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Three, nine-point items are used to measure the likelihood that a particular product or brand will be in short supply.  The timeframe is not stated in the items themselves but could be easily stated in the instructions.

The extent to which a consumer believes that a particular product or brand is in short supply due to unintentional order problems or greater demand than expected is measured using a three-item, seven-point Likert-type scale.

Seven, seven-point Likert-type statements are used in the scale to measure the degree to which a customer can count on a service provider and believes it to be honest. 

Five, seven-point Likert-type statements are used to measure the degree to which a customer believes that competiting service providers could do a better job than one's current service supplier.

Three, seven-point Likert-type statements are used to measure the extent to which a consumer is unwilling to let his/her electrical supplier control the amount of the power that his/her household receives.