Structure and Use of Just-About-Right Scales / Lori Rothman, Merry Jo. Parker.

Format:

Book

Author/Creator:

Rothman, Lori, author.

Parker, Merry Jo., author.

Contributor:

American Society for Testing and Materials

ASTM International.

Series:

Journal of ASTM International. Manual Series ; MNL11481M.

ASTM manual series ; MNL11481M

Language:

English

Subjects (All):

Consumers--Research--Statistical methods--Handbooks, manuals, etc.

Consumers.

Consumer goods--Evaluation--Statistical methods--Handbooks, manuals, etc.

Consumer goods.

Quality of products--Handbooks, manuals, etc.

Quality of products.

Physical Description:

1 online resource (13 pages) : illustrations, figures, tables.

Volume 2009, Issue 63 (January 2009)

Other Title:

ASTM digital library.

Place of Publication:

West Conshohocken, Pa. : ASTM International, 2009.

System Details:

Mode of access: World Wide Web.

text file PDF

Summary:

Just-about-right (JAR) scales are commonly used in consumer research to identify whether product attributes are perceived at levels that are too high, too low, or just about right for that product. While at first glance this type of scaling may appear simplistic, the process of developing and analyzing JAR scales is complex. In this manual, the history of JAR scale usage, the mechanics of JAR scale construction, inappropriate and appropriate uses of JAR scales, benefits and risks of use, and case studies that illustrate the many methods for data analysis of these scales are reviewed. Alternatives to JAR scales are also included. Finally, a summary and conclusions are presented. This manual covers the application, construction, analysis, and interpretation of just-about-right (JAR) scales for use in testing with consumers. Defined as bipolar labeled attributes scales, JAR scales measure levels of a product's attribute relative to a respondent's theoretical ideal level. These scales have an anchored midpoint of just about right or just right and endpoints anchored to represent intensity levels of the attribute that are higher and lower than ideal. The ideal point model [1] will serve as the conceptual base for JAR scale interpretation. This model is one of several available; however, it is not practical to cover all aspects of ideal point modeling nor to consider other conceptual frameworks, such as preference unfolding [2] in this manual.

Notes:

"ASTM Stock Number: MNL11481M".

Includes bibliographical references 43.

Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2009. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.

Description based on publisher's website, viewed May 03, 2017.

ISBN:

9780803167391 (e-ISBN)

9780803170100

0803170106

Access Restriction:

Restricted for use by site license.