This three item, seven-point scale measures a consumer's ease of making purchases within a product category because of his/her established, prepurchase preference.
The basis on which a person thinks a decision was made is measured in this five-item, seven-point scale. Essentially, the scale attempts to measure the relative roles played by affect and cognition in a particular decision a person has made.
A four-item, five-point Likert-type scale is used to measure the degree to which a person communicates with friends before deciding what to buy. The scale was developed for use with teenagers but appears to be amenable for use with other age groups, though some retesting may be necessary.
The seven-item, seven-point scale assesses a person's understanding of cars, with particular emphasis on having familiarity with the purchase process.
The scale is composed of four, seven-point Likert-type items that measure a consumer's perceived knowledge of brands in a specified product category as well as the confidence to make purchase decisions and give advice to others about the product class.
The four-item, seven-point ratings scale is used to measure the degree of involvement a person reports having with a particular decision-making activity.
Seven, five-point, Likert-type statements are used to measure the degree to which a person expresses the need to have friends' approval of where and what he/she buys. The scale was developed for use with teenagers but appears to be amenable for use with other age groups, though some testing may be necessary.
This three-item, seven-point Likert-like scale is used to measure the probability that a consumer would base his/her purchase decision on his/her relevant past experiences. The measure was referred to by Murray (1985) as past personal experience.
The five-item, five-point Likert-type scale measures the degree to which a child describes his/her parents as determining where, when, and what he/she buys.
Three, five-point, Likert-type items are used to measure the degree to which a person (child, teenager) describes seeking information and advice from his/her parents before making purchase decisions.

