One study showed that when 6- to 13-year-olds received tokens ...

[jenna1]

One study showed that when 6- to 13-year-olds received tokens they could exchange for money each time they gave a correct response on the WISC verbal scale, performance was improved only for
 
  a. White children from middle income homes.
  b. White and African American children from low income homes.
  c. African American children from low income homes.
  d. White children from low income homes.

Question 2

In which scales can you make meaningful interpretation of an arithmetic operation such as addition?
 
  a. Nominal scale and ordinal scale
  b. Ordinal scale and interval scale
  c. Interval scale and nominal scale
  d. Ratio scale and interval scale

[juliaf]

Answer to Question 1

d

Answer to Question 2

d

[jenna1]

Thanks for the timely response, appreciate it

[meganmoser117]

Gracias!