Psychology-Research Methods

• What is the non-parametric test used for association?


  Chi-Square test
• What is the non-parametric test for related samples?

  Spearman's Rho
• What is the parametric test for related samples?


  Repeated Measures T-Test
• What is the parametric test for independent samples?


  Independent T-Test
• What type of data is suitable for the Chi-Square test?


  Nominal data
• What type of data is suitable for Spearman's Rho?


  Ordinal data
• What type of data is suitable for the Independent T-Test?


  Interval/ratio data
• What are the main types of inferential statistics mentioned?

  • Sign test
  • Chi-Square test
  • Spearman's Rho
  • Mann-Whitney test
  • Wilcoxen
  • Related T-Test
  • Unrelated T-Test
• What is the Mann-Whitney U test used for?


  To compare differences between two independent groups
• What is the significance of using parametric tests?

  They are more powerful then non-parametric.
• What type of design is used for Related T-Test?

  Repeated measures/ Matched pairs
• What type of design is used for Unrelated T-Test?

  Independent groups design
• What are the characteristics of the different types of data used in research methods?

  • Nominal: Categories without order
  • Ordinal: Categories with a meaningful order
  • Interval: Numeric scales with equal intervals
  • Ratio: Numeric scales with a true zero point
• What is the non-parametric test used for testing differences between related samples?


  Wilcoxon Signed-Rank Test
• What type of data is the Chi-Square test used for?


  Nominal data
• What does the Spearman's Rho test measure?


  Association between ordinal data
• What is the parametric test for independent groups?


  Independent T-Test
• What type of design is used for repeated measures?


  Repeated Measures Design
• What is the test used for assessing the difference between two independent groups?

  Independent T-Test
• What type of data is required for a Pearson's T-Test?


  Interval or ratio data
• What are the types of research designs associated with different statistical tests?

  • Wilcoxon Signed-Rank Test: Repeated Measures Design
  • Chi-Square Test: Independent Groups Design
  • Spearman's Rho: Pairs of Related Data
  • Independent T-Test: Independent Groups Design
  • Paired T-Test: Pairs of Related Data
• How does the Wilcoxon Signed-Rank Test differ from the Mann-Whitney U Test?


  Wilcoxon is for related samples, Mann-Whitney is for independent samples
• What is the primary purpose of the Chi-Square test?


  To test for association between categorical variables
• What type of data does the Spearman's Rho test analyze?


  Ordinal data
• What is the difference between parametric and non-parametric tests?

  Parametric tests are more powerful.