Multiple comparison among groups of growth curves.
نویسندگان
چکیده
The problem of comparing a sequence of independent experiments divided into several groups with a control is discussed under the logistic growth-curve models. We propose a method for constructing multiple testing procedures using the closed testing procedures and the random-effect model for summarizing estimated values of parameters.
منابع مشابه
Fetal Growth Curve in Neonates in Alzahra Hospital in Rasht
ABSTRACT Evaluation of intrauterine growth and determination of at risk neonates was done by weight criteria for each pregnancy age. This criteria in different populations is not similar. Main objective of this study was determination of intrauterine growth pattern in this region. Weights of 2380 term neonates and 788 preterm neonates that had a definite LMP and were born at Alzahra hospital i...
متن کاملComparison of Some Nonlinear Functions for Describing Broiler Growth Curves of Cobb500 Strain
This study was conducted to compare some nonlinear functions to describe the broiler growth curve of the Cobb500 strain. A flock of fifty one-day-old chicks were randomly selected from a henhouse of 2500 chicks. Our goal was to establish a growth curve using weighting data using mathematical solutions of time-dependent differential functions. In total, six equations were subjected to a statisti...
متن کاملComparison of ocular component growth curves among refractive error groups in children.
PURPOSE To compare ocular component growth curves among four refractive error groups in children. methods Cycloplegic refractive error was categorized into four groups: persistent emmetropia between -0.25 and +1.00 D (exclusive) in both the vertical and horizontal meridians on all study visits (n = 194); myopia of at least -0.75 D in both meridians on at least one visit (n = 247); persistent hy...
متن کاملMultiple curve comparisons with an application to the formation of the dorsal funiculus of mutant mice.
Much biological experimental data are represented as curves, including measurements of growth, hormone, or enzyme levels, and physical structures. Here we consider the multiple testing problem of comparing two or more nonlinear curves. We model smooth curves of unknown form nonparametrically using penalized splines. We use random effects to model subject-specific deviations from the group-level...
متن کاملa Comparison Study Between the Joint Probability Approach and Time Series Rainfall Modelling in Coastal Detention Pond Analysis (RESEARCH NOTE)
In tidally affected coastal catchments detention pond should be provided to store flood surface water. A comparison between the full simulation approach based on the joint probability method and time series rainfall modeling via the annual maximum of pond level was undertaken to investigate the assumptions of independence between variables that are necessary in the joint probability method. The...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Environmental Health Perspectives
دوره 102 شماره
صفحات -
تاریخ انتشار 1994