Completely Unacceptable Levels in Conjoint Analysis: A Cautionary Note

1988 ◽  
Vol 25 (3) ◽  
pp. 293-300 ◽  
Author(s):  
Paul E. Green ◽  
Abba M. Krieger ◽  
Pradeep Bansal
Keyword(s):  
Conjoint Analysis ◽  
Predictive Validity ◽  
Cautionary Note ◽  
Theoretical Terms ◽  
Full Profile ◽  
Attribute Levels ◽  
The Impact

An experiment is reported on the extent to which respondents adhere to the implications of choosing the “completely unacceptable” level in hybrid conjoint (and related) applications. The findings indicate that the form of the instructions matters, but that respondents often ignore the implications of previous responses when responding to full-profile options containing unacceptable attribute levels. The authors discuss the impact of this inconsistency on internal predictive validity in both empirical and theoretical terms.

Improving Predictive Power of Conjoint Analysis by Constrained Parameter Estimation

1983 ◽  
Vol 20 (4) ◽  
pp. 433-438 ◽  
Author(s):  
V. Srinivasan ◽  
Arun K. Jain ◽  
Naresh K. Malhotra
Keyword(s):  
Parameter Estimation ◽  
Conjoint Analysis ◽  
Predictive Validity ◽  
Predictive Power ◽  
A Priori ◽  
A Priori Knowledge ◽  
Constrained Estimation ◽  
First Choice ◽  
Full Profile ◽  
Different Levels

The prediction of first choice preferences by the full-profile method of conjoint analysis can be improved significantly by imposing constraints on parameters based on a priori knowledge of the ordering of part worths for different levels of an attribute. Constrained estimation however, has little effect on the predictive validity of the tradeoff method because the preference judgments within rows (or columns) of tradeoff tables have largely the same role as the constraints.

Surprising Robustness of the Self-Explicated Approach to Customer Preference Structure Measurement

1997 ◽  
Vol 34 (2) ◽  
pp. 286-291 ◽  
Author(s):  
V. Srinivasan ◽  
Chan Su Park
Keyword(s):  
Utility Function ◽  
Conjoint Analysis ◽  
Predictive Validity ◽  
The Self ◽  
Preference Structure ◽  
Combined Approach ◽  
Customer Preference ◽  
Full Profile ◽  
Structure Measurement

The authors introduce customized conjoint analysis, which combines self-explicated preference structure measurement with full-profile conjoint analysis. The more important attributes for each respondent are identified first using the self-explicated approach. Full-profile conjoint analysis customized to the respondent's most important attributes then is administered. The conjoint utility function on the limited set of attributes then is combined with the self-explicated utility function on the full set of attributes. Surprisingly, the authors find that the self-explicated approach by itself yields a slightly (but not statistically significantly) higher predictive validity than does the combined approach.

We Know Exactly what you want: The Development of a Completely Individualised Conjoint Analysis

2013 ◽  
Vol 55 (3) ◽  
pp. 437-458 ◽  
Author(s):  
Markus Voeth ◽  
Uta Herbst ◽  
Frank Liess
Keyword(s):  
Data Collection ◽  
Empirical Study ◽  
Conjoint Analysis ◽  
Predictive Validity ◽  
Important Research ◽  
New Approach ◽  
Preference Modelling ◽  
Attribute Levels ◽  
Product Presentation ◽  
Modelling Data

Improving the predictive validity of conjoint analysis has been an important research objective for many years. Whereas the majority of attempts have been different approaches to preference modelling, data collection or product presentation, only a few scholars have tried to improve predictive validity by individualising conjoint designs. This comes as a surprise because many markets have observed an augmented demand for customised products and highly heterogeneous customers' preferences. Against this background, the authors develop a conjoint variant based on a completely individualised conjoint design. More concretely, the new approach not only individualises the attributes, but also the attribute levels. The results of a comprehensive empirical study yield a significantly higher validity than existing standardised-level conjoint approaches. Consequently, they help marketers to gain deeper insights into their customers' preferences.

scholarly journals Measuring frailty in younger populations: a rapid review of evidence

BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e047051
Author(s):  
Gemma F Spiers ◽  
Tafadzwa Patience Kunonga ◽  
Alex Hall ◽  
Fiona Beyer ◽  
Elisabeth Boulton ◽  
...  
Keyword(s):  
Patient Outcomes ◽  
Predictive Validity ◽  
Data Extraction ◽  
Grey Literature ◽  
Frailty Index ◽  
Study Data ◽  
Rapid Review ◽  
Eligibility Criteria ◽  
Adult Age ◽  
The Impact

ObjectivesFrailty is typically assessed in older populations. Identifying frailty in adults aged under 60 years may also have value, if it supports the delivery of timely care. We sought to identify how frailty is measured in younger populations, including evidence of the impact on patient outcomes and care.DesignA rapid review of primary studies was conducted.Data sourcesFour databases, three sources of grey literature and reference lists of systematic reviews were searched in March 2020.Eligibility criteriaEligible studies measured frailty in populations aged under 60 years using experimental or observational designs, published after 2000 in English.Data extraction and synthesisRecords were screened against review criteria. Study data were extracted with 20% of records checked for accuracy by a second researcher. Data were synthesised using a narrative approach.ResultsWe identified 268 studies that measured frailty in samples that included people aged under 60 years. Of these, 85 studies reported evidence about measure validity. No measures were identified that were designed and validated to identify frailty exclusively in younger groups. However, in populations that included people aged over and under 60 years, cumulative deficit frailty indices, phenotype measures, the FRAIL Scale, the Liver Frailty Index and the Short Physical Performance Battery all demonstrated predictive validity for mortality and/or hospital admission. Evidence of criterion validity was rare. The extent to which measures possess validity across the younger adult age (18–59 years) spectrum was unclear. There was no evidence about the impact of measuring frailty in younger populations on patient outcomes and care.ConclusionsLimited evidence suggests that frailty measures have predictive validity in younger populations. Further research is needed to clarify the validity of measures across the adult age spectrum, and explore the utility of measuring frailty in younger groups.

The Impact of Utility Balance and Endogeneity in Conjoint Analysis

2005 ◽  
Vol 24 (3) ◽  
pp. 498-507 ◽  
Author(s):  
John R. Hauser ◽  
Olivier Toubia
Keyword(s):  
Conjoint Analysis ◽  
The Impact

Pairwise Conjoint Analysis of Activity Engagement Choice

10.1068/a3267 ◽  
2000 ◽  
Vol 32 (5) ◽  
pp. 805-816 ◽  
Author(s):  
Donggen Wang ◽  
Harmen Oppewal ◽  
Harry Timmermans
Keyword(s):  
Conjoint Analysis ◽  
Information Overload ◽  
Design Strategy ◽  
Choice Models ◽  
New Approach ◽  
Activity Engagement ◽  
Conjoint Choice ◽  
Attribute Levels ◽  
Preference Models ◽  
Modelling Approach

Information overload is a well-known problem of conjoint choice models when respondents have to evaluate a large number of attributes and/or attribute levels. In this paper we develop an alternative conjoint modelling approach, called pairwise conjoint analysis. It differs from conventional conjoint choice and preference models in that the attributes of choice alternatives or choice contexts are not varied simultaneously, but in pairs. Properties of the design strategy are discussed. The new approach is illustrated by using activity engagement choice as an example.

scholarly journals Theoretical reflection on the impact of globalization processes on civil rights

2015 ◽  
Vol 16 (SE) ◽  
pp. 309-326
Author(s):  
Ehsan Madmalil ◽  
Fereydoun Akbarzadeh
Keyword(s):  
Political Philosophy ◽  
Civil Rights ◽  
Western Europe ◽  
Modern Human ◽  
Modern Theory ◽  
Political Rights ◽  
Theoretical Terms ◽  
Contemporary World ◽  
The Right ◽  
The Impact

The concept of citizenship is one of the old key concepts in political philosophy that has been reproduced in various forms since the formation of classical political philosophy up to modern times within the theory set forth in this type of theoretical philosophy. So, pre-modern theory, modern theory and postmodern theory can be noted. The concept of citizenship is an idea which governs the right of modern human and was emerged in the Western Europe and is a product of modern politics. Accepting Legal and political rights and duties is raised by citizenship status, its main foundation and the basic idea of the concept. In the contemporary world, citizenship has been interested more than other societies. The question that comes to mind here is that how is the situation of civil rights in the era of theoretical terms in globalization? In response to the question hypothesis is that with globalization, citizenship in its modern form that was enclosed in the geography of the national government has lost its sense and civil rights embodied in the discourses that are outside the reach of state law. This study aimed to investigate the impact of globalization on the civil right and conceptual evolution theoretically, as contemporary theorists have theorized it. Research findings indicate the "global citizenship" as a concept is emerging in the era of globalization as the result of rethinking of citizenship in the modern age. The methodology of study is analysis - descriptive, this means that the concept of civil right is described and then the theoretical changes in the era of globalization will be analyzed.

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