BASIC INTRODUCTION TO
STATA USE
Introduction:
Presented by
Margaret Mburu
INTRODUCTION
Stata is a powerful statistical
package with smart datamanagement facilities, a wide
array of up-to-date statisti
DATA ANALYSIS TECHNIQUES
Inferential:
Presented by
Margaret Mburu
Definition
Data analysis is a body of methods
that help to describe facts, detect
patterns, develop explanations, and
test hypotheses
BASIC INTRODUCTION TO
STATA USE
Data Management
DAY2 13th June 2013
PRESENTED BY
MARGARET MBURU
NOTE
Stata is case sensitive!
All the commands in Stata can only be
recognized in lowercase
File names,
DESCRIPTIVE STATISTICS IN
STATA
Descriptives:
PRESENTED BY
MARGARET MBURU
Exploring the data
How many males/females?
What is the average age?
How many
undergraduate/graduates students?
What is the ave
University of Sheffield
School of Mathematics & and Statistics
Measure and Probability
MAS350/451/6352
Spring 2015
Chapter 1
Measure Spaces and Measure
1.1
What is Measure?
Measure theory is the abstr
Data Entry
SPSS stands for Statistical Package for the Social
Sciences or Statistical Product and Service
Solutions is a program that is used for statistical
analysis.
SPSS is a statistical package f
SPSS
1
TRAINER
BONVENTURE MACHARIA
PART TWO
Prepared by Bonventure Macharia
2/18/2014
Lesson Objectives
2
By the end of the lesson you should:
1. to identify types of data analysis
2. To identify type
SPSS
1
TRAINER
BONVENTURE MACHARIA
PART ONE
Prepared by Bonventure Macharia
2/13/2014
Lesson Objectives
2
By the end of the lesson you should:
1. understand scale of measurement
2. be able to create a
SPSS
Comparing Groups
Introduction
There techniques to test for significant differences
between groups.
The following techniques will be discussed as far as this
training is concern
1.
2.
3.
4.
2
One
Correlation Analysis
Correlation analysis is used to describe the strength
and direction of the linear relationship between two
variables.
SPSS will calculate two types of correlation for you,
namel
Data Manipulation
Data manipulation include the following; Sort Cases
Select Cases
Split File
Weight Cases
Transformation
Replacing Missing Values
7/3/2014
2
Click Data and then click Sort Cases
Statistical Graphs
SPSS provides a number of different types of
graphs (referred to by SPSS as charts).
Well cover the basic procedures to obtain the
following graphs:
a)
b)
c)
d)
e)
f)
Pie Charts
his
Cross Tabulation and Measure of Association
This procedure is used to generate contingency tables
from qualitative (Categorical) data.
To carry out this procedure follow these instructions:
1.
2.
3.
4
SPSS
One-Way ANOVA
Terminologies
F Ratio - This is a ratio calculated whic represents the variance
between the groups, divided by the variance within the groups. A
large F ratio indicates that there i
Introduction to Statistical Analysis
All research projects, whether analyzing a survey, doing
program evaluations, assessing marketing campaigns, doing
pharmaceutical research, etc., can be broken dow
SPSS
Trainer
Bonventure Macharia
Part Two
1
Prepared by Bonventure Macharia
2/20/2014
Measures of Association
Measures of Association calculate the strength, and for
ordinal variables the direction of
Designing Questionnaire
Questionnaires can be delivered to the
respondent by various means including post, email attachments or via publishing on a web site
for interactive completion.
Design of the q
Introduction to
SAS
1
Course outline
1.
2.
3.
4.
5.
6.
7.
8.
Gentle introduction
Reading and viewing data
Data cleaning
Data manipulation
Combining datasets
Summarizing data and visualizing data
Good
Statistical Tests
Statistical tests are inference tools which are
able to tell us the probability with which results
obtained on the sample can be extended to the
population.
Every statistical test h
SPSS
Trainer
Bonventure Macharia
Part Three
1
Prepared by Bonventure Macharia
10/2/17
Correlation
Correlation analysis is used to describe the
strength and direction of the linear
relationship between
Data Import to SPSS
The data format mostly imported to SPSS
include
Excel
CSV
Text
STATA
SAS
In this course we will import the Excel, CSV
and Text files.
Select File, Open then Data
Choose Excel (*.xl
SPSS
Multiple Regression
WHATS THE REGRESSION MODEL?
7/24/2014
The model says that Y i.e. dependent Variable
(DV) is a linear function of the predictors (Xs) i.e.
Independent Variables (IVs), plus sta
SPSS
Trainer
Bonventure Macharia
Part Four(T-Test)
1
Prepared by Bonventure Macharia
2/27/2014
Mostly About Statistics
Standard Error (S.E): This the standard deviation of
the sample mean
. =
Where =
Hypothesis Testing
Objectives:
Students should be able to identify the null and alternative (research)
hypotheses in a statistical test
Students should know the difference between one-and two-directio
Handling missing data
There different methods of dealing with
missing values in the data file
1. Replacing missing values
2. Entering missing values
6/24/2014
Handling Missing Data
2
If you have some
Assessing Normality
Many of the statistical techniques presented
in this training assume that the distribution of
scores on the dependent variable is normal.
Normal is used to describe a symmetrical,
Descriptive Statistics
7/7/2014
Prepared by: Bonventure Mwangi
1
Descriptive statistics have a number of uses.
These include:
to describe the characteristics of your sample in the
your report;
ii. to
SPSS
One-Way Repeated Measures ANOVA
Introduction
This the within subjects correlated samples
ANOVA also known as one-way repeated
measures ANOVA
A One-Way within subjects design involves
repeated mea