ORGANIZATONAL ASPECTS

OF SAMPLING SURVEY

PRESENTED BY :

• NABIN JAMKATEL

• DEEPAK BHUSAL

• TIRTHA NARAYAN CHAUDHARY

• RAKESH CHHETRI

• SAROJ K.C

SAMPLE SURVEY

• ”SURVEY” REFER TO MANY DIFFERENT TYPES OR TECHNIQUES OF OBSERVATION

• PROCESS OF SELECTING A SAMPLE OF ELEMENTS FROM A TARGET POPULATION

• WIDELY USED AS A COST EFFECTIVE INSTRUMENT OF DATA COLLECTION.

SOME ASPECTS REQUIRING ATTENTION AT THE

PLANNING STAGE ARE:

• OBJECTIVES OF THE SURVEY

• METHOD OF DATA COLLECTION

• QUESTIONNAIRE DEVELOPMENT

• CHOICE OF SAMPLING DESIGN

• PROCESSING OF DATA, AND

• PREPARATION OF REPORT

OBJECTIVES OF THE SURVEY

• FOR SURVEY SAMPLING FORMULATING THE OBJECTIVES OF THE SURVEY IS NECESSARY.

• THE SURVEY STATISTICIAN’S FORMULATION OF OBJECTIVES SHOULD INCLUDE THE FOLLOWING:

1. A CLEAR STATEMENT OF THE DESIRED INFORMATION IN STATISTICAL TERMS

2. THE FORM IN WHICH THE DATA SHOULD BE TABULATED

3. THE ACCURACY AIMED AT IN THE FINAL RESULTS

4. COST OF SURVEY

METHOD OF DATA COLLECTION

• VARIETIES OF METHODS USED TO COLLECT INFORMATION

• THE METHODS USUALLY ADOPTED FOR COLLECTING PRIMARY DATA ARE:

1. DIRECT PERSONAL INTERVIEW,

2. QUESTIONNAIRES SENT THROUGH MAIL,

3. TELEPHONE INTERVIEW.

METHODS OF COLLECTING SAMPLES

1. PERSONAL INTERVIEW

• WIDELY USED IN SOCIAL AND ECONOMIC SURVEYS

• THE INVESTIGATOR PERSONALLY CONTACTS THE RESPONDENTS AND CAN OBTAIN THE REQUIRED DATA

FAIRLY ACCURATELY

• THE RESPONSE RATE IS USUALLY GOOD AND THE INFORMATION IS MORE RELIABLE AND CORRECT

• HOWEVER, MORE EXPENSES AND TIME IS REQUIRED TO CONTACT THE RESPONDENTS

2. QUESTIONNAIRES SENT THROUGH MAIL

• ALSO KNOWN AS MAIL INQUIRY

• THE INVESTIGATOR PREPARES A QUESTIONNAIRE AND SENDS IT BY MAIL TO THE RESPONDENTS

• THE METHOD IS SUITABLE WHERE RESPONDENTS ARE SPREAD OVER A WIDE AREA.

• THOUGH THE METHOD IS LESS EXPENSIVE, NORMALLY IT HAS A POOR RESPONSE RATE

3. TELEPHONE INTERVIEW.

• THE POPULATION UNDER THE SURVEY CAN BE APPROACHED BY PHONE

• SURVEYS ON DISTANT PLACES CAN BE DONE

QUESTIONNAIRE DEVELOPMENT

• THE INFORMANTS OR RESPONDENTS ARE ASKED PRE-SPECIFIED QUESTIONS

• THEIR REPLIES TO THESE QUESTIONS ARE RECORDED BY THEMSELVES OR BY INVESTIGATORS

• IN THIS CASE, THE INVESTIGATOR IS NOT SUPPOSED TO INFLUENCE THE RESPONDENTS

• IN THE SCHEDULE APPROACH, THE EXACT FORM OF THE QUESTIONS TO BE ASKED ARE NOT

GIVEN TO THE RESPONDENTS

CHOICE OF SAMPLING DESIGN

• ONE OF THE MOST IMPORTANT STEP IN THE PROCESS OF PLANNING SAMPLE SURVEYS

• PRINCIPLE GENERALLY ADOPTED IN THE CHOICE OF A DESIGN IS EITHER REDUCTION OF

OVERALL COST OR REDUCTION OF MARGIN OF ERROR OF THE ESTIMATES

• CHOICE OF SAMPLE UNITS, METHOD OF SELECTING SAMPLE AND DETERMINATION OF SAMPLE

SIZE ARE SOME OF THE IMPORTANT ASPECTS IN THE CHOICE OF PROPER SAMPLE DESIGN.

PROCESSING OF DATA

• FIRST TASK WHICH IS OF PRIMARY IMPORTANCE IS THE REDUCTION OF COLLECTED DATA INTO

MEANINGFUL TABLES

• TABLES SHOULD BE PRESENTED ALONG WITH THE BACKGROUND INFORMATION SUCH AS THE

OBJECTIVE(S) OF THE SURVEY, THE SAMPLING DESIGN ADOPTED, METHOD USED FOR DATA

COLLECTION AND TABULATION

• SUBJECT ANALYSIS TO BE TAKEN UP AFTER PREPARING SUMMARY TABLES, SHOULD INCLUDE

CROSS TABULATION OF DATA BY THE MEANINGFUL, GEOGRAPHICAL, ECONOMY,

DEMOGRAPHIC OR OTHER BREAKDOWNS TO STUDY THEIR RELATIONSHIP AND TRENDS AMONG

VARIOUS CHARACTERISTICS

PREPARATION OF REPORT

SOME POINTS WHICH SERVE AS GUIDELINES IN THE PREPARATION OF SAMPLE

SURVEY REPORTS ARE GIVEN BELOW:

• INTRODUCTION & REVIEW OF LITERATURE

• OBJECTIVE(S)

• SCOPE

• SUBJECT COVERAGE

• METHOD OF DATA COLLECTION

• SAMPLING DESIGN AND ESTIMATION PROCEDURE

• TABULATION PROCEDURE PRESENTATION OF RESULTS

THANK YOU