# Introduction to the bdi-2 in ei

January 19, 2018 | Author: Anonymous | Category: Math, Statistics And Probability, Statistics

#### Description

DETERMINING ELIGIBILITY IN MA EARLY INTERVENTION A General Overview to Scoring

TODAY’S AGENDA

Background information about the BDI-2  Completing the Record Form  Determining Eligibility 

BACKGROUND INFORMATION  

Developed for children birth-7.11 years old Standardized test with nationally representative sample of 2500 children Bias reviews on all items conducted for the following areas of concern:     

Gender Ethnicity Cultural Regional Socio-economic

OVERVIEW OF ASSESSMENT NORM-

Allow for comparisons of a child’s performance with that of a reference group --> children of the same age

Generates normative scores:  Standard scores/Developmental Quotients  Mean = 100, Standard Deviation = 15  Scaled scores  Mean = 10, Standard Deviation = 3

Norm-referenced tests follow standardized administration procedures, meaning that administration is conducted in a uniform and consistent way so that a child’s performance can be compared fairly to the performances of other children.

REFERENCED TESTING

* Red line indicates 1.5 SD

INTERPRETATION OF EVALUATION RESULTS DETERMINING ELIGIBILITY:

DEVELOPMENTAL QUOTIENT = 77 1.5 STANDARD DEVIATIONS BELOW THE MEAN

Determining Eligibility Scoring and Interpreting

STARTING POINT: first item administered in each sub-domain. Chosen by the evaluation team. Often based on the child’s chronological age BASAL: Functional level at which child shows mastery of tasks  Child

must score 3 consecutive 2-point responses

CEILING: Level at which tasks become too difficult  Child

must score 3 consecutive 0-point responses

What is the raw score for the Gross Motor Subdomain?

Step 2 Test in reverse order until basal is met Step 1 Start Point GM 20 Step 3 Continue testing forward until ceiling is met

Calculating the Raw Score 

For each subdomain add up the 2 scores and the 1 scores to determine the raw score. 

REMEMBER: the basal assumes that the child would get a score of 2 for all of the preceding tasks, so you must add in these sums to the raw score.

Transfer the raw score onto the Scoring Profile on the front of the scoring booklet (2nd column of large table)

Use the raw scores to determine the percentile rank and scaled scores for each subdomain using Appendix B.

Scoring continued… 

Use exact chronological age and obtained raw scores to derive (Appendix B):  Age Equivalents (subdomains)  Scaled Scores (subdomains)  Percentile Ranks (subdomains & domains) Determine the Sum of Scaled Scores for each domain and then use these numbers to derive (Appendix C):  Developmental Quotients (domains)  Confidence Intervals (domains) Create subdomain & domain profiles

Scoring Exercise SCORE SUMMARY 1.

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Enter subdomain raw scores. Use Appendix A to obtain age equivalent (AE). Use Appendix B to obtain percentile rank (PR) and scaled score. Total subdomain scaled scores within each domain. Then total the totals.

Scoring Exercise Con’t SCORE SUMMARY CA: 5 years, 1 month 1. Enter raw scores for subdomains. 2. Record AE (Ap. A). 3. Record PR and SS (Ap. B). 4. Total subdomain scaled scores & Total.

Scoring Exercise Con’t

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DOMAIN & BDI-2 TOTAL SCORES Transfer domain scaled score totals to sum of scaled scores boxes. Use Appendix C to obtain the DQ, PR, and Confidence Interval (90% or 95%) for all 5 domains and the BDI-2 Total.

Scoring Exercise Con’t 1.

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COMPOSITE PROFILE Transfer the developmental quotients to the appropriate boxes. Place a dot (or an X) in the column for the obtained DQ. Connect the dots (or X’s) to obtain a norm-referenced profile of the child’s performance on the composites. Do not connect the domains to the total score. If a domain was not administered do not connect lines through that domain.