# standard error of difference

## stan·dard er·ror of dif·fer·ence

a statistical index of the probability that a difference between two sample means is greater than zero.

## stan·dard er·ror of dif·fer·ence

(stan'dărd er'ŏr dif'ĕr-ĕns)
A statistical index of the probability that a difference between two sample means is greater than zero.
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The mean difference in BP between the two groups was -2.76 mm Hg, with a standard error of difference 0.797 [Table 2].
The mean difference in BP between the two groups was -1.91 mm Hg, with a standard error of difference 0.941 [Table 4].
Cooking loss (g) 24.50 (b) 5.63 ** Change in Diameter (mm) 12.70 2.46 ns Change in Thickness (mm) -1.27 1.39 ns Shrinkage (%) 10.36 3.08 ns Sed = Standard Error of difference, Sig.= significance, Means in the same row with different superscripts are significant, ns = not Significant, ** = Significant (p < 0.01) Table 2: Cooking loss, changes in Diameters and Thicknesses of beef burgers after cooking Treatment T1 T2 T3 Cooking loss (g) 37.33 25.33 28.67 Change in diameter (mm) 15.86 (a) 10.84 (b) 11.43 (b) Change in thickness (mm) 0.48 -1.93 -0.73 Shrinkage (%) 14.09 (a) 8.30b 9.89a (b) Treatment T4 Sed Sig.
Estimates of Standard Error of Difference (SED) and Effective Significance Levels is appended.
Standard error of difference bands or point values were calculated to assess the number of points by which each scale could be considered significantly different from its adjacent scale (e.g., Encounter vs.
Three possibilities existed for each pair comparison: A scale can differ by less than one standard error of difference from its contiguous scale, the scale scores can be significantly different by one standard error of difference, or the two scale scores can differ by two standard errors or twice the point value.
Severity of asthma with BMI Intermittent Mild Mod Severe asthma persistent persistent Under weight 7 6 11 6 30 (23.33%) (20%) (36.67%) (20%) Normal weight 30 11 18 11 70 (42.86%) (15.71%) (25.71%) (15.71%) Over weight 4 2 8 18 32 (12.5%) (6.25%) (25%) (56.25%) Total 132 41 19 37 35 Then % FEV1 of expected of underweight group and that of overweight & obese group compared with normal weight group by using statistical test standard error of difference between two means.
Observed % FEV1 of expected The level of significance compare Mean BMI in kg Mean FEV1 +/- (S.D) to normal weight group +/- (S.D) Value of Z P value Under weight 70.57 +/- (13.78) 1.17 > 0.05 16.77 +/- (1.33) Normal weight 74.19 +/- (15.08) -- -- 21.6 +/- (1.8) Overweight & obese 60.125 +/- (17.28) 3.97 < 0.001 30.14 +/- (3.69) Over all 69.95 +/- (16.3) 22.57 +/- (5.24) Z = Standard error of difference between two means.
Where there were significant interactions between the main effects (age and sex), the standard error of difference, variances ratio and significance were recalculated.
Standard error of difference bands were then calculated to assess the number of points by which each subscale could be considered significantly different from its theoretically adjacent subscale (e.g., Reintegration from Pseudo-Independence).
Standard error of significance between means among mild and moderate is not significant except triglycerides where actual difference was more than twice the standard error of difference thus significant.
Significant BP lowering--as defined by a one-sided 95% confidence upper bound for the standard error of differences between study positions--was determined to be 5.86 and 6.22 mm Hg for systolic and diastolic pressures, respectively.
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