When you arrange two rows of five pennies each and place them a half-inch apart in the first row while separating the other row of five pennies by three inches, the preoperational child will say that the second row has more pennies. However, the concrete operational child has the capacity to __________ numbers and will not make this same error

A psychologist administered an IQ test to Joshua, age 12, and found his IQ was 30. Joshua also exhibits poor motor development and poor communication skills. What is the most likely diagnosis?

a) savant syndrome b) Korsakoff's syndrome c) severe mental retardation d) moderate mental retardation

When large values of one attribute are associated with large values of another

attribute and small values are associated with small values, the correlation between the two attributes is (a) zero (b) positive (c) negative (d) it can be any of the above (e) not enough information is given to answer the question