نتایج جستجو برای: paired t

تعداد نتایج: 735980  

Journal: :The Journal of bone and joint surgery. British volume 2007
N A Quraishi P Johnston J Bayer M Crowe A J Chakrabarti

This study prospectively evaluated the outcome of manipulation under anaesthesia and hydrodilatation as treatments for adhesive capsulitis. A total of 36 patients (38 shoulders) were randomised to receive either method, with all patients being treated in stage II of the disease process. The mean age of the patients was 55.2 years (44 to 70) and the mean duration of symptoms was 33.7 weeks (12 t...

2017
Drew FRALICK Julia Z. ZHENG Bokai Wang Xin M. TU Changyong FENG

In clinical research, comparisons of the results from experimental and control groups are often encountered. The two-sample t-test (also called independent samples t-test) and the paired t-test are probably the most widely used tests in statistics for the comparison of mean values between two samples. However, confusion exists with regard to the use of the two test methods, resulting in their i...

2012
Flávia de Moraes Arantes Juliana Kina Matheus José Bueno Gonçalves Júlio de Araújo Gurgel Omar Gabriel da Silva César Almada Santos

Results: All measurements were pooled and submitted to statistical analysis. In order to verify the inter-examiner systematic error a paired t-test was performed. Dahlberg ’s formula was used to estimate the casual error. For comparison purposes between Before and After stages, a paired t-test was done. For the comparison between mini-implant and Nance button groups, a Student t-test was applie...

2017
Qinqin Zhang Chieh-Li Chen Zhongdi Chu Fang Zheng Andrew Miller Luiz Roisman Joao Rafael de Oliveira Dias Zohar Yehoshua Karen B. Schaal William Feuer Giovanni Gregori Sophie Kubach Lin An Paul F. Stetson Mary K. Durbin Philip J. Rosenfeld Ruikang K. Wang

Purpose To compare the lesion sizes of choroidal neovascularization (CNV) imaged with spectral-domain (SD) and swept-source (SS) optical coherence tomography angiography (OCTA) and measured using an automated detection algorithm. Methods Patients diagnosed with CNV were imaged by SD-OCTA and SS-OCTA systems using 3 × 3-mm and 6 × 6-mm scans. The complex optical microangiography (OMAGC) algori...

Journal: :Circulation 1979
S Kinoshita K Fujita K Kanda Y Tanabe T Kawasaki

Eight patients with ventricular extrasystoles are reported in whom coupling intervals of the extrasystoles to the proceding sinus beats were variable and in whom paired ventricular extrasystoles were occasionally seen. In all patients, paired ventricular extrasystoles were initiated only by comparatively late coupled ventricular extrasystoles. However, the interval between the first and the sec...

2014

The one-sample paired t-test may be used to test whether the mean difference of two populations is greater than, less than, or not equal to a specific value. Because the t distribution is used to calculate critical values for the test, this test is often called the paired t-test. If the standard deviation of the differences is known, the normal distribution is used instead of the t distribution...

Journal: :The Journal of bone and joint surgery. British volume 2007
K J Messick M A Miller L A Damron A Race M T Clarke K A Mann

The role of vacuum mixing on the reduction of porosity and on the clinical performance of cemented total hip replacements remains uncertain. We have used paired femoral constructs prepared with either hand-mixed or vacuum-mixed cement in a cadaver model which simulated intra-operative conditions during cementing of the femoral component. After the cement had cured, the distribution of its poros...

Journal: :Academia Open 2021

This study aims to get a real picture of the Capital Market Reaction Corona Covid-19 Virus Outbreak (Study on LQ-45 Companies Listed Indonesia Stock Exchange). The analytical tool used is descriptive statistical analysis and classical assumption test. To test hypothesis, it done using data in form Paired Sample T-Test program "Product Service Solution" (SPSS). results hypothesis testing paired ...

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