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philobiblius"The fewer American (born) grandparents a pupil has, the higher his achievement ratio is likely to be."
The time was 1940. The study was of 297 students across 4 (white) Baltimore high schools, each of whom had scored over 120 IQ on an Otis-Lennon (or other) IQ test. Of the 297 students, 125 had 4 American-born grandparents. 91 had none. 24 did not know where all of their grandparents had been born.
A similar split was seen in pupils whose dominant language at home was not English, though that was a bit more skewed by gender than the grandparent question was (with boys being higher than the girls among those with non-English speaking homes).
Achievement Ratio was a comparison between the IQ score and a performance measure.
"...the pupils who were deprived of privileges by their parents as a method of punishment had a lower mean achievement ratio than the pupils who were lectured or punished in any other way. Those pupils who received no punishment at all were ranked next in mean achievement ratio. Apparently, low achievement ratio is associated with being deprived of privileges, and high achievement ratio is associated with whipping and lecturing by parents."
Factors Associated with the Achievement of High School Pupils of Superior Intelligence(pp. 53-68) ~John W. Musselman, The Journal of Experimental Education (Vol. 11, No. 1, Sep., 1942).
The time was 1940. The study was of 297 students across 4 (white) Baltimore high schools, each of whom had scored over 120 IQ on an Otis-Lennon (or other) IQ test. Of the 297 students, 125 had 4 American-born grandparents. 91 had none. 24 did not know where all of their grandparents had been born.
A similar split was seen in pupils whose dominant language at home was not English, though that was a bit more skewed by gender than the grandparent question was (with boys being higher than the girls among those with non-English speaking homes).
Achievement Ratio was a comparison between the IQ score and a performance measure.
"...the pupils who were deprived of privileges by their parents as a method of punishment had a lower mean achievement ratio than the pupils who were lectured or punished in any other way. Those pupils who received no punishment at all were ranked next in mean achievement ratio. Apparently, low achievement ratio is associated with being deprived of privileges, and high achievement ratio is associated with whipping and lecturing by parents."
Factors Associated with the Achievement of High School Pupils of Superior Intelligence(pp. 53-68) ~John W. Musselman, The Journal of Experimental Education (Vol. 11, No. 1, Sep., 1942).
