Data which have already been collected by someone else and which have already been passed through the statistical process. Examples include books, journals, government reports, and historical records. Researchers must check secondary data for reliability, suitability, and adequacy. Slide 9: Processing and Analysis of Data

Decide the geographical or social unit (e.g., state, district, family, individual).

Desire to get a research degree along with its consequential benefits.

requires a structured flow that mirrors his systematic approach. Kothari defines research as an "original contribution to the existing stock of knowledge" and emphasizes a rigorous, rule-based process.

The true test of a Kothari PPT is not in studying it, but in using it to defend your research. Here is how the slides directly protect you during a viva voce (oral exam):

Kothari is famous for demystifying stats. The final slides of a quality PPT should explain:

Define the total number of items to be studied (Finite or Infinite).

Kothari dedicates significant attention to —the conceptual structure within which research is conducted. He distinguishes between:

Determine the optimum number of items to ensure reliability and efficiency. Sampling Methods Matrix Probability Sampling (Random) Non-Probability Sampling (Non-Random) Simple Random Sampling Deliberate / Purposive Sampling Systematic Sampling Convenience Sampling Stratified Random Sampling Judgment Sampling Cluster / Area Sampling Quota Sampling 5. Methods of Data Collection

The actual techniques by which the procedures specified in the sampling, statistical, and observational designs are carried out. 5. Data Collection and Sampling Methods

): Rejecting the null hypothesis when it is true. (Level of significance). Accepting the null hypothesis when it is false. Important Parametric & Non-Parametric Tests Z-Test: Used for comparing means with large sample sizes ( ) or known population variance. t-Test: Used for small sample sizes ( ) when population variance is unknown. Chi-Square ( χ2chi squared

The research design is the conceptual structure within which research is conducted. Kothari outlines four main types of research designs:

What is the target (e.g., Undergraduate, Masters, PhD, Faculty)? Share public link