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The Marketing Scales website is a gold mine of information.  It is the only source that helps me understand the psychometric quality of the instruments used in past research.  I recommend that researchers bookmark this site . . . they will be back!
Bob Moritz
Marshfield Clinic Research Foundation


Four, seven-point Likert items are used to measure the degree of confidence a person has in his/her capability to learn a particular task and competently perform it.

Five, nine-point Likert-type items compose the scale and measure a person’s confidence that one will successfully manage his/her health by engaging in a certain activity.  (The activity can be specified by the researcher.)

The degree of certainty a person has in the appropriateness of a particular choice in which one option was selected over another one (explicitly stated) is measured in this five-item Likert scale.

With four, seven-point Likert-type items, the scale measures how much a person has confidence in the reliability with which a company handles the customer data in its possession.

A person’s confidence in his/her ability to accomplish financial goals is measured with seven Likert items.

The degree to which a person is confident that his/her attitude toward an object is correct is measured in this scale with six, seven-point Likert-type items.

This seven-item, seven-point Likert-type scale is used to measure a momentary self-centered and arrogant frame of mind.

The degree to which a person expresses confidence in his/her ability to find information about a product in order to make a decision is measured with three, seven-point Likert-type items.  While this scale might be used with sources other than online, it seems to be most suited for that context.

This three item, 100-point Likert-type scale measures a person’s belief that a particular bank would be a excellent institution in which to put money.  The sentences are phrased hypothetically such that the scale makes most sense when the person is aware of the bank but is not a customer.

This seven item, 10 point Likert-type scale measures a type of social anxiety that primarily occurs as a result of interacting with other people.