Multivariate Matching Methods That are Equal Percent Bias Reducing, II: Maximums on Bias Reduction for Fixed Sample Sizes

Biometrics ◽  
1976 ◽  
Vol 32 (1) ◽  
pp. 121 ◽  
Author(s):  
Donald B. Rubin
Keyword(s):  
Bias Reduction ◽  
Sample Sizes ◽  
Matching Methods ◽  
Fixed Sample

Comparison of experimental assessment methods to estimate the strength of gear teeth

1999 ◽  
Vol 213 (3) ◽  
pp. 291-301
Author(s):  
A Ahmad-Shariff ◽  
R Ashby ◽  
A. V. Metcalfe ◽  
D. C. Swailes
Keyword(s):  
Assessment Methods ◽  
Logit Analysis ◽  
Sample Sizes ◽  
Experimental Assessment ◽  
British Standard ◽  
Gear Teeth ◽  
Fixed Sample ◽  
Recommendations For Practice ◽  
Experimental Strategies

Regression type methods for analysing proportions, known as probit and logit analyses, are compared with the British Standard BS 3518 (part 5) recommendations for analysis of staircase designs. All these methods are found to give similar results. Different experimental strategies, involving fixed sample sizes for load levels chosen in advance, are compared with staircase designs. Recommendations for practice are made. Finally, the versatility of the logit analysis for investigating the effects of additional variables, such as additional treatments during manufacture, is demonstrated through a case study.

Is Red Really Romantic?

2017 ◽  
Vol 48 (3) ◽  
pp. 174-183 ◽  
Author(s):  
Gabrielle K. Lehmann ◽  
Robert J. Calin-Jageman
Keyword(s):  
Opposite Direction ◽  
Positive Control ◽  
Weak Effect ◽  
Sample Sizes ◽  
Quality Controls

Abstract. Red has been reported to enhance attraction for women rating men ( Elliot et al., 2010 ) and men rating women ( Elliot & Niesta, 2008 ). We replicated one of these studies online and in-person. To ensure rigor, we obtained original materials, planned for informative sample sizes, pre-registered our study, used a positive control, and adopted quality controls. For men, we found a very weak effect in the predicted direction (d = 0.09, 95% CI [−0.17, 0.34], N = 242). For women, we found a very weak effect in the opposite direction (d = −0.09, 95% CI [−0.30, 0.12], N = 360). The original studies may have overestimated the red effect, our studies may be an underestimate, or there could be strong moderation of the effect of red on attraction.

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