics--1. The confidence interval.

Statistics for dental researchers; part 1: Introduction

Learning statistics is a necessity for dental researchers. Due to daily dental science expansion, dental researchers have to study new papers in recent dental journals to remain up to date. On the other hand, knowing principles of statistics helps better understanding of the articles. Some authors revealed that knowledge of dentists about basic topics of statistics was poor. Therefore, in this ...

Confidence Interval Distributions 1

Methodological recommendations strongly emphasize the routine reporting of effect sizes and associated confidence intervals to express the uncertainty around the primary outcomes. Confidence intervals (CI) for unstandardized effects are easy to construct; However, CI’s for standardized measures such as the standardized mean difference (i.e., Cohen’s d), the Pearson product-moment correlation, p...

1 Introduction to statistics and simple descriptive statistics

This chapter discusses several topics, from why statistics is important in anthropological research to statistical notation. The first section (statistics and scientific enquiry) defines basic scientific terms and explains the role of statistics in anthropological research. The second section (basic definitions) reviews the vocabulary we need for the rest of the book. The third section (statist...

An introduction to everyday statistics--1.

Descriptive statistics are used to summarise numerical information so that it is in a more manageable form. There are a variety of ways of carrying this out depending upon what type of data we are dealing with. There is also a choice when presenting data. Graphical and tabular formats are possible but each have strengths and weaknesses. Selection therefore needs to take these into account along...