Work out how many participants your thesis needs, using Cochran or Yamane for surveys and power analysis for experiments and group comparisons.
Sample Size Calculator for Thesis
Free sample size calculator for thesis and survey research. Cochran's formula with finite population correction and Yamane's formula, with working and APA text.
Power Analysis Calculator
Free a priori power analysis calculator for the independent t test. Enter effect size, alpha and power to get the sample size per group, like G*Power.
Which one do I need?
- Sample Size Calculator for Thesis: How many respondents does your survey need? This calculator applies the two formulas most often cited in theses and dissertations, Cochran’s formula (with finite population correction) and Taro Yamane’s formula, shows the full working, and gives you a sentence you can put straight into your methodology chapter..
- Power Analysis Calculator: An a priori power analysis tells you how many participants you need before you collect data, so that your study has a good chance of detecting a real effect.