A COMPARISON OF METHODOLOGIES FOR UNCOVERING THE STRUCTURE OF RACIAL STEREOTYPE SUBGROUPING

2002 ◽  
Vol 30 (7) ◽  
pp. 709-727 ◽  
Author(s):  
Raymond J. Green ◽  
Robert Manzi

Our goal was to initiate a series of explorations of the techniques used to investigate person perception and stereotypes. More specifically, do different techniques uncover the same, and assumedly correct, underlying cognitive structure of the perceivers or is our current understanding of social cognition merely a reflection of our data collection and analytic techniques? We also hoped to draw some conclusions concerning White participants' perceptions of Blacks. Participants were given two tasks. One task involved sorting fourteen racial type labels and rating the sorted piles on four scales (e.g., respectable-not respectable). The second task involved generating attributes that described a randomly selected racial type. Both tasks provided data that could be used as input for multidimensional-scaling and hierarchical-clustering analyses. Further, the data from the adjective-generation task was used as input for a discriminant-function analysis. It was predicted that the different data collection and analysis tasks would produce results that emphasized the importance of evaluation in racialtype perception but that the sorting task would reveal more prejudice against Black targets. The results supported the hypotheses.

2020 ◽  
Vol 7 (9) ◽  
pp. 200793
Author(s):  
Fumiya Yonemitsu ◽  
Ayumi Ikeda ◽  
Naoto Yoshimura ◽  
Kaito Takashima ◽  
Yuki Mori ◽  
...  

The coronavirus disease 2019 (COVID-19) outbreak is threatening not only health but also life worldwide. It is important to encourage citizens to voluntarily practise infection-prevention (IP) behaviours such as social distancing and self-restraint. Previous research on social cognition suggested that emphasizing self-identity is key to changing a person's behaviour. The present study investigated whether reminders that highlight self-identity would be effective in changing intention and behaviour related to the COVID-19 outbreak, and hypothesized that those who read reminders highlighting self-identity (Don't be a spreader) would change IP intention and behaviour better than those who read ‘Don't spread’ or no reminder. We conducted a two-wave survey of the same participants with a one-week interval, during which we assigned one of three reminder conditions to the participants: ‘Don't spread’ (spreading condition), ‘Don't be a spreader’ (spreader condition) and no reminder (control condition). Participants marked their responses to IP intentions and actual behaviours each week based on the Japanese Ministry of Health, Labour and Welfare guidelines. While the results did not show significant differences between the conditions, the post hoc analyses showed significant equivalence in either IP intentions or behavioural scores. We discussed the results from the perspective of the effect size, ceiling effects and ways of manipulation checks as future methods with more effective persuasive messaging. Following in-principle acceptance, the approved Stage 1 version of this manuscript was pre-registered on the OSF at https://doi.org/10.17605/OSF.IO/KZ5Y4. This pre-registration was performed prior to data collection and analysis.


2020 ◽  
Author(s):  
Fumiya Yonemitsu ◽  
Ayumi Ikeda ◽  
Naoto Yoshimura ◽  
Kaito Takashima ◽  
Yuki Mori ◽  
...  

The coronavirus disease 2019 (COVID-19) outbreak is threatening not only health but also life worldwide. It is important to encourage citizens to voluntarily practise infection prevention (IP) behaviours such as social distancing and self-restraint. Previous research on social cognition suggested that emphasising self-identity is key to changing a person’s behaviour. The present study investigated whether reminders that highlight self-identity would be effective in changing intention and behaviour related to the COVID-19 outbreak, and hypothesised that those who read reminders highlighting self-identity (‘Don’t be a spreader’) would change IP intention and behaviour better than those who read ‘Don’t spread’ or no reminder. We conducted a two-wave survey of the same participants with a one-week interval, during which we assigned one of three reminder conditions to the participants: ‘Don’t spread’ (spreading condition), ‘Don’t be a spreader’ (spreader condition), and no reminder (control condition). Participants marked their responses to IP intentions and actual behaviours each week based on the Japanese Ministry of Health, Labour, and Welfare guidelines. While the results did not show significant differences between the conditions, the post-hoc analyses showed significant equivalence in either IP intentions or behavioural scores. We discussed the results from the perspective of the effect size, ceiling effects, and ways of manipulation checks as future methods with more effective persuasive messaging. Following in-principle acceptance, the approved Stage 1 version of this manuscript was preregistered on the OSF at https://doi.org/10.17605/OSF.IO/KZ5Y4. This preregistration was performed prior to data collection and analysis.


1980 ◽  
Vol 19 (04) ◽  
pp. 205-209
Author(s):  
L. A. Abbott ◽  
J. B. Mitton

Data taken from the blood of 262 patients diagnosed for malabsorption, elective cholecystectomy, acute cholecystitis, infectious hepatitis, liver cirrhosis, or chronic renal disease were analyzed with three numerical taxonomy (NT) methods : cluster analysis, principal components analysis, and discriminant function analysis. Principal components analysis revealed discrete clusters of patients suffering from chronic renal disease, liver cirrhosis, and infectious hepatitis, which could be displayed by NT clustering as well as by plotting, but other disease groups were poorly defined. Sharper resolution of the same disease groups was attained by discriminant function analysis.


2020 ◽  
Vol 36 (6) ◽  
pp. 666-672
Author(s):  
Linda L. Costa ◽  
Debra Bingham ◽  
Carla L. Storr ◽  
Margaret Hammersla ◽  
Jeffrey Martin ◽  
...  

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