Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

Sampling Strategies and Measurements - "Where and How Many?"

Here we provide the details of why you might choose a particular sampling strategy and a particular measurement strategy. Sampling Strategies and Measurements - "Where and How Many?" According to Adds et al. (1999)[1] the purpose of sampling is to obtain a series of independent estimates of the variables you are measuring. If you want to study Zug Lake and the algae population, you cannot possible measure the whole...

Help