Sample designs may be classified into different categories based on two factors, namely, the representation basis and the element selection technique. Under the representation basis, the sample may be classified as Non-probability sampling Probability sampling While probability sampling is based Read More …
Category: Research Methodology
What is Hypothesis? What are its types and characteristics?
Definition “Hypothesis may be defined as a proposition or a set of propositions set forth as an explanation for the occurrence of some specified group of phenomena either asserted merely as a provisional conjecture to guide some investigation in the Read More …
What 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 from the census results and thus, have a certain amount of error. In statistics, the word ‘error’ is used to Read More …
Nine tips for preparation of a good Questionnaire
Data collection with help of questionnaire is one of the commonly used methods of collecting primary data. It is a reasonably fair tool for gathering data from large, diverse, varied and scattered social groups. A questionnaire should be designed or drafted with utmost Read More …
Why do we need to do Sampling?
Sampling is the process of obtaining information about an entire population by examining only a part of it when it is impossible to study the whole population. The sample should be a true representative of population characteristics without any bias. So Read More …
Different types of Data Analysis
Analysis involves estimating the values of unknown parameters of the population and testing hypothesis for drawing inferences. Types of Analysis a. Qualitative analysis b. Content analysis c. Quantitative analysis d. Descriptive analysis e. Bivariate analysis f. Sequential analysis g. Casual Read More …
Observation – Methods Of Primary Data Collection
Observation is one way to collect primary data. It is a purposeful, systematic and selective way of watching and listening to an interaction or phenomenon as it takes place. There are many situations in which observation is the most appropriate Read More …