Results 1 to 10 of about 3,681,265 (301)

On the construction of balanced repeated measurements designs with good circular properties

open access: yesStatistical Theory and Related Fields, 2023
Several fields, such as biological, medical, public health, agricultural sciences, etc., require circular balanced repeated measurement designs with fewer unequal number of repeated measurements than the number of treatments.
Muhammad Daniyal   +2 more
doaj   +2 more sources

Optimal Repeated Measurements for Two Treatment Designs with Dependent Observations: The Case of Compound Symmetry

open access: yesMathematics, 2019
In this paper, we construct optimal repeated measurement designs of two treatments for estimating direct effects, and we examine the case of compound symmetry dependency.
Miltiadis S. Chalikias
doaj   +3 more sources

Balanced Repeated Measurements Designs

open access: yesAnnals of Statistics, 1980
Two types of repeated measurements designs (RMD), the strongly balanced uniform RMD, and the balanced uniform RMD, are defined and their universal optimality is proved over very broad classes of competing designs. Construction methods for strongly balanced uniform RMD are also given.
Ching-Shui Cheng
exaly   +3 more sources

Biomechanical Evaluation of Force Loss and Simulated Tooth Movement in Maxillary Orthodontic Mesial Sliders: An In Vitro Pilot Study [PDF]

open access: yesBioengineering
Skeletal-anchored mesial sliders are increasingly used for molar mesialization, yet their mechanical behavior has not been compared under standardized conditions.
Carolien A. J. Scheurer   +7 more
doaj   +2 more sources

Optimal Designs for Direct Effects: The Case of Two Treatments and Five Periods

open access: yesMathematics, 2023
Cross-Over Designs or Repeated Measurements Designs are experimental designs in which treatments (e.g., medicines, fertilizers, diets) are applied to experimental units (usually humans) in different time periods.
Miltiadis S. Chalikias
doaj   +1 more source

Effect of six different autorefractor designs on the precision and accuracy of refractive error measurement

open access: yesPLoS ONE, 2022
Purpose To evaluate the precision of objective refraction measurements with six different autorefractors that have different designs and measurement principles and to compare the objective refraction values with the subjective refraction.
Abinaya Priya Venkataraman   +2 more
doaj   +2 more sources

Repeated Measurements Designs. II. [PDF]

open access: yesThe Annals of Statistics, 1977
Abstract : Repeated measurements designs are concerned with scientific experiments in which subjects (experimental units) are repeatedly exposed to a sequence of different or identical tests (treatments). These designs have application in many branches of scientific inquiry such as: Biology, education, food science, marketing, environmental engineering,
Hedayat, A., Afsarinejad, K.
openaire   +2 more sources

Ultra-brief Assessment of Working Memory Capacity: Ambulatory Assessment Study Using Smartphones

open access: yesJMIR Formative Research, 2023
BackgroundThe development of mobile technology with substantial computing power (ie, smartphones) has enabled the adaptation of performance-based cognitive assessments to remote administration and novel intensive longitudinal ...
Jonathan G Hakun   +3 more
doaj   +1 more source

An Ultra-Short Measure of Positive and Negative Affect: The Reduced Affective Well-Being Scale (RAWS) [PDF]

open access: yesRevista Psicologia, 2020
In applied organizational research, where economy of scale is often a crucial factor in successful assessment, ultra-short measures are often needed. This study investigates the psychometric properties of the Reduced Affective Well-Being Scale (RAWS), an
Pia H. Kampf   +2 more
doaj   +1 more source

Research on 3D-image Based Size Measurement Algorithm of Locomotive Brake Shoe for Locomotive Robot

open access: yesKongzhi Yu Xinxi Jishu, 2022
The environment of operation and maintenance of locomotives and rolling stocks is complex. Factors such as dust and reflection make point cloud missing, noise and false points, which seriously affect the accuracy of locomotive robot brake shoe image ...
SHEN Yunbo   +6 more
doaj   +3 more sources

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