Differences Between WJ IV Composite ... - My School …



Gf-Gc CompositeGcGfGwmGsGaGlrGvTestsOV / GINS / CFVA / NRLPM / PCPP / NWRSR / VALVz / PRConfidence9095909590959095909590959095Age23141713165613154111314171316561315513151011131511146714176131510111315111467141771315911131511121214671619813159111315111212146716199141610121518111213168101821101416101215181112131681018211115181113141611121417101217201215181113141614171012172013131512141315131681018221413151214131512141316810182215121510121316121413159111822161215101213161214131591118221712141012111312141214891518181214101211131214891517191214101211131214891518201214121413151112111381016193011121012111311121113891720401012101211131112101281016195010121011131511121113891619601012101113151112111389161970911810131511121214911141680911810131512149111416AVERAGE12141012131511131215891619Note:Gf-Gc abilities: Gc = Comprehension/Knowledge, Gf = Fluid Reasoning, Gwm = Short-term Working Memory, Gs = Cognitive Processing Speed, Ga = Auditory Processing, Glr = Long-term Retrieval, Gv = Visual Processing. Tests: OV = Oral Vocabulary, GI = General Information, NS = Number Series, CF = Concept Formation, VA = Verbal Attention, NR = Numbers Reversed, LPM = Letter-Pattern Matching, PC = Pair Cancellation, PP = Phonological Processing, NWR = Nonword Repetition, SR = Story Recall, VAL = Visual-Auditory Learning, Vz = Visualization, PR = Picture RecognitionDifferences required for statistical significance are based on the standard errors of measurement of each test for each age group and calculated with the following formula:Critical Value of Difference Score =ZSEMa2+SEMb2Where Z is the normal curve value associated with the desired two-tailed significance level and SEMa and SEMb are the standard errors of measurement for the two test scores. Reliabilities for LPM and PC are test-retest and are reported only for three age positeQuant ReasonAud Mem SpanNumber FacilityPercep. SpeedVocabularyCog EfficiencyTestsNS / ASMfW / SRepNR / NPMLPM / NPMPV / OVLPM / NRConfidence909590959095909590959095Age2911391149111012591113151417691113151417791013161215111214171215891013161215111214171215911131518131511121518131510111315181315111215181315111214172012151112151812151212141720151813131515171214141315151712141214121412141511131316121512141315121516111313161215121413151215179111517111412141214111418911151712141991115171214201316141711131112121411133011131316101211121113101240101212151011111211131011501113131611131112111311136011131316111311121113111370911161910121112111310128091116191113AVERAGE101214161214111312151214Note:Composites: Quant Reason = Quantitative Reasoning, Aud Mem Span = Auditory Memory Span, Percep. Speed = Perceptual Speed, Cog Efficiency = Cognitive Efficiency. Tests: NS = Number Series, AS = Analysis-Synthesis. MfW = Memory for Words, SRep = Sentence Repetition, NR = Numbers Reversed, NPM = Number–Pattern Matching, LPM = Letter-Pattern Matching, PV = Picture VocabularyDifferences required for statistical significance are based on the standard errors of measurement of each test for each age group and calculated with the following formula:Critical Value of Difference Score =ZSEMa2+SEMb2Where Z is the normal curve value associated with the desired two-tailed significance level and SEMa and SEMb are the standard errors of measurement for the two test scores. Reliabilities for LPM and PC are test-retest and are reported only for three age ranges. ................
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