A Random Numbers Table or Online Generator Is Often Used

Multiple Choice

A random numbers table or online generator is often used by researchers to create random selection or assignment because:

A) use of tables and computers increases the quality of the scientific investigation.
B) they guarantee equal assignment of participants across levels of the independent variable.
C) in general, people are poor at judging randomness and therefore must use a machine to generate random sequences.
D) their use ensures less bias in the research observations.