Another Use of Van Wagenens Table 1 to Compute Spelling Ages From the Bucking
Another Use of Van Wagenens Table 1 to Compute Spelling Ages From the Bucking
Walter Emmett Morgan
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01 ^•I. Q. Sp. Q. Ifeari Differ 9 nee M.^ - M. — 7-. 50 Corrolation betTOees Sengrs^ ?fental Ability Aiid rQelliaa Ability Applying the Pearson produet-monient formula for computing -21- the oorrelatlon coefficient to the tv/o series of 182 qaotients resulted in a correlation coefficient o . +. 7515 i. 0218. Significance of tfa^, Correlation A positive correlation so high as . 75, with so lovv a I^obable Error as •02* based upon n' arly 200 cases, and with a standiird deviation difference of on...ly three points (3, 08 }, is very highly significant indeed* The low Probable iilrror and the slight difference betiseen the standard Devia ti ois mean that the correlation itself is vA. Lid. ^iSie high degree of correlation here shown indicates a very close, positive relationship between general mental ability and ability to spell* Ohe fact of such a close relationship should be taken into account in teaching practise, aid no teacher should rest content until the pupilV ' aocoaplislsnent in spelling closely approximates his mental accom- plishment: that is, until his Accomplishment Quotient for spelling (Intelligence Quotient divided by Spelling Quotient) approxinates 100.
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