Quantitative Data Analysis

DATA TYPES

QUANTITATIVE: NUMERICAL OBSERVATIONS RESULTING FROM MEASUREMENT (e.g. Weight, Height, Age, Salaries, Stock Market Prices, Number of Products)

QUALITATIVE: CATEGORIC OBSERVATIONS (NON-NUMERICAL) RESULTING FROM A SURVEY QUESTION (e.g. Gender (Male, Female), Marital Status (Married, Single), Type of Housing (Detached House, Apartment Building), Educational Level (First Degree, Second Degree, Third Degree)

COMMENTS ON QUALITATIVE DATA: THE ONLY PROCESSING THAT CAN BE WHAT IS MEASURED IS THE PROPORTION OR PERCENTAGE IN EACH CATEGORY.

PRIMARY SOURCES OF STATISTICAL INFORMATION

PRIMARY DATA: COMES FROM A PRIMARY SOURCE -> Collected under the methodology and responsibility of the researcher.

HOW? THROUGH QUESTIONNAIRES

SECONDARY SOURCES OF STATISTICAL INFORMATION

SECONDARY DATA: COMES FROM A SECONDARY SOURCE -> Collected by statistical information services (e.g. European Central Bank) under the methodology and responsibility of the researcher.

RESEARCH TYPES

FIELD RESEARCH: Technique of collecting primary data.

DESK RESEARCH: Processing and analysis of primary or secondary statistical data.