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Author: Shein-Chung Chow Publisher: CRC Press ISBN: 1351727117 Category : Mathematics Languages : en Pages : 825
Book Description
Praise for the Second Edition: "... this is a useful, comprehensive compendium of almost every possible sample size formula. The strong organization and carefully defined formulae will aid any researcher designing a study." -Biometrics "This impressive book contains formulae for computing sample size in a wide range of settings. One-sample studies and two-sample comparisons for quantitative, binary, and time-to-event outcomes are covered comprehensively, with separate sample size formulae for testing equality, non-inferiority, and equivalence. Many less familiar topics are also covered ..." – Journal of the Royal Statistical Society Sample Size Calculations in Clinical Research, Third Edition presents statistical procedures for performing sample size calculations during various phases of clinical research and development. A comprehensive and unified presentation of statistical concepts and practical applications, this book includes a well-balanced summary of current and emerging clinical issues, regulatory requirements, and recently developed statistical methodologies for sample size calculation. Features: Compares the relative merits and disadvantages of statistical methods for sample size calculations Explains how the formulae and procedures for sample size calculations can be used in a variety of clinical research and development stages Presents real-world examples from several therapeutic areas, including cardiovascular medicine, the central nervous system, anti-infective medicine, oncology, and women’s health Provides sample size calculations for dose response studies, microarray studies, and Bayesian approaches This new edition is updated throughout, includes many new sections, and five new chapters on emerging topics: two stage seamless adaptive designs, cluster randomized trial design, zero-inflated Poisson distribution, clinical trials with extremely low incidence rates, and clinical trial simulation.
Author: Shein-Chung Chow Publisher: CRC Press ISBN: 1351727117 Category : Mathematics Languages : en Pages : 825
Book Description
Praise for the Second Edition: "... this is a useful, comprehensive compendium of almost every possible sample size formula. The strong organization and carefully defined formulae will aid any researcher designing a study." -Biometrics "This impressive book contains formulae for computing sample size in a wide range of settings. One-sample studies and two-sample comparisons for quantitative, binary, and time-to-event outcomes are covered comprehensively, with separate sample size formulae for testing equality, non-inferiority, and equivalence. Many less familiar topics are also covered ..." – Journal of the Royal Statistical Society Sample Size Calculations in Clinical Research, Third Edition presents statistical procedures for performing sample size calculations during various phases of clinical research and development. A comprehensive and unified presentation of statistical concepts and practical applications, this book includes a well-balanced summary of current and emerging clinical issues, regulatory requirements, and recently developed statistical methodologies for sample size calculation. Features: Compares the relative merits and disadvantages of statistical methods for sample size calculations Explains how the formulae and procedures for sample size calculations can be used in a variety of clinical research and development stages Presents real-world examples from several therapeutic areas, including cardiovascular medicine, the central nervous system, anti-infective medicine, oncology, and women’s health Provides sample size calculations for dose response studies, microarray studies, and Bayesian approaches This new edition is updated throughout, includes many new sections, and five new chapters on emerging topics: two stage seamless adaptive designs, cluster randomized trial design, zero-inflated Poisson distribution, clinical trials with extremely low incidence rates, and clinical trial simulation.
Author: Scott Thomas Parker Publisher: ISBN: Category : Languages : en Pages : 97
Book Description
The current study compared two measures of religiosity and compared the relationship between religiosity and marital satisfaction. Religiosity was measured using two methods: monthly church attendance and The Shepherd Scale (Bassett et al., 1981). Participants consisted of at 158 married individuals selected from four Christian churches in Burlington County, New Jersey. Results confirm that a relationship exists between Christian religious beliefs and marital satisfaction: a person who has strong, conservative Christian beliefs also has high marital satisfaction. Results also show a correlation between a single-item subjective measure of marital satisfaction and the Marital Satisfaction Inventory-Revised Edition (Snyder, 1997). Beliefs and practices of the Christian faith did not better predict marital satisfaction than attendance at religious functions. Religious beliefs, religious behaviors, or number of times at church each month did not predict marital satisfaction when the Marital Satisfaction Inventory-Revised Edition (Snyder, 1997) was used to assess marital satisfaction but religious behavior predicted marital satisfaction when a single-item, subjective measure of marital satisfaction was used instead. A final finding revealed that personal prayer and time spent in joint prayer are able to predict marital satisfaction regardless of the method used to assess marital satisfaction.
Author: Quaiser Abdullah Publisher: ISBN: Category : Languages : en Pages : 147
Book Description
The current study examined the relationship between religiosity, spirituality and marital satisfaction among Muslims who identified as African-American or Black to identify the best predictors of marital satisfaction. Religiosity was measured using modified versions of the subscales found in the Psychological Measure of Islam Religiousness (Raiya, 2008). Spirituality was measured using the Intrinsic Spirituality Scale (Hodge, 2003) and Marital Satisfaction was measured using a modified version of the Couples Satisfaction Index (Funk & Rogge, 2007). The study consisted of 194 participants, mainly from the east coast of the United States. Results of the study illustrate that religiosity and spirituality, as measured in this study, did not correlate with marital satisfaction. Results show strong correlations between the number of prior divorces, joint prayer with spouse and agreement on religion with marital satisfaction. Spirituality in Islam did not predict marital satisfaction better than religiosity. Marital satisfaction was predicted by the number of prior divorces - if someone was previously divorced a number of times, the chance of a future divorce was higher; joint prayer with spouse - if couples prayed more together, it indicated that they were more satisfied in their marriage; and agreement on religion - if spouses agreed with each other on religion, they enjoyed greater levels of marital satisfaction.
Author: Juan Arturo Paulino Publisher: ISBN: Category : Marriage Languages : en Pages : 0
Book Description
Marital satisfaction is paramount to a loving and long-lasting married life. The absence of marital satisfaction can lead to poor health, relational stress, and, eventually, divorce. This predictive, correlational study sought to research the relationship between the adoption of a position of rightness, the practice of extrinsic religiosity, and how these factors influence the levels of marital satisfaction among Christian spouses in the United States of America. The researcher used the Brief Version of the Religious Orientation Scale- Revised (ROS-R) to assess the level of intrinsic and extrinsic religious activity of the sample population. To measure the independent variable of their adherence to relational rightness, the researcher used the Revised Sense of Relational Entitlement the community (SRE-R). For the dependent variable of marital satisfaction, the researcher used the Locke-Wallace Marital Assessment Test (LWMAT). Three findings emerged from the study with practical implications for clergy, counselors, and couples: the theme of “false friends”, “religious amplification”, and “one size fits half”. The study concludes that an inflated sense of relational entitlement and extrinsic religiosity negatively impact the marital satisfaction of married Christian couples in the United States.
Author: Shein-Chung Chow
Author: Shein-Chung Chow
Author: Scott Thomas Parker
Author: Amanda K. Stutz
Author: Robert Wayne Herron
Author: Quaiser Abdullah
Author: Veronica Dawn De Raadt
Author: Maria Arroyo
Author: Harry T. Reis
Author: Juan Arturo Paulino
Author: James B. Quinn