In 1936, Herman G. Canady published his article “The Effect of ‘Raport’ on I.Q.: A New Approach to the Problem of Racial Psychology”. Canady was interested on the effect of testing conditions on test results and, in particular, the difference of Black children’s scores with either a white or Black examiner. White and Black children were administered two tests (specifically, the Binet-Simon measuring scale) separated by up to 52 weeks, one by a white examiner and one by a Black examiner. Half of the children (randomly assigned) were tested first by the white examiner and then by the Black examiner and half the children were tested in the reverse order. At the end of the experiment, Canady showed that Black children increased performance with a Black examiner and white children increased performance with a white examiner. a) What type of study was this? b) If Canady had only tested Black children, what type of study would this have been? c) What type of variable is the race of the examiner? d) What type of variable is test performance? e) What type of variable is the race of the children? f) What is the scale of measurement of the Binet-Simon test? g) What is the scale of measurement of the race of the children? h) What type of variable is the examiner's race? i) Name one confounding variable.
In 1936, Herman G. Canady published his article “The Effect of ‘Raport’ on I.Q.: A New Approach to the Problem of Racial Psychology”. Canady was interested on the effect of testing conditions on test results and, in particular, the difference of Black children’s scores with either a white or Black examiner. White and Black children were administered two tests (specifically, the Binet-Simon measuring scale) separated by up to 52 weeks, one by a white examiner and one by a Black examiner. Half of the children (randomly assigned) were tested first by the white examiner and then by the Black examiner and half the children were tested in the reverse order. At the end of the experiment, Canady showed that Black children increased performance with a Black examiner and white children increased performance with a white examiner.
a) What type of study was this?
b) If Canady had only tested Black children, what type of study would this have been?
c) What type of variable is the race of the examiner?
d) What type of variable is test performance?
e) What type of variable is the race of the children?
f) What is the scale of measurement of the Binet-Simon test?
g) What is the scale of measurement of the race of the children?
h) What type of variable is the examiner's race?
i) Name one confounding variable.
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