quoth Robin boldly, "this is the worst matched pair
that ever mine eyes beheld
Two-sample t-test is used when the data of two samples are statistically independent, while the paired t-test is used when data is in the form of matched pairs
ABB says as one of the only companies manufacturing both variable-speed drives (VSDs) and low voltage AC motors, it is able to offer customers perfectly designed, tested and approved matched pairs
The physical and cognitive development was compared among the matched pairs
to determine the effect, if any, of the cancer and its treatment.
54) Four matched pairs
of American and German call centres are investigated.
I have two piles in my dresser drawer, one with matched pairs
, the other with what I call "loners.
Other researchers (and the authors) have not been able to reproduce the findings when using HA and NA matched pairs
from viruses chosen on the basis of geography and time and correctly have pointed out errors in the data set that make the original conclusions invalid.
The present paper describes the recruitment and site selection process that has been underway since January 2011, with particular emphasis on the use of Mahalanobis distance score to determine matched pairs
of sites prior to randomization to treatment and control groups.
Researchers randomly assigned treatment within 74 matched pairs
of communities, representing more than 118,000 households in seven Mexican states, and measured outcomes in a baseline survey and a follow-up survey 10 months later in 50 of the pairs.
The Restaurant Opportunities Center of New York spent the last two years canvassing restaurants, setting up focus groups and sending 43 matched pairs
of Florida) provides and introduction to the most important methods of performing categorical data analysis, covering contingency tables, generalized linear models, logistic regression, building and applying logistic regression models, multicategory logit models, loglinear models for contingency tables, models for matched pairs
, modeling co-related or clustered responses, random effects in generalized linear mixed models and an historical tour of categorical data analysis.
For our current study, we randomly selected 2 subsets of samples from the large cohort of men who were not registered with a diagnosis of PCa until that date: 125 matched pairs
of plasma and serum samples for comparison of long-term storage effects and 524 plasma samples from participants (mean age, 55 years at the time of venipuncture) age-matched with controls from Goteborg from whom contemporary serum samples were obtained for PSA measurements.