Percentile ka IQ ƒe nɔŋlɔvi 115, 130 kple 145 le?

Akɔntabubu la zã z = (score − 100) / 15 kple standard normal distribution ƒe cumulative value, eye wòtsɔ kɔ ɖe decimal 2 ŋu. Dzidzeƒe 100 kple SD 15 nye dzesiɖeɖe ƒe mɔnu si wozãna geɖe. Test ƒe handbookwoe ɖoa ŋu na norms si sɔ, score ƒe range kple nu si wòfia; normal curve ƒe akɔntabubu ŋutɔ mate ŋu aɖo test yeye ŋu o. Neisser et al., 1996 Pearson, 2020

Percentile menye ŋuɖoɖo ƒe akpaɖeɖe o

Percentile ƒu nu tso ame ƒe teƒe le reference distribution me. Megblɔna be ame aɖe ŋuɖo item ƒe akpa ma ŋu nyuie alo esi xɔ intelligence ƒe akpa ma o. Test zãzã ƒe mɔfiafia bia be reference group si wɔe ɖe eŋu kple dzesi si kpe ɖe score ƒe nufiafia ŋu nanye. Ne esiawo mele o la, percentile ate ŋu aɖe dzesi si le nyateƒe me kpɔŋu wò ŋu. International Test Commission, 2001

Nu ka trɔna le ɣleti si ame ƒe age trɔ?

Wotsɔ age ɖo IQ norms ŋu: age group ɖesiaɖe ƒe reference mean nye 100 le dzesiɖeɖe si wozãna la me. Vi kple adult ate ŋu axɔ age-adjusted score ma ke, gake woate ŋu aɖo item vovowo ŋu alo axe raw total vovoe. Eya ta normal model ƒe akɔntabubu la mefia nu tso performance ƒe curve si womewɔ age adjustment na tso dzɔgbeɖeɖe me o. Neisser et al., 1996 Pearson, 2020

Norms hã kpɔa test, amewo ƒe ha kple ɣeyiɣi ŋu. Raven ƒe agbalẽ la ɖe nu vovowo fia le matrix-test norms me le teƒe kple ɣeyiɣi vovowo. Ele be womaɖo instrument ɖeka ƒe score nu abe test ɖesiaɖe kple historical norms table ƒe measurement nɔnɔmewo sɔ ɖe go o. Raven, 2000

Nu ka ta ele be wòakpɔ tail si le eme didi ŋu nyuie wu

Norm sample suewo me xɔɖeŋu geɖe mele eme tso score siwo dzɔna ŋutɔ la ŋu o. Eya ta percentile si le tail ƒe nu vɔ̃ la ate ŋu anɔ model ƒe assumptions ŋu kple nu si woɖo to ŋu. Test zãzã ƒe mɔfiafia bia dzesi si sɔ na inference la, eye score report me uncertainty le nyuie wu be wotsɔ decimal si le nuwuwu la abe nyateƒe si mesɔ o ene. International Test Commission, 2001 Pearson, 2020

Matrix puzzle ƒe score ɖea IQ blibo la fiaa?

Carpenter kple eƒe habɔbɔa meɖo ŋku ɖe susuƒe siwo wozãna le Raven matrices me. Esia ɖea susuƒe aɖe fia tso dɔwɔwɔ ƒe ƒome aɖe si le vevie ŋu, menye mɔ si wòna be woatrɔ puzzle score si ame wɔ le eƒe aƒe me siaa wòzu IQ score si wotsɔ norms ɖo ŋu o. Dɔwɔwɔ tso susu ƒe ɖoɖo ŋu hã ɖe ŋku ɖo be madzɔ o be dɔwɔwɔ ɖesiaɖe ɖea ŋusẽ ƒe akpa ɖeka ko fia. Carpenter et al., 1990 Hampshire et al., 2012

Nu ka tso test-gbugbɔwɔ kple measurement error ŋu?

Meta-analysis ɖe gain siwo dzɔna le cognitive ability test gbugbɔwɔ me fia. Eya ta test ƒe ŋuɖoɖo si wogbugbɔ wɔ ate ŋu aɖe familiarity hã fia, kple nɔnɔme bubuwo. Reliability research hã gblɔ be ele be task scores kple wogbugbɔwɔ ƒe nɔnɔme siwo wodea tsitre ɖe eŋu la woakpɔ stability le wo me hafi woaɖo wo nu abe ame ƒe nɔnɔme ene. Numemabia eve siawo dometɔ aɖeke meɖoa ɖo le percentile ƒe dzesi geɖe ŋu o. Scharfen et al., 2018 Hedge et al., 2017

Le assessment si wotsɔ ɖo ŋu la, zã eƒe report, age norms kple confidence interval. Le online task si wozãna kpɔɖeŋu ko la, zã eƒe nɔnɔme ɖe nu si eƒe validation ɖo ŋu la. Akɔntabubu ƒe kpɔɖeŋu siawo ɖea scale si wozãna geɖe fia; meɖo ŋu be wòagblɔ na player be eƒe susu nyo wu amewo ƒe akpa aɖe o. International Test Commission, 2001 Pearson, 2020

Nu vevi siwo woatsɔ ado goe nye be woase ale si wotsɔna bu percentile kple be dzesi li be score aɖe le curve ma dzi. Ele be woaxɔ wo eve siawo katã hafi woagblɔ nu tso ame ɖeka kple ame bubu ƒe sɔsɔ me. Neisser et al., 1996 International Test Commission, 2001