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Project measure / variable:   Jentsch2   infusions1_FR2

ID, description, units MPD:49714   infusions1_FR2   Fixed ratio 2 - 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 2 - self administration: number of infusions earned day 1



  MEASURE SUMMARY
Measure Summary FemaleMale
Number of strains tested2 strains4 strains
Mean of the strain means30.0   n 29.6   n
Median of the strain means30.0   n 31.4   n
SD of the strain means± 4.24 ± 9.02
Coefficient of variation (CV)0.141 0.305
Min–max range of strain means27.0   –   33.0   n 17.9   –   37.5   n
Mean sample size per strain4.5   mice 8.0   mice


  ANOVA, Q-Q NORMALITY ASSESSMENT
ANOVA summary      
FactorDFSum of squaresMean sum of squaresF valuep value (Pr>F)
sex 1 16.5497 16.5497 0.5385 0.472
strain 1 345.5293 345.5293 11.2435 0.0033
sex:strain 1 19.4993 19.4993 0.6345 0.4355
Residuals 19 583.9 30.7316


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 17.9 4.98   7 1.88 0.279 11.0, 24.0 -1.29
BXD38/TyJ f 27.0 5.16   7 1.95 0.191 18.0, 33.0 -0.71
BXD38/TyJ m 27.1 5.22   10 1.65 0.192 20.0, 35.0 -0.27
BXD42/TyJ m 35.8 5.25   11 1.58 0.147 27.0, 44.0 0.69
BXD68/RwwJ f 33.0 11.3   2   8.0 0.343 25.0, 41.0 0.71
BXD68/RwwJ m 37.5 4.12   4 2.06 0.11 34.0, 42.0 0.88


  LEAST SQUARES MEANS (MODEL-ADJUSTED)
Strain Sex Mean SEM UpperCL LowerCL
BXD38/TyJ f 27.0 2.0953 31.3855 22.6145
BXD38/TyJ m 27.1 1.753 30.7692 23.4308
BXD68/RwwJ f 33.0 3.9199 41.2045 24.7955
BXD68/RwwJ m 37.5 2.7718 43.3015 31.6985


  LEAST SQUARES MEANS (MODEL-ADJUSTED), SEXES COMBINED
Strain Sex Mean SEM UpperCL LowerCL
BXD38/TyJ both 27.05 1.366 29.909 24.191
BXD68/RwwJ both 35.25 2.4005 40.2742 30.2258




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