Sentence examples for by the standardized difference from inspiring English sources

After propensity score matching, the success of the propensity score modeling was assessed by the standardized difference, and the balance of the two groups was evaluated using Student's t test for continuous variables and the chi-square test or Fisher's exact test for categorical variables.

Post-match balance was assessed by evaluating the standardized difference (std. diff).

Balance between exposed and unexposed subjects in propensity models is commonly assessed by using the standardized difference (16).

After matching, we test whether the two groups are balanced with respect to the covariates using equality of means in the treated and non-treated groups, which is similar to the standardized difference test used by, for example, Smith and Todd ([2005]).

In this case the standardized difference is given by the following equation: where p1 and p2 are the proportions in the two groups and = (p1 + p2)/2 is the mean of the two values.

Cohen's d is the standardized difference between the two means divided by the pooled standard deviation at post-test.

For continuous variables, we calculated the standardized difference in means as the difference of means divided by the pooled standard deviation: (m2 - m1)/SD.

The total sample size required to detect the standardized difference with the required power is obtained by drawing a straight line between the power on the right-hand axis and the standardized difference on the left-hand axis.

The standardized difference was calculated for each covariate.

The standardized difference equaled δ/σ = 10/15 = 0.67.

The standardized difference between the groups is defined as the difference in the means between the two surveys and scaled by the overall standard deviation.