Analysing 2x2 Tables: Chi-Square Test and Beyond

University College London

Course

In London

£ 125 VAT inc.

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Description

  • Type

    Course

  • Level

    Intermediate

  • Location

    London

  • Class hours

    5h

  • Duration

    1 Day

  • Start date

    Different dates available

This one-day course aims to demystify the range of statistics that can be used to summarise the associations between two binary variables.
It'll move beyond standard chi-square tests to investigate other options that may yield more useful information.
This course is run by UCL's Centre for Applied Statistics Courses (CASC) - part of the UCL Great Ormond Street Institute of Child Health (ICH).

Facilities

Location

Start date

London
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Gower Street, WC1E 6BT

Start date

Different dates availableEnrolment now open

About this course

The course is for non statisticians and is open to anyone who needs to understand or analyse 2x2 tables.
Knowledge of the very basics of statistics (such as means, standard deviation, confidence intervals, etc.) is beneficial.

You can request a certificate of attendance for this course once you've completed it.
the name of the completed course for which you'd like a certificate
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This centre's achievements

2018

All courses are up to date

The average rating is higher than 3.7

More than 50 reviews in the last 12 months

This centre has featured on Emagister for 15 years

Subjects

  • Risk
  • Statistics
  • IT risk
  • Fishers exact testing
  • ARR
  • NNT
  • RR
  • Attributable risk
  • Odds ratio
  • Kappa
  • Likelihood ratios
  • Proportions tests

Course programme

When faced with exploring the relationship between two binary variables (e.g. comparing the percentage who test positive between two treatment groups, or between two subgroups such as males and females) it's common to display this as a 2x2 table and use a chi-square test to determine the statistical significance of any difference. Chi-square tests are commonly used to compare the percentage of individuals in two groups who share a trait.

However, there are many other statistics that may be applied to a 2x2 table to provide more useful information.

This course aims to help guide researchers through alternative analyses to decide on the most appropriate investigation of their data.

The following tests and concepts are covered in the course:

  • Fishers exact testing
  • Absolute risk reduction (ARR)
  • Proportions tests
  • Number needed to treat (NNT)
  • Relative risk (RR)
  • Attributable risk (AR)
  • Odds ratio (OR)
  • Kappa
  • Sensitivity and specificity
  • Positive and negative predictive values
  • Likelihood ratios

For each statistic we consider the interpretation and appropriate usages.

See related categories

Analysing 2x2 Tables: Chi-Square Test and Beyond

£ 125 VAT inc.

The best IT Systems courses

See all

See all