1. Barbara A. Wilson, Eve Greenfield, Linda Clare, Alan Baddeley, Janet Cockburn, Peter Watson, Robyn Tate, Sara Sopena, Rory Nannery & John Crawford (2008)

2. BACKGROUND

3. History
The original RBMT was published in 1985, with an update in 2003 (RBMT-II)
Designed to predict everyday memory problems and to monitor change over time
Original data was collected on adults aged and older adult and child samples were also collected post-publication
Later versions included a development of RBMT-C (1991) and RBMT-E (1998)
Numerous studies since publication of the RBMT have shown that the tool is a valid instrument for detecting everyday memory problems in patient groups

4. Why do we need a new version?
Some changes were needed to improve the clinical effectiveness of the test
In 2003 RBMT-II was published but this only included an update of materials, e.g. included more multiracial stimuli to reflect ethnic diversity of UK
RBMT-3 includes new items on tests, new materials, a new subtest (Novel task) and increased normative sample
The difficulty level of the RBMT-3 is between that of the RBMT-II and RBMT-E

5. Features of the new tool
The RBMT-3 contains 14 scored subtests
12 of these are the same or slightly altered from the RBMT-E.
New ‘Novel task’ is included to assess new learning
30 minutes administration
2 versions allowing retesting
Can be used by a range of professionals
Intervention chapter
Scoring examples reported in the manual to aid interpretation

6. Core capabilities of RBMT-3
Predict everyday memory problems
For use in neuropsychological and older adult settings
Helpful with assessment of patients with more severe cognitive difficulties, e.g. acute settings, older adults
Meaningful to clients – reflects everyday memory skills
Links to rehabilitation intervention

7. THE TEST

8. The Subtests First & Second Names – Delayed Recall
Belongings – Delayed Recall
Appointments – Delayed Recall
Picture Recognition – Delayed Recognition
Story – Immediate Recall
Story – Delayed Recall
Face Recognition – Delayed Recognition
Route – Immediate Recall
Route – Delayed Recall
Messages – Immediate Recall
Messages – Delayed Recall
Orientation & date
Novel Task – Immediate Recall NEW!
Novel Task – Delayed Recall NEW!

9. New Subtest – Novel Task
Assesses ability to learn a new task
Deficits in this skill impact on everyday life, and also influence the individual’s capacity to benefit from compensatory aids used in rehabilitation.

10. Why a Novel Task test?
It is important to establish the level of ability in learning new tasks before attempting to teach them for rehabilitation

11. NOVEL TASK Based on a mathematical dissection 6 piece puzzle
Assembled in a set order
3 learning trials and a delayed trial
Scoring criteria:
Order
Position

12. STANDARDISATION

13. Standardisation 333 Normative Controls 172 females 161 males
16-89 years of age (mean age = 44.3 years)
Chi-square goodness-of-fit tests revealed that the sample distribution of age, education, gender and ethnicity did not differ significantly from the expected UK 2001 census figures

14. Standardisation Exclusionary criteria for Normative Controls
A history of hospitalisation or treatment for severe psychiatric disturbance, drug or alcohol abuse
Spoken English inadequate for understanding test materials or instructions
Severe visual impairment
Brain damage or loss of consciousness for five minutes or more

15. Clinical sample 75 participants Category N Traumatic Brain Injury 19
Stroke 24
Encephalitis 20
Progressive Conditions 12
Total 75

16. SCORING STUDIES

17. Subtest Scoring Studies
Raw scores on the 14 RBMT-3 subtests are converted to subtest scaled scores with a mean of 10 and a standard deviation of 3
Percentile ranks for scaled scores are provided
Subtests take into account an individual’s age and data is reported for the following age bands:
16-24 years of age
25-34 years of age
35-44 years of age
45-54 years of age
55-64 years of age
65-74 years of age
75-89 years of age

18. General Memory Index
A General Memory Index (GMI), representing overall memory performance can also be calculated
GMI is standardised to have a mean of 100 and a standard deviation of 15
GMI scores are calculated by summing the scaled scores on the RBMT-3 subtests and then converting this sum to a GMI using the appropriate conversion table
Conversion tables also report the confidence intervals and percentile ranks for each GMI

19. Reliability
Alternate form reliability coefficients for each subtest for Version 1 and Version 2 of the test with the normative and clinical sample combined ranged from 0.57 to 0.86.
The reliability coefficient of the GMI was 0.87 for both Versions 1 and 2
With the exception of the Messages - Delayed Recall subtest the inter-scorer reliability for the RBMT-3 subtests were 0.9 or higher, indicating a high level of agreement between scorers
The lower level of agreement on the Messages – Delayed Recall subtest was attributable to only two of the 18 pairs who completed the inter-scorer study and is thought to be due to two examinees whose results were particularly difficult to score on this subtest.

20. Validity
Factor analytic results confirmed the construct validity of forming a GMI
Ecological validity (as supported by performance against the Prospective and Retrospective Memory Questionnaire; Smith et al., 2000) was moderate (r =-.43 Version 1; r=-.44 Version 2)
Performance of the clinical sample compared to the normative sample provided strong evidence of the sensitivity of the RBMT-3 to memory problems

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