Market Share Predictions: A New Model with Rating-Based Conjoint Analysis

2011 ◽  
Vol 53 (6) ◽  
pp. 831-857 ◽  
Author(s):  
Hervé Guyon ◽  
Jean-François Petiot
Keyword(s):  
Conjoint Analysis ◽  
Market Share ◽  
Probabilistic Models ◽  
Rating Scales ◽  
Rating Scale ◽  
New Model ◽  
Generic Term ◽  
Experimental Protocols ◽  
Estimation Models

Conjoint Analysis (CA) is a technique heavily used by industry in support of product development, pricing and positioning, and market share predictions. This generic term CA encompasses a variety of experimental protocols and estimation models (e.g. rating-based or choice-based), as well as several probabilistic models for predicting market share. As for the rating conjoint, existing probabilistic models from the literature cannot be considered as reliable because they suffer from the Independence of Irrelevant Alternatives (IIA) property, in addition to depending on an arbitrary rating scale selected by the experimenter. In this article, after a brief overview of CA and of models used for market share predictions, we propose a new model for market share predictions, RFC-BOLSE, which avoids the IIA problem, yields convergent results for different rating scales, and outputs predictions that match regression reliability. The model is described in details and simulations and a case study on truck tyres will illustrate the reliability of RFC-BOLSE.

AAC Collaboration Using the Self-Anchored Rating Scales (SARS): An Aphasia Case Study

2012 ◽  
Vol 21 (4) ◽  
pp. 136-143
Author(s):  
Lynn E. Fox
Keyword(s):  
Augmentative And Alternative Communication ◽  
Rating Scales ◽  
Rating Scale ◽  
Therapeutic Process ◽  
Family Counseling ◽  
The Self ◽  
Alternative Communication ◽  
Her Family ◽  
Solution Focused

Abstract The self-anchored rating scale (SARS) is a technique that augments collaboration between Augmentative and Alternative Communication (AAC) interventionists, their clients, and their clients' support networks. SARS is a technique used in Solution-Focused Brief Therapy, a branch of systemic family counseling. It has been applied to treating speech and language disorders across the life span, and recent case studies show it has promise for promoting adoption and long-term use of high and low tech AAC. I will describe 2 key principles of solution-focused therapy and present 7 steps in the SARS process that illustrate how clinicians can use the SARS to involve a person with aphasia and his or her family in all aspects of the therapeutic process. I will use a case study to illustrate the SARS process and present outcomes for one individual living with aphasia.

scholarly journals Beyond the mask of deference: exploring the relationship between ruptures and transference in a single-case study

2016 ◽  
Vol 19 (2) ◽  
Author(s):  
Francesca Locati ◽  
Pietro De Carli ◽  
Emanuele Tarasconi ◽  
Margherita Lang ◽  
Laura Parolin
Keyword(s):  
Sequential Analysis ◽  
Rating Scales ◽  
Rating Scale ◽  
Defense Mechanism ◽  
Single Case ◽  
Assessment Procedure ◽  
Single Case Study ◽  
Alliance Ruptures ◽  
The Relationship

The relationship between transference and therapeutic alliance has been long discussed. It is only recently, however, that empirical evidence has provided support for a tight correspondence between several transference dimensions and rupture and resolution processes. In the present single-case study, we used alliance ruptures as a key dimension to understand patient’s transference dynamics. This was achieved in a particular form of patient’s behavior, i.e., patient’s deference and acquiescent behavior, which describes a significant submission to assertions, skills, judgments and point of views of another person. Therapeutic process was measured by means of the Rupture Resolution Rating Scale, the Core Conflictual Relationship Theme and the Defense Mechanism Rating Scales, whereas therapeutic outcome was measured by means of the Shedler-Westen Assessment Procedure-200. Results of sequential analysis yielded a significant correspondence between rupture markers, characterized by avoidance and shifting of session’s topic, and patient’s narrations. Furthermore, a systematic correspondence between alliance ruptures and patient’s avoidant functioning, which emerged both in transference relationship and in the quality of the defense structure, was found. Together, these findings indicate that patient’s deference inhibits the expression of relational themes, with ruptures in alliance that seem to be supported by a strong defensive structure. In particular, patient’s avoidance played a double role in the treatment. On the one hand, avoidance was the main characteristic of her transference structure, based on extreme intellectualization and emotional closure. On the other hand, it contributed to create an impasse in the treatment, based on a withdrawal ruptures model and on obsessive level defences.

scholarly journals Necessity of initiating Rating Scale for more reliable assessment of writing skill at HSC level: a case study

IIUC Studies ◽  
2012 ◽  
Vol 6 ◽  
pp. 35-52 ◽  
Author(s):  
Mohammed Humayun Kabir
Keyword(s):  
Rating Scales ◽  
Rating Scale ◽  
Assessment Criteria ◽  
Reliable Assessment ◽  
Writing Skill ◽  
Selection Of

In this essay, firstly, I will discuss importance of rating scales, relationship between assessment criteria and operations and conditions and effectiveness of rating scales while assessing writing. Secondly, I will examine a selection of scales and subsequently there will be an estimation of those in meeting objectives of the tests and of the course. Finally, I will recommend a suitable rating scale to test English First paper and English Second Paper writing skill at HSC level in Bangladesh evaluating the existing one where I will mention steps to be taken to reduce inter and intra- rating fluctuation in scoring. DOI: http://dx.doi.org/10.3329/iiucs.v6i0.12247 IIUC Studies Vol.6 2010: 35-52

Comparison of Rating Scale, Time Tradeoff, and Conjoint Analysis Methods for Assessment of Preferences in Prostate Cancer

2019 ◽  
Vol 39 (7) ◽  
pp. 816-826 ◽  
Author(s):  
Robert M. Kaplan ◽  
Catherine M. Crespi ◽  
Ely Dahan ◽  
Josemanuel D. Saucedo ◽  
Casey Pagan ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
At Risk ◽  
Conjoint Analysis ◽  
Predictive Validity ◽  
Rating Scales ◽  
Rating Scale ◽  
Consumer Preference ◽  
Preference Assessment ◽  
Ease Of Use ◽  
Time Tradeoff

Background. Conjoint analysis is widely used in studies of consumer preference but has only recently been applied to measure patient utilities for health outcomes. We compared the reliability, feasibility, and internal and predictive validity of conjoint scaling methods against better established rating scale and time tradeoff methods for assessing prostate cancer utilities in men at risk for prostate cancer. Methods. In total, 194 men who were biopsy negative for prostate cancer were randomly assigned to complete 2 preference assessment modules, either conjoint analysis and a rating scale module or conjoint analysis and a time tradeoff module. Each participant’s most important attribute was identified and evaluated in relation to age group (age <65, age 65 and older), education (high school, some college, college graduate), race/ethnicity (white, black, Latino), and relationship status (in significant relationship v. not). The methods were also evaluated in terms of ease of use and satisfaction. Results. Rating scales were rated as easiest to use and respondents were more satisfied with rating scales and conjoint in comparison to time tradeoffs. Rating scales and conjoint measures demonstrated significantly higher internal validity compared to time tradeoff when evaluated through R2 of the fitted utility function. The 3 methods were similar in terms of predictive validity, but conjoint analysis outperformed the rating scale method when patients were presented with novel combinations of attribute levels (68% correct v. 43%, P = 0.003). Conclusions. Rating scales and conjoint analysis exercises offer greater ease of use and higher satisfaction when measuring patient preferences in men biopsied for prostate cancer in comparison to time tradeoff exercises. Conjoint analysis may be a more robust approach to preference measurement for men at risk for prostate cancer.

Childbirth and Posttraumatic Stress Responses

2006 ◽  
Vol 22 (4) ◽  
pp. 259-267 ◽  
Author(s):  
Eelco Olde ◽  
Rolf J. Kleber ◽  
Onno van der Hart ◽  
Victor J.M. Pop
Keyword(s):  
Posttraumatic Stress Disorder ◽  
Posttraumatic Stress ◽  
Stress Responses ◽  
Rating Scales ◽  
Rating Scale ◽  
Stress Disorder ◽  
Traumatic Experience ◽  
Event Scale ◽  
Self Rating ◽  
The Impact

Childbirth has been identified as a possible traumatic experience, leading to traumatic stress responses and even to the development of posttraumatic stress disorder (PTSD). The current study investigated the psychometric properties of the Dutch version of the Impact of Event Scale-Revised (IES-R) in a group of women who recently gave birth (N = 435). In addition, a comparison was made between the original IES and the IES-R. The scale showed high internal consistency (α = 0.88). Using confirmatory factor analysis no support was found for a three-factor structure of an intrusion, an avoidance, and a hyperarousal factor. Goodness of fit was only reasonable, even after fitting one intrusion item on the hyperarousal scale. The IES-R correlated significantly with scores on depression and anxiety self-rating scales, as well as with scores on a self-rating scale of posttraumatic stress disorder. Although the IES-R can be used for studying posttraumatic stress reactions in women who recently gave birth, the original IES proved to be a better instrument compared to the IES-R. It is concluded that adding the hyperarousal scale to the IES-R did not make the scale stronger.

D-test: A New Test for Analyzing Scale Invariance Using Symbolic Dynamics and Symbolic Entropy

Methodology ◽  
2011 ◽  
Vol 7 (3) ◽  
pp. 88-95 ◽  
Author(s):  
Jose A. Martínez ◽  
Manuel Ruiz Marín
Keyword(s):  
Symbolic Dynamics ◽  
Scale Invariance ◽  
Rating Scales ◽  
Rating Scale ◽  
Marketing Research ◽  
Response Patterns ◽  
Measurement Scales ◽  
Improve Measurement ◽  
Entropy Measures ◽  
The Difference

The aim of this study is to improve measurement in marketing research by constructing a new, simple, nonparametric, consistent, and powerful test to study scale invariance. The test is called D-test. D-test is constructed using symbolic dynamics and symbolic entropy as a measure of the difference between the response patterns which comes from two measurement scales. We also give a standard asymptotic distribution of our statistic. Given that the test is based on entropy measures, it avoids smoothed nonparametric estimation. We applied D-test to a real marketing research to study if scale invariance holds when measuring service quality in a sports service. We considered a free-scale as a reference scale and then we compared it with three widely used rating scales: Likert-type scale from 1 to 5 and from 1 to 7, and semantic-differential scale from −3 to +3. Scale invariance holds for the two latter scales. This test overcomes the shortcomings of other procedures for analyzing scale invariance; and it provides researchers a tool to decide the appropriate rating scale to study specific marketing problems, and how the results of prior studies can be questioned.

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