scholarly journals The association of patients' daily summarized self‐rated “real‐time” pain scores with physical recovery after major surgery – A repeated measurement design

Nursing Open ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 307-318
Author(s):  
Lotta Wikström ◽  
Mats Nilsson ◽  
Kerstin Eriksson
Keyword(s):  
Real Time ◽  
Repeated Measurement ◽  
Major Surgery ◽  
Repeated Measurement Design ◽  
Pain Scores ◽  
Measurement Design ◽  
Physical Recovery

scholarly journals Randomized Play-the-Winner Rule in Two-Period Two-Treatment Repeated Measurement Design

2016 ◽  
Vol 38 (3) ◽  
Author(s):  
Uttam Bandyopadhyay ◽  
Atanu Biswas ◽  
Shirsendu Mukherjee
Keyword(s):  
Clinical Trial ◽  
Real Data ◽  
Repeated Measurement ◽  
Sampling Scheme ◽  
Data Set ◽  
Repeated Measurement Design ◽  
Measurement Design ◽  
Set Up

In the clinical trial randomized play-the-winner rule is used with a goal to allocate more patients to the better treatment in course of sampling. Here we provide an application of this sampling scheme in repeated measurement design. We concentrate on the simplest set up, i.e., on two treatments and two periods. We study, both numerically and theoretically, several exact and limiting properties of this design. We consider some related inferential problems. Finally we use a real data set to illustrate the applicability of our proposed design.

scholarly journals Robustness of crossover trials against subject drop-out – Examples of perpetually connected designs

2017 ◽  
Vol 28 (3) ◽  
pp. 788-800 ◽  
Author(s):  
PJ Godolphin ◽  
EJ Godolphin
Keyword(s):  
Clinical Trial ◽  
Repeated Measures ◽  
Latin Squares ◽  
Repeated Measurement ◽  
Drop Out ◽  
Direct Effects ◽  
Carryover Effects ◽  
Experimental Conditions ◽  
Repeated Measurement Design ◽  
Measurement Design

When performing a repeated measures experiment, such as a clinical trial, there is a risk of subject drop-out during the experiment. If one or more subjects leave the study prematurely, a situation could arise where the eventual design is disconnected, implying that very few treatment contrasts for both direct effects and carryover effects are estimable. This paper aims to identify experimental conditions where this problem with the eventual design can be avoided. It is shown that in the class of uniformly balanced repeated measurement designs consisting of two or more Latin squares, there are planned designs with the following useful property. Provided that all subjects have completed the first two periods of study, such a design will not be replaced by a disconnected eventual design due to drop-out, irrespective of the type of drop-out behaviour that may occur. Designs with this property are referred to as perpetually connected. These experimental conditions are identified and examined in the paper and an example of at least one perpetually connected uniformly balanced repeated measurement design is given in each case. The results improve upon previous contributions in the literature that have been confined largely to cases in which drop-out occurs only in the final periods of study.

Visual Search through Words and Nonwords in Horizontal and Vertical Orientations

1975 ◽  
Vol 41 (3) ◽  
pp. 740-742 ◽  
Author(s):  
Ellen Mc Michael ◽  
S. Viterbo Mc Carthy
Keyword(s):  
Visual Search ◽  
College Women ◽  
Empirical Evidence ◽  
Significant Interaction ◽  
Search Time ◽  
Repeated Measurement ◽  
Repeated Measurement Design ◽  
Measurement Design ◽  
The Mean ◽  
Main Effects

In a repeated measurement design, 18 college women searched for target letters in 18 lists of common words, rate words, and nonwords arranged either vertically or horizontally. The mean search time in seconds for three trials in each of six conditions was expected to be significantly slower for nonwords than for words and for vertical orientations than for horizontal orientations. More importantly, a significant interaction was predicted between direction of search and the type of list searched. Results confirmed earlier findings that the two main effects were significant; the significant interaction provided empirical evidence that consideration needs to be given to both intra-word redundancy and direction of visual search.

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