The problems of hypothesis testing and interval estimation of the squared multiple correlation coefficient of a multivariate normal distribution are considered. It is shown that available one-sided tests are uniformly most powerful, and the one-sided confidence intervals are uniformly most accurate. An exact method of calculating sample size to carry out one-sided tests (null hypothesis may involve a nonzero value for the multiple correlation coefficient) to attain a specified power is given. Sample size calculation for computing confidence intervals for the squared multiple correlation coefficient with a specified expected width is also provided. Sample sizes for powers and confidence intervals are tabulated for a wide range of parameter configurations and dimensions. The results are illustrated using the empirical data from Timm (1975) that related scores from the Peabody Picture Vocabulary Test to four proficiency measures.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/00273170802285727 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Things Latinas need to plan for safety: A dual-site concept mapping study.
PLoS One
January 2025
MAP Centre for Urban Health Solutions, St. Michael's Hospital Toronto, Toronto, Ontario, Canada.
Background: Latina women in the United States experience intimate partner violence (IPV) at high rates, but evidence suggests Latinas seek help for IPV at lower rates than other communities. Safety planning is an approach that provides those experiencing IPV with concrete actions to increase their safety and referrals to formal services. While safety planning is shown to reduce future incidences of violence, little is known about the safety planning priorities of Latinas.
View Article and Find Full Text PDFUltrasound pupillometry for the detection of a relative afferent pupillary defect (RAPD): Systematic evaluation in patients with optic neuritis and comparison with infrared video pupillometry.
PLoS One
January 2025
Department of Neurology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Purpose: A relative afferent pupillary defect (RAPD) is a characteristic clinical sign of optic neuritis (ON). Here, we systematically evaluated ultrasound pupillometry (UP) for the detection of an RAPD in patients with ON, including a comparison with infrared video pupillometry (IVP), the gold standard for objective pupillometry.
Materials And Methods: We enrolled 40 patients with acute (n = 9) or past (n = 31) ON (ON+), 31 patients with multiple sclerosis (MS) without prior ON, and 50 healthy controls (HC) in a cross-sectional observational study.
FragPT2: Multifragment Wave Function Embedding with Perturbative Interactions.
J Chem Theory Comput
January 2025
Instituut-Lorentz, Universiteit Leiden, Leiden 2300RA, The Netherlands.
Embedding techniques allow the efficient description of correlations within localized fragments of large molecular systems while accounting for their environment at a lower level of theory. We introduce FragPT2: a novel embedding framework that addresses multiple interacting active fragments. Fragments are assigned separate active spaces, constructed by localizing canonical molecular orbitals.
View Article and Find Full Text PDFImpact of Symptoms on Quality of Life in Patients with Chronic Wounds.
Adv Skin Wound Care
January 2025
Chen Lin, MS, RN, is Nurse, Wound Care Center, The Eastern Theater Command General Hospital in Nanjing, China. At the Third Affiliated Hospital of Sun Yat-sen University, Guangdong, China, Hu Ailing, MS, is Chief Nurse; Li Caifei, BS, is Supervisory Nurse; and Liu Yuan, MS, is Associate Chief Nurse.
Objective: To analyze the occurrence of symptoms and quality of life (QoL) among patients with chronic wounds and the impact of chronic wounds on QoL.
Methods: Researchers evaluated 200 patients with chronic wounds using a general information questionnaire, a modified version of the Memorial Symptom Assessment Scale, and the Chinese version of the Cardiff Wound Impact Questionnaire. They performed correlation and linear regression analyses to explore the impact of symptoms on QoL.
CXCL13 levels in cerebrospinal fluid in relapsing-remitting multiple sclerosis: The role of Borrelia in neuroinfections.
J Vector Borne Dis
January 2025
İzmir Tınaztepe University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, İzmir, Türkiye.
Background Objectives: This study was compared the Borrelia antibodies and chemokine ligand 13 (CXCL13) levels in cerebrospinal fluid (CSF) samples from cases diagnosed with relapsing-remitting multiple sclerosis (RRMS), radiologically isolated syndrome (RIS), and pseudotumour cerebri (PTC).
Methods: A total of 43 CSF samples were collected from patients diagnosed with RRMS, RIS and PTC. We prospectively investigated Borrelia IgG and IgM antibodies in the CSF samples of the cases by enzyme-linked immunosorbent assay (ELISA) and Western blot (WB) method, and CXCL13 levels by ELISA.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!