statistical tests

• 9 statistical tests

  • chi squared
  • sign test
  • chi squared (assosiation)
  • mann whitney
  • wilcoxon
  • spearmans rho
  • unrelated t test
  • related t test
  • pearsons test
• whats the acronym to remember all the statistical tests

  carrots should come mashed with swede under roast potatoes
• sign test calculation

  • calculate difference in scores
  • s value is the smaller number
  • n is the number of participants
  • check if the hypothesis is directional (one tailed) or non directional then check the table
  • if S value is greater than the critical value it is not significant
  • if results are significant accept experimental hypothesis
  • if they're not significant accept null hypothesis