Sampling Techniques and Data Analysis

Polytechnic University of the Philippines
College of Economics, Finance and Politics
DEPARTMENT OF BANKING AND FINANCE
Sta. Mesa, Manila

SAMPLING TEACHNIQUES
and
DATA ANALYSIS

Submitted by:
Jayson A. Enabia
Rechelle Ann V. Elon
Lobelyne   Elago
Monica Mae R. Flores
April Mariz Francisco
BBF 4-10n

TABLE OF CONTENTS

Introduction 1

Methods of Collecting Data

          Interview method 1

          Questionnaire Method 2

          Empirical Observation Method 4

          Test Method 5

          Registration Method 5

          Mechanical Devices 5

Sampling Techniques 6

          Random Sampling 6

          Systematic Sampling 7

          Purposive Sampling 7

          Quota Sampling 8

          Convenience Sampling 8

Organization and Presentation of Data 8

Data Analysis 12

Introduction

There is no formula for selecting the best method to be used when generating data. It depends on the researcher’s design of the study, the type of data,the time allotment to complete the study and the researcher’s financial capacity. Data Collection is an important aspect of any type of research study. Inaccurate data collection can impact the results of a study and ultimately lead to invalid results.

METHODS OF COLLECTING DATA
INTERVIEW METHOD

This method of collecting data involves presentation or oral-verbal stimuli and reply in terms of oral-verbal responses. There are different types of interview methods namely:

a. PERSONAL INTERVIEW
The interviewer asks questions generally in a face to face contact to the other person.

b. TELEPHONIC INTERVIEW
It is use when it is not possible to contact the respondent directly

c. STRUCTURED INTERVIEW
It follows a set of questions to be asked to the interviewer.

d. UNSTRUCTURED INTERVIEW
no predetermined questions are asked, in order to remain as open... [continues]

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