Understanding Statistics in Diagnostic Assessment - Aug 2023 to Aug 2024: Patoss

Understanding Statistics in Diagnostic Assessment - Aug 2023 to Aug 2024: Patoss

Overview

  • Date(s)
    27 Aug 2023 - 27 Aug 2024
  • Cost
    £31.00
  • Provider
    Patoss
  • Delivery type
    Distance
  • Course level
    Advanced
  • Course summary

    Understanding statistics is fundamental to understanding what a diagnostic test result means and to be able to explain it clearly to the person being assessed. Quantitative data is a fundamental component of all full diagnostic reports and if a diagnosis is to be fully supported then it is essential that all data is calculated and reported with utmost accuracy.

  • CPD credit hours
    1 hour
  • Course themes
    Reviewing principles of psychometrics, statistics, assessment and underlying theory, SpLD testing methods, interpretation, report writing, feedback and test materials
  • Audience
    Assessors, Support, Assessment centres, Training institutions
  • SASC Code
    SASC-20230824-59

Description

Understanding statistics is fundamental to understanding what a diagnostic test result means and to be able to explain it clearly to the person being assessed. Quantitative data is a fundamental component of all full diagnostic reports and if a diagnosis is to be fully supported then it is essential that all data is calculated and reported with utmost accuracy.

The course will cover:

  • What is a standardised test?
  • Understanding the normal distribution of a population – the normal distribution curve.
  • Ways of measuring a population distribution

-Descriptive statistics
-Standard deviation
-Standard scores
-Percentiles
-Scaled scores
-Descriptors – what does average mean

  • Converting between scores
  • Understanding accuracy – significance, standard error and probability ranges
  • Composite scores and indexes – when to use and when to exclude
  • Visualising data to help understanding.
  • The course will use examples from the SDMT, TOMAL-2 and the WRIT. It will be helpful to have the manuals for these tests available but not essential.

Learning outcomes

Delegates will understand:

  • the process of standardisation and the results of the standardisation process – reliability and validity
  • the normal distribution of a population – the 68-95-99.7 rule
  • calculating standard deviation, standard error, z-scores and probability ranges from manuals
  • creating their own data visualisations

Course prerequisites

Delegates should be assessors or hold an equivalent level 7 qualification.