Jordan is asked to filled in a questionnaire about his daily usage of internet. What type of measures is used?
a. self-report
b. Test
c. Behavioural
d. Physical

Why did working women earn one-thrid to one-half as much as men

Which phrase correctly completes the statement? "the korean war " lasted 3 years. has never ended. was won by north korea. was won by south korea lasted 3 years. has never ended. was won by north korea. was won by south korea.

Which products do you think required scientific knowledge to develop?