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This guide helps analyze children's developmental scores overlapping in different age groups, utilizing Huntley and GMDS-ER manuals. Calculate age equivalent and quotient using Faragher norms and percentiles for accurate assessment. Find minimum and maximum age equivalents to derive the 24-month level and determine quotient range.
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CHILDREN WHOSE SCORES OVERLAP HUNTLEY / GMDS-ER GROUP 1 GROUP 2 GROUP 3 GROUP 4 C.A. UNDER 2 YEARS C.A. UNDER 2 YEARS C.A. OVER 2 YEARS C.A. OVER 2 YEARS TOTAL SUBSCALE SCORES ARE OVER THE 24 MTH LEVEL TOTAL SUBSCALE SCORES ARE UNDER THE 24 MTH LEVEL TOTAL SUBSCALE SCORES ARE OVER THE 24 MTH LEVEL TOTAL SUBSCALE RAW SCORES ARE UNDER THE 24 MTH A.E. LEVEL (50%ile) OBTAIN AGE EQUIVALENT FROM 50TH PERCENTILE CHARTS, FARAGHER NORMS. TO CALCULATE QUOTIENTS: MA x 100 CA ADD SCORES IN SECTIONS I AND II, THESE ARE THE AGE EQUIVALENT. USE HUNTLEY MANUAL TO FIND %ile SCORE TO CALCULATE QUOTIENTS: MA x 100 CA USE FARAGHER NORMS FOR PERCENTILES, Z-SCORES, AGE EQUIVALENTS ETC. ADD SCORES IN SECTIONS I AND II FOR MINIMUM AGE EQUIVALENT. GET SCORE RANGE BETWEEN MINIMUM AND MAXIMUM WHICH IS 24 MTHS CALCULATE QUOTIENT RANGE