That is, the experimenter randomly assigned students to the two groups. Random assignment is a powerful tool though it does nothing to decrease the amount of error that occurs as a result of extraneous variables, in only equalizes it between groups.
I work at ASDA (days) but my other half used to work nights. Its over Â£8 an hr and working nights everyone becomes a real community as there aren't really many customers about so you can have a laugh.y dream job at the moment is to work at ASDA preferably at George. ASDA is one of the best places around with products that represent a great value for money. They also sell great chocolate/cookies. Best supermarket chain around by a clear mile.
For example, RN Magazine found that nurses working night and weekend shifts averaged $4 more per hour; those who worked evening shifts or were on-call averaged $3 more per hour; and those who worked holidays averaged $8 more per hour.