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.
In very rough numbers, we have about 25 million autos each burning about 2 - 3 gallons per day average. This would lead to the figure 50 to 75 million gallons of gasoline per â¦ day.   An official figure of 1.2 billion gallons was released in a recent month.Divide by 30 days to get only 40 million gallons per day.n very rough numbers, we have about 25 million autos each burning about 2 - 3 gallons per day average. This would lead to the figure 50 to 75 million gallons of gasoline per â¦ day.   An official figure of 1.2 billion gallons was released in a recent month.