Quantitative Research. In this lesson, we will deepen our skills in quantitative research methods...

Quantitative Research



In this lesson, we will deepen our

skills in quantitative research

methods to:

• Explain how survey tools can be

used to evaluate your

campaign’s impact.

• Describe the value of sample size

for your quantitative research

and measurement of impact.

• Define representative sampling

and identify the key factors in

bias.


• Review of Research Questions and

Research & Planning Timeline (15 Mins)

• Discovering Key Concepts Representative Sampling, Sampling

Size and Design (1.5H) Reading and Group Workshop (1.5H)

• Revisiting Your Research Plan and

Rubrics (1.5H)

QUANTITATIVE RESEARCH SESSION OUTLINE


Research Planning Process

Conceptualization(1)

Research Design

(2)

Data Collection(3)

Data Analysis(4)


• Scope: • target population, or

the group of people

that you want to

study with the survey.

• Comparison Site

Conceptualization

(1)


SURVEY SAMPLING RANDOM SAMPLING

Define target population Choose a sample frame Stratified sampling

Research Design

(2)


What is Statistics?

A method for collection

and interpreting

quantitative data• Collection: Data is

collected the right way

• Analyzing:

Mathematical tools or

models for

interpreting data


Statistics and your Survey: Sampling

• Usually impossible to interview everyone in

your area (at most sites) so you take a

sample

• A sample is a subset of your TA that is used

to represent the whole group.

• If they represent the WHOLE group then….

— You want to select a representative

sample


Why is ‘representative’ so Important?


What is representative?


What is the full spectrum?


The Normal Distribution


Who represents your Target Audience?


Designing your Survey: Representative Sampling

*Representative: The survey is designed

such that the frequencies (or percent types

of people) sample reflect the true

frequencies (or percent types) in the

population

• Age range

• Gender

• Employment

• Socio-economic status


Representative sample step: Determine your sample scope

Where do your target

audience or audiences

live?


Sampling and Campaign Decisions

How many samples do I need to collect?


Key Concepts

Confidence

Interval: • reflects the

range of

numbers that

reflect the

‘true value”

0 0.5 1 1.5 2 2.5 3 3.5 4 4.50.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

Group1Group2Group3Mean


• Confidence Level: tells you how sure you can be you that your

sample is generally representative of your

population.

— NOTE: Don’t worry about this – just

know that we use a 95%

confidence level and it

tells you how confident you are that

your estimate (of knowledge e.g.) is

accurate


Select your Sampling Strategy

• Design a truly random sample

• How many samples do I need to collect?

• Sample Size Calculator: http://www.surveysystem.com/sscalc.htm

— Population Size: ?

— Confidence interval: 5% (Rare standard)

— Confidence level: 95% (Rare standard)

http://www.surveysystem.com/sscalc.htm



How many samples do you need here?


Where can you go to collect your data?

• Door to Door

• Any Other Defined Place

• Pre-Determined Location

• Central Location

Data Collection

(3)


Sample Size

Factors to consider

• Determining your Sample Size

• Confidence Intervals

• Population Size

• Sample Size Estimator


Tips for Data Management

Here are some key tips for staying on top of

quantitative data:

1. Create a plan

2. Create a data input process

3. Stay Organized

4. Write legibly, neatly, clearly

5. Document the choices

6. Get help


Back up your Data!


ADDING TO MY RESEARCH PLAN

5

Quantitative Data Collection


(Week 3, Day1)22-Sep

5.1 KAP Quantitative Survey



5.2 Sampling Design




..\..\Research Plan Template_Phils2_10September2012.docx

SAMPLE CALCULATOR

www.surveysystem.com/sscalc.htm



Review Serena Research Plan

Quantitative Data Collection ( page 6) – review the gold standard and make your own section in your research plan


In this lesson, we will

deepen our skills in

quantitative research

methods to:

• Explain how survey tools can be

used to evaluate your campaign’s

impact.

• Describe the value of sample size

for your quantitative research and

measurement of impact.

• Define representative sampling and

identify the key factors in bias.

Quantitative Research. In this lesson, we will deepen our skills in quantitative research methods...

Documents

Transcript of Quantitative Research. In this lesson, we will deepen our skills in quantitative research methods...