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Latest articles
Sustainable Environment
Measuring What 'Sustainable' Actually Means in a Project
Sustainability is used loosely in project design. Measuring it honestly requires a clearer definition upfront.
COSAS Vanguard Editorial · Wed Mar 11 2026
Nigerian Economy
Reading Nigeria's Inflation Numbers Carefully
Headline inflation figures hide a lot of variation. Understanding the components matters more than the single number.
COSAS Vanguard Editorial · Tue Mar 03 2026
COSAS News
Founding the COSAS Research Academy
An early look at why the Academy exists and what its first courses are being built around.
COSAS Vanguard Editorial · Tue Feb 24 2026
AI & Data
How AI Can Assist Research Without Replacing Research Judgment
AI tools can speed up parts of a research workflow. They cannot take responsibility for what the findings mean.
COSAS Vanguard Editorial · Wed Feb 18 2026
M&E
What Monitoring and Evaluation Actually Measures
M&E is often reduced to reporting. Its real job is telling an organization whether something is working.
COSAS Vanguard Editorial · Tue Feb 10 2026
Statistics
Descriptive Statistics and the Decisions They Help Us Make
Before any modelling happens, descriptive statistics tell a straightforward story about what the data actually shows.
COSAS Vanguard Editorial · Mon Feb 02 2026
Survey Design
What Makes Survey Data Reliable?
Reliability is decided before analysis begins, in how a survey is designed and fielded, not after the data arrives.
COSAS Vanguard Editorial · Thu Jan 22 2026
Research Methods
Why Good Research Starts With Better Questions
A weak research question produces weak data, no matter how well the fieldwork that follows is executed.
COSAS Vanguard Editorial · Thu Jan 15 2026