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

BACKGROUND

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 16-65 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

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

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

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

THE TEST

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!

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.

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

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

STANDARDISATION

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

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

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

SCORING STUDIES

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

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

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.

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

Contact Us For additional information or to place an order: 800.627.7271 Psychcorp.com