TYPES OF TESTS

• 1. Nominal Data
  2. Test of difference
  3. Related

  Sign Test
• How to calculate 'S' in the sign test 


  1: add column 1

  2: add column 2

  S is the smallest value of the 2 columns
• How to calculate 'N' in the sign test 


  Use only the number of PPT's who have a difference in their scores.
• 1. Nominal data
  2. Test of difference
  3. Unrelated

  Chi Squared test
• Chi Squared test key terminology:

  • observed frequency = the results you collect in each condition
  • expected frequency = the results you expect to see if there was no association between the variables
• How to calculate DF in the Chi-squared test

  (row - 1) x (column - 1)
• 1. Ordinal Data
  2. Test of difference
  3. Unrelated

  Mann Whitney Test
• What is Na/Nb or N1/N2 in the Mann Whitney test

  Na = number of PPT's in group A

  Nb = number of PPT's in group B
• 1. Ordinal Data
  2. Test of difference
  3. Related

  Wilcoxon Test
• How to calculate 'N' in the Wilcoxon test

  N = number of differences

  • do the same as the sign test - remove all PPT's whos scores showed no difference
• 1. Ordinal Data
  2. Test of Association
  3. Related

  Spearman's Rho
• What is different about Spearman's Rho and Pearsons - R Test

  They are both tests of association, meaning they look at the correlation between variables rather than an experimental cause and effect
• Correlations;

  Near -1 = negative correlation (weak relationship)

  Near 0 = no correlation (no relationship)

  Near +1 = positive correlation (strong relationship)
• 1. Interval Data
  2. Test of Difference
  3. Unrelated

  Unrelated T Test
• 1. Interval Data
  2. Test of Difference
  3. Related Data

  Related T Test
• 1. Interval Data
  2. Test of Association
  3. Interval Data

  Pearsons - R Test
• Which Tests uses ordinal data

  • Wilcoxon Test
  • Spearman's Rho
  • Mann Whitley Test
• Which Tests use Nominal data

  • sign test
  • chi-squared
• Which Tests use interval data

  • Unrelated T-Test
  • Related T-Test
  • Pearsons R Test
• Which Tests are tests of difference

  • Sign Test
  • Chi-Square Test
  • Mann Whitley Test
  • Wilcoxon Test
  • Unrelated T Test
  • Related T Test
• WHich tests are tests of association

  • Spearmans Rho
  • Pearsons R Test
• Which Tests use Related data

  • Sign Test
  • Wilcoxon Test
  • Spearmans Rho
  • Related-T Test
  • Pearson's R Test
• Which tests use unrelated data

  • Chi squared Test
  • Mann Whitney Test
  • Unrelated T Test