The Brief Assessment of Cognition for Schizophrenia: Validity and - - PowerPoint PPT Presentation

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Nov 03, 2023 473 likes •690 views

The Brief Assessment of Cognition for Schizophrenia: Validity and Reliability of the Filipino Version INTRODUCTION METHODS AND PROCEDURES Subject Selection/Population/Sam pling Inclusion Criteria 30 patients not less than 2 years

SLIDE 1

The Brief Assessment of Cognition for Schizophrenia: Validity and Reliability of the Filipino Version

SLIDE 2

INTRODUCTION

SLIDE 3

METHODS AND PROCEDURES

SLIDE 4

Subject Selection/Population/Sam pling



Inclusion Criteria 30 patients not less than 2 years and not more than 5 years,



literate



stable in terms of symptoms



30 non-clinical respondents who are of sound cognitive function were also gathered.

SLIDE 5

Subject Selection/Population/Sa mpling

 Exclusion Criteria  Respondents who are suffering from any

neurological, substance abuse, or mental retardation are not included in the study.

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Conduct of the Study

SLIDE 7

Preparation Phase

Transaction Letter addressed to R. Keefe Agreement, Licensure, Shipment Translation Lay-outing, Editing Ethics Review

SLIDE 8

Translation of the Manual

Forward- Translation (Commission of the Filipino Language) Back Translation (Individual Translator) Lay-out, Editing 1 and a half months 2 weeks 6 months

SLIDE 9

Ethics Review (EAC)

Informed Consent and Consent Form (Clinical and Controlled Group) Approval (Mariveles Mental Hospital)

SLIDE 10

Phase III. Data Gathering

Clinical

Initial Meeting with LAR for Consent 1 session

Control

Initial Meeting for consent and reschedule for test B

2 sessions (Test A & B) 1 week testing interval

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Analysis of Data

 Discriminant Analysis (Validity)  Reliability (Internal Consistency; Crohn Bach’s

Alpha)

 Reliability (Test-retest)

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Statistical Tool

 The system used was IBM SSPS version 20.  Cronbach’s Alpha: Internal Consistency  Reliability was also measured through test-retest.  Discriminant Analysis: Validity

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RESULTS AND DISCUSSION

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Cronbach’s Alpha N of items .776 7

Table 1. Cronbach’s Alpha (Internal Consistency) Reliability Statistics

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Table 1.1. Item-Total Statistics

Scale Mean if item deleted Scale Variance if item deleted Corrected Item total correlation Cronbach’s Alpha if item deleted Clinical Verbal Memory 97.90 3276.093 .672 .774 Clinical Digit Sequencing 93.30 2952.493 .831 .737 Clinical Token Motor Task 50.30 1145.114 .779 .844 Clinical Category Instances 93.50 2883.017 .640 .739 Clinical Oral Word Association Task 97.80 3131.062 .733 .758 Clinical Symbol Coding 87.23 2392.530 .723 .699 Clinical Tower of London 95.37 2891.482 .809 .731

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Table 2. Summary of Test-Restest Reliability

Subtest r p Verbal Memory r=.614 p=<.05 Digit Sequencing r=.505 p=<.05 Token Motor Task r=.581 p=<.05 Category Instances r=.512 p=<.05 Word Association r=.407 p=<.05 Symbol Coding r=.671 p=<.05 Tower of London r=.788 p=<.05

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Table 3. Discriminant Analysis/ Validity

Subtest t Sig value Mean Difference Verbal Memory

9.109

.000

6.233

Digit Sequencing

9.245

.000

11.867

Token Motor Task

6.549

.000

36.900

Category Instances

5.862

.000

9.733

Word Association

7.609

.000

8.300

Symbol Coding

13.811

.000

43.433

Tower of London

6.506

.000

8.567

 Results show that in all subtest, there is a significant

difference between control group and clinical group making the BACS-F statistically valid.

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CONCLUSION & RECOMMENDATION

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 Overall, the BACS-F is an easy, portalble, and effective

tool for evaluating the cognitive function of patients with Schizophrenia.

 The study shows that the BACS-F is a highly valid and

reliable tool.

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Future Work on BACS-F

 Increase sample size.  Match demographics of clinical and controlled

respondents.

 Conduct a test-retest reliability on the same clinical

group.

 Develop sets of manuals through translation into

different dialects.

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References:



Kaneda et al; (2007), Brief Assessment of Cognition in Schizophrenia: Validation of the Japanese Version ; Psychiatry and Clinical Neurosciences Journal, 61, 602–609 doi:10.1111/j.1440- 1819.2007.01725.x

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R.S.E. Keefe et al. / Schizophrenia Research 68 (2004) 283–297; Elsevier

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Diagnostic and Statistical Manual of Mental Disorders (2013); 5th Ed., American Psychiatric Publishing, Washington DC



J. Cooper-Kahn (2015); What is Executive Function; Ldonline;

National Joint Committee on Learning Disabilities (NJCLD); Washington DC



McLeod (2012), Working Memory Model; Simply Psychology