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...

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