Measurement Scales – Nominal, Ordinal, Interval and Ratio
Measurement scales are classified popularly under four categories Nominal Ordinal Interval Ratio Let’s discuss in brief about these measurement scales
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Research Methodology
Methods of Collecting Primary Data
Primary data refers to original data that has been collected from the original source first hand. Data collected this way
Read moreDirect Personal Interviews – Methods of Primary Data Collection
A face to face contact is made with the informants (persons from whom the information is to be obtained) under
Read moreInformation from Correspondents – Methods of Primary Data Collection
The investigator appoints local agents or correspondents in different places to collect information under this method. These correspondents collect and
Read moreMailed Questionnaire Method – Methods of Primary Data Collection
Under this method, a list of questions pertaining to the survey which is known as ‘Questionnaire’ is prepared and sent
Read moreSchedules Sent Through Enumerators – Methods of Primary Data Collection
One of the methods for data collection is sending schedules through the enumerators or interviewers. The enumerators contact the informants,
Read moreHow to Calculate Descriptive statistics using R
In this post, I will explain how to calculate basic descriptive statistics using R. The following R scripts helps to
Read moreWhat is meant by Sampling Error? How does it happen?
In a sample survey, since only a small portion of the population is studied its results are bound to differ
Read moreWhat is Hypothesis? What are its types and characteristics?
“Hypothesis may be defined as a proposition or a set of propositions set forth as an explanation for the occurrence
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