Project measure / variable:   Jentsch2   infusions1_FR1

ID, description, units MPD:49702   infusions1_FR1   Fixed ratio 1 - self administration: number of infusions earned   [n]  day 1  
cocaine study
Data set, strains Jentsch2   BXD   4 strains     sex: both     age: 8-17wks
Procedure operant conditioning chamber
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  STRAIN COMPARISON PLOT
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Jentsch2 - Fixed ratio 1 - self administration: number of infusions earned day 1



  MEASURE SUMMARY
Measure Summary FemaleMale
Number of strains tested2 strains4 strains
Mean of the strain means7.96   n 4.11   n
Median of the strain means7.96   n 3.58   n
SD of the strain means± 9.24 ± 2.08
Coefficient of variation (CV)1.16 0.505
Min–max range of strain means1.43   –   14.5   n 2.36   –   6.93   n
Mean sample size per strain4.5   mice 10.5   mice


  ANOVA, Q-Q NORMALITY ASSESSMENT
ANOVA summary      
FactorDFSum of squaresMean sum of squaresF valuep value (Pr>F)
sex 1 21.4074 21.4074 1.6968 0.2056
strain 1 99.5661 99.5661 7.8918 0.01
sex:strain 1 166.6997 166.6997 13.2129 0.0014
Residuals 23 290.1786 12.6165


Q-Q normality assessment based on residuals

  


  STRAIN MEANS (UNADJUSTED)
  
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Strain Sex Mean SD N mice SEM CV Min, Max Z score
BXD31/TyJ m 4.4 5.19   10 1.64 1.18 0.14
BXD38/TyJ f 1.43 0.976   7 0.369 0.683 -0.71
BXD38/TyJ m 2.36 3.2   14 0.856 1.36 -0.84
BXD42/TyJ m 6.93 4.07   14 1.09 0.587 1.0, 18.0 1.36
BXD68/RwwJ f 14.5 12.0   2   8.5 0.829 6.0, 23.0 0.71
BXD68/RwwJ m 2.75 1.5   4 0.75 0.545 1.0, 4.0 -0.65


  LEAST SQUARES MEANS (MODEL-ADJUSTED)
Strain Sex Mean SEM UpperCL LowerCL
BXD38/TyJ f 1.4286 1.3425 4.2058 0.0
BXD38/TyJ m 2.3571 0.9493 4.3209 0.3934
BXD68/RwwJ f 14.5 2.5116 19.6957 9.3043
BXD68/RwwJ m 2.75 1.776 6.4239 0.0


  LEAST SQUARES MEANS (MODEL-ADJUSTED), SEXES COMBINED
Strain Sex Mean SEM UpperCL LowerCL
BXD38/TyJ both 1.8929 0.8221 3.5935 0.1922
BXD68/RwwJ both 8.625 1.538 11.8067 5.4433




GWAS analysis not available: SNP data is not available for enough strains (at least 4)