To illustrate operational definitions of psychological concepts, we contrast them with their dictionary definitions. Table 4.1 lists six psychological variables, their dictionary definitions and one or more operational definitions.
Of course there will be wide variations, butâ¦. According to my (very general) estimations listed above, on average each person may consume 66 gallons of water each day. Generally, in the United States there are about 2.5 people per household. So the water consumption figure jumps to 165 gallons per day.
A gallon of water equates to between 3 1/2 â 4 1/2 litres per day (depending on whether you are using a US or UK gallon measurement). This is a lot of water to drink. However, if this is replenishing a lot of lost fluid during the day this could be acceptable.