Sentence examples for matched control sample from inspiring English sources

For each firm in the treatment group, we select one firm in the control group with the closest propensity score, and both these firms constitute the propensity-score matched control sample.

Using a difference-in-differences design, we find that, relative to a matched control sample of non-users, analysts׳ earnings forecasts for new derivatives users are less accurate and more dispersed after derivatives initiation.

We analyze the universe of peer-reviewed scientific articles retracted from the biomedical literature between 1972 2006 and comparing with a matched control sample in order to identify the correlates, timing, and causal impact of scientific retractions.

Further, we find no change in ERCs for a propensity-score matched control sample that did not receive GCMs, suggesting that the decline in earnings informativeness is not a response to general economic conditions.

Preliminary studies of robotics programs have shown them to be more effective at involving girls in science and engineering, with some reports showing that girls who were involved in robotics programs are almost twice as likely to enroll in a STEM-related major in college as students in a matched control sample.

The current study describes a prospective follow up of a large cohort of individuals with court-documented early childhood abuse or neglect (n = 458) and a demographically matched control sample (n = 349) into middle adulthood (mean age 41), nearly 30 years later, comparing the groups for risk of adult pain complaints.

In CNAG, the tumor samples were compared in silico to the 6 best matched control samples (lowest standard deviation) available among a set of non-matched healthy individuals.

Four experiments were performed: (1) the study samples were compared with matched control samples; (2) the study samples were compared with nonmatched control samples; (3) the study samples were compared with themselves; and (4) the matched and nonmatched control samples were compared.

Study Design: Eleven serum and six amniotic fluid samples previously collected and stored at −20°C from gravid women carrying a 47,XY,+21 fetus were each paired with five matched control samples of identical specimen type from gravid women carrying a presumed euploid male fetus.

For ΔT2 calculation, T2 differences were calculated between magnetically labeled and cell-number matched control samples.

Of the 113 samples, 10 breast cancer samples and 10 matched control samples were used for the discovery phase.