Sampling Methods & Survey

7/29/2019 Sampling Methods & Survey

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Random Sampling

Each member of the population has an equal

chance of being selected.

Systematic Sampling

The sample size of the population is estimated and

from this, a list of the population members isobtained and from the list, the nth member is

selected.

Types of Sampling Methods


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Stratified Sampling

The stratum, a segment of the population who share a

common characteristic, is identified by the researcher.

This method is used when members of one stratum in a

population are fewer compared to other stratums. Examplesof stratums are teachers and students, clerical personnel,

males and females.

Convenience Sampling The sample is selected, as the term applies, by convenience.

Because it requires less time, this method is best used in

preliminary research.

Types of Sampling Methods


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Recitation: What do you know about a

Research Questionnaire?

The instrument you distribute to members of the

population you survey.

The series of questions it contains should elicit theinformation that will help you answer your research

questions.

Designing a Questionnaire


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Before you list the questions to include in thequestionnaire, determine first what your PURPOSE is

for doing the survey.

The survey can be an effective research tool if the

purpose for doing it is CLOSELY ALIGNED with the

overall RESEARCH OBJECTIVES.

It would be such a waste of resources if the survey

results will not have any significant contribution to your

study.



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MINIMUM REQUIRED NUMBER OF

COMPLETED SURVEY QUESTIONNAIRES

FOR YOUR RESEARCH


100 respondents for group of 3 or more

50 respondents for pair work

30 respondents for individuals


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NETWORK GAMING ADDICTION AND ITS EFFECTS ONACADEMIC PERFORMANCE


In the following example, determine whether the

questions or details asked are appropriate in the survey.

RESPONDENT INFORMATION

Student Number

Course

Year

Age

GPA last term

Favorite Hollywood actor


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HOW LONG have you been playing DOTA?

[ ] less than 3 months [ ] 3-6 months

[ ] 7-9 months

[ ] 10-12 months [ ] more than a year

[ ] more than 10 years


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WHERE do you usually play DOTA?

[ ] at computer shops near the school

[ ] at computer shops near my house [ ] at home

How OFTEN do you play in a WEEK?

[ ] 1-2 days [ ] 3-4 days

[ ] 5-7 days

[ ] all the days of my life


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How many HOURS do you play in a day?

[ ] 1-2 hours

[ ] 3-4 hours

[ ] 5-7 hours

[ ] 24-7

How much is your ALLOWANCE per week? __________

How much do you SPEND playing games per week? __________


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Why do you play DOTA? Check all applicable answers.

[ ] for fun / leisure / relaxation / past-time activity

[ ] It increases my alertness. [ ] because everybody does it

[ ] peer pressure

[ ] I prefer to play than to write my research paper.

[ ] I like the 3D computer games.

[ ] Because my friends play

[ ] Acceptance or sense of belongingness in a crowd

[ ] Fantasy fulfillment and role playing

[ ] Others, please specify. ____________________


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How fulfilled or satisfied are you after playing a game?

[ ] satisfied

[ ] NOT satisfied

Do you have any dreams of developing your own network game in

the future?

Do you think network gaming should be banned near schools?

Have there been instances when you wanted to quit playing but it

seemed you couldnt stop?


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ACADEMIC PERFORMANCE

Do you attend classes REGULARLY? [ ] Always

[ ] Often

[ ] Seldom

[ ] Never

If and when you do, do you attend classes promptly or do

you come to class late?


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Have you already incurred more than 6 absences in any of your

subjects?

[ ] Yes

[ ] No

If yes, why?

[ ] doesnt like the subject

[ ] not comfortable with the time schedule (too early or too late) [ ] accumulated lates

[ ] cut classes to do homeworks

[ ] cut classes to play DOTA

[ ] Others, please specify. _____________________


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Do you take down NOTES in class?

[ ] Always

[ ] Often [ ] Seldom

[ ] Never

If you do take down notes, do you REVIEW your notes at home?

[ ] Always

[ ] Often

[ ] Seldom

[ ] Never


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How much TIME do you allot for STUDYING in a day?

[ ] 1-2 hours

[ ] 3-4 hours

[ ] 5-7 hours

[ ] more than 7 hours

[ ] I study even when Im asleep

[ ] All the days of my life

If none, why? ____________________


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Do you SELF-STUDY by reading books and other references

suggested for the course?

[ ] Always [ ] Often

[ ] Seldom

[ ] Never

[ ] Never, ever I swear

Do you submit assignments, quizzes, and projects ON TIME?

[ ] Never

[ ] Never, ever I swear


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Are you able to obtain a PASSING GRADE of 75% in your major exams?

[ ] Always

[ ] Thank God, often [ ] Seldom

[ ] Unfortunately, never

Do you have a weekly TIME MANAGEMENT SCHEDULE which you

follow strictly? __________

In case you are NOT a DOTA gamer, do you think it will drastically

improve your academic performance? ___________


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TIPS ON WRITING A RESEARCH QUESTIONNAIRE

Provide clear instructions on how to complete the

questionnaire.

Start with interesting questions. The respondents will be encouraged and more likely to

complete the questionnaire if it is deserving of their

attention.

Ask clear questions.

Use simple words in asking questions so they can easily be

understood.

How to Write a Research Questionnaire


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Ask close-ended questions.

These questions give respondents limited response options.

They can be bipolar, multiple choice, rating scale or fill-in-the-blank types.

Because close ended questions provide for specific responses, they areeasier to tabulate.

Ask only one question at a time.

Questions that ask for more than one piece of information can be

confusing. For example, if the question is: in choosing a laundry detergent, do you

prefer one that is cheap and easily available?

It will be hard to decide whether the answer refers to cheap or easily

available or both.




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Group questions in a logical order.

If your questions jump form one topic to another, it may confuse

the respondent.

Make sure the previous question is reasonably linked to the next.

Ask the important questions in the first half of the

questionnaire.

There is no assurance that respondents will answer all the

questions completely.

Even if you get back a partially filled questionnaire, if you put in

the important questions first, there is a better chance that these

would be answered.




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Keep your questionnaire short.

Questionnaires that take too long to

answer may be less likely to becompleted.

Provide a cover letter to accompany

to your questionnaire.




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An Example of a cover letter

What a Cover Letter is all About

March 11, 2010

We are currently conducting a study on Network Gaming

Addiction and its Effects on Academic Performance incompletion of the course ENGL 303. We chose this subject

matter to validate the general perception that too much time

spent on playing the local network game Defense of the

Ancients (DOTA) causes the absences and failing grades of

the students of FEU-East Asia College. Although networkgaming is said to develop strategic mental ability, it seemingly

affects the academic performance of students in a negative

way.


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continuation.

Please answer the following survey questions honestly and

completely. The truthfulness of your answers in this survey ishighly appreciated and will materially affect the accuracy of

this research. With your participation, we hope to better

understand the relationship between addiction to network

gaming and academic performance. We also hope that theresults of this survey will be useful not only for the purpose of

this research paper, but also for other students engaging in

similar researches.


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continuation.

Rest assured that the information we have gathered from this

survey will be handled with complete confidentiality.

Sincerely yours,

John Reyes and Edison Santos

The Researchers


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March 11, 2010

We are currently conducting a study on Network Gaming Addiction and its Effects on Academic

Performance in completion of the course ENGL 303. We chose this subject matter to validate the general

perception that too much time spent on playing the local network game Defense of the Ancients (DOTA)

causes the absences and failing grades of the students of FEU-East Asia College. Although network gamin

is said to develop strategic mental ability, it seemingly affects the academic performance of students in a

negative way.

Please answer the following survey questions honestly and completely. The truthfulness of your answers in

this survey is highly appreciated and will materially affect the accuracy of this research. With your

participation, we hope to better understand the relationship between addiction to network gaming and

academic performance. We also hope that the results of this survey will be useful not only for the purpose

of this research paper, but also for other students engaging in similar researches.

Rest assured that the information we have gathered from this survey will be handled with complete

confidentiality.

Sincerely yours,

John Reyes and Edison Santos

The Researchers


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So now, lets review. Why should youwrite a cover letter?

The cover letter is an indispensable part of the

questionnaire where you can provide the

respondent the motivation to complete it.

The cover letter is where you can persuade the

respondent to take part in the survey.



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WHAT DO YOU INCLUDE IN YOUR COVER LETTER?

What is the purpose of the study?

Whats in it for them?

Include an incentive showing how their

participation will do them good.

If you think they will be interested in the results,

offer to give a summary when the study is done.



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WHAT DO YOU INCLUDE IN YOUR COVER LETTER?

What will be done with the results?

What is your confidentiality policy?

Who can they contact if they have questions?

Close by expressing your thanks for their

participation.



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Lets review the Parts of a Research SurveyQuestionnaire

What do you know about the following?

Cover Letter

Respondent Information

(Data to be extracted from the respondent)



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Presentation of Survey Questions in Class

Discuss with the class each of the questions you

have included in your survey questionnaire.

Be ready to justify why you have included such

questions in your survey.

Tell the class what you can still improve in your

survey questionnaire.



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Next Session:Presentation of a REVISED Survey

Questionnaire

If needed, REVISE the survey questionnaire you submitted today.

Choose 4 other students to compose one group with 5 members

each. Each member shall bring a soft copy of the survey

questionnaire next session.

During the class, we will have draw lots to determine whose

survey form will be projected for the purpose of class critiquing.

The grade of one member shall be the grade for the group.


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