Christopher John Lloyd

Reply to Drs Almendra‐Arao and Sotres‐Ramos regarding Barnard's concept of convexity and possible extensions

Enrico Ripamonti, Chris Lloyd

Journal article  |  2020  |  Pharmaceutical Statistics

On p. 130 of his 1947's seminal paper, Barnard1 wrote: “we propose that in our ordering, the two points which, respectively, have ..

Exact confidence limits after a group sequential single arm trial

Chris Lloyd

Journal article  |  2020  |  Statistics in Medicine

A scenario analysis of future Hong Kong age and labour force profiles and its implications

Chris J Lloyd, Raymond Kwok, Paul SF Yip

Journal article  |  2019  |  Journal of the Royal Statistical Society: Series A (Statistics in Society)

The consequences of reduced fertility and mortality on the age distribution are an issue for most developed countries, but especia..

Tests for noninferiority trials with binomial endpoints: A guide to modern and quasi-exact methods for biomedical researchers

Enrico Ripamonti, Chris J Lloyd

Journal article  |  2019  |  Pharmaceutical Statistics

Applied statisticians and pharmaceutical researchers are frequently involved in the design and analysis of clinical trials where a..

A new method of identifying target groups for pronatalist policy applied to Australia

Mengni Chen, Chris J Lloyd, Paul SF Yip

Journal article  |  2018  |  PLOS ONE

An exhaustive numerical assessment of alternative unconditional tests of a binary treatment effect

Chris J Lloyd, Enrico Ripamonti

Journal article  |  2018  |  Journal of Statistical Computation and Simulation

Contemporary Frequentist Views of the 2 x 2 Binomial Trial

Enrico Ripamonti, Chris Lloyd, Piero Quatto

Journal article  |  2017  |  Statistical Science

The size accuracy of combination tests

Chris J Lloyd

Journal article  |  2017  |  Australian & New Zealand Journal of Statistics

Accurate p-values for adaptive designs with binary endpoints

Stephane Heritier, Chris J Lloyd, Serigne N Lo

Journal article  |  2017  |  Statistics in Medicine

Computing exact one-sided confidence limits for treatment effect in clinical trials

Chris J Lloyd

Journal article  |  2017  |  Communications in Statistics - Simulation and Computation

Through the looking glass

C WALLACE-CRABBE

Original Creative Work - Textual Work  |  2016

Importance accelerated Robbins-Monro recursion with applications to parametric confidence limits

Zdravko I Botev, Chris J Lloyd

Journal article  |  2015  |  ELECTRONIC JOURNAL OF STATISTICS

ON THE EXACT SIZE OF TESTS OF TREATMENT EFFECTS IN MULTI-ARM CLINICAL TRIALS

Chris J Lloyd

Journal article  |  2014  |  AUSTRALIAN & NEW ZEALAND JOURNAL OF STATISTICS

Computing highly accurate confidence limits from discrete data using importance sampling

Chris J Lloyd, Degui Li

Journal article  |  2014  |  Statistics and Computing

Aging population scenarios: An Australian experience

CL Kwok, CJ Lloyd, PSF Yip

Journal article  |  2013  |  Journal of Population Research

Accurate confidence limits for stratified clinical trials

Chris J Lloyd

Journal article  |  2013  |  Statistics in Medicine

A numerical investigation of the accuracy of parametric bootstrap for discrete data

Chris J Lloyd

Journal article  |  2013  |  Computational Statistics & Data Analysis

A practical ad hoc adjustment to the Simes P-value

Chris J Lloyd

Journal article  |  2012  |  Statistics and Probability Letters

Computing highly accurate or exact P-values using importance sampling

Chris J Lloyd

Journal article  |  2012  |  Computational Statistics & Data Analysis

Some non-asymptotic properties of parametric bootstrap P-values in discrete models

Chris J Lloyd

Journal article  |  2012  |  Electronic Journal of Statistics

CONSTRUCTING MORE POWERFUL EXACT TESTS OF EQUIVALENCE FROM BINARY MATCHED PAIRS

Chris J Lloyd, Max V Moldovan

Journal article  |  2011  |  Australian & New Zealand Journal of Statistics

Data Driven Business Decisions

CJL Lloyd

Book  |  2011

Some comments on the article: On construction of the smallest one-sided confidence interval for the difference of two proportions. The Annals of Statistics 38 (2010) 1227-1243

CJL Lloyd

Report  |  2011

ON CONSTRUCTION OF THE SMALLEST ONE-SIDED CONFIDENCE INTERVAL FOR THE DIFFERENCE OF TWO PROPORTIONS

Chris Lloyd, Paul Kabaila

Journal article  |  2010  |  The Annals of Statistics

How close are alternative bootstrap P-values?

Chris J Lloyd

Journal article  |  2010  |  Statistics and Probability Letters

Bootstrap and Second-Order Tests of Risk Difference

Chris J Lloyd

Journal article  |  2010  |  Biometrics

P-values based on approximate conditioning and p*

Chris J Lloyd

Journal article  |  2010  |  Journal of Statistical Planning and Inference

Exact tests of non-inferiority based on pre-estimation and second order pivotals.

CJL Lloyd

Journal article  |  2010  |  Journal of Statistical Computation and Simulation

Bootstrap P-values in Discrete Models: Asymptotic and non-asymptotic effects

CJL Lloyd

Report  |  2010

Exact tests based on pre-estimation and second order pivotals: non-inferiority trials

Chris J Lloyd

Journal article  |  2010  |  Journal of Statistical Computation and Simulation

EXACT P-VALUES FOR DISCRETE MODELS OBTAINED BY ESTIMATION AND MAXIMIZATION

Chris J Lloyd

Report  |  2008  |  Australian and New Zealand Journal of Statistics

More powerful exact tests of binary matched pairs

Chris J Lloyd

Journal article  |  2008  |  Statistics and Probability Letters

The economic value of improved environmental health in Victorian rivers

J Bennett, R Dumsday, G Howell, C Lloyd, N Sturgess, L Van Raalte

Journal article  |  2008  |  Australian Journal of Environmental Management

A new exact and more powerful unconditional test of no treatment effect from binary matched pairs

Chris J Lloyd

Journal article  |  2008  |  Biometrics

A more powerful exact test of noninferiority from binary matched-pairs data

Chris J Lloyd, Max V Moldovan

Journal article  |  2008  |  Statistics in Medicine

An application of multinomial logistic regression to estimating performance of a multiple-screening test with incomplete verification

Chris J Lloyd, Donald J Frommer

Journal article  |  2008  |  Journal of the Royal Statistical Society - Series C: Applied Statistics

The economic value of improved environmental health for Victorian Rivers

undefined Bennet, undefined Dumsday, undefined Howell, CJL Lloyd, undefined Sturgess

Journal article  |  2008  |  Australasian Journal of Environmental Management

Exact tests of non-inferiority from independent binomial data based on second order test statistics

C LLOYD

Report  |  2008

More powerful exact noninferiority and equivalence tests based on binary matched pairs

C LLOYD, M MOLDOVAN

Report  |  2008

On approximate conditioning and higher order asymptotics for 2x2 tables

C LLOYD

Report  |  2008

Estimated P-values in Discrete Models: Asymptotic and non-asymptotic effects

C LLOYD

Report  |  2008

Evaluating the performance of in-house legal teams

B TABALUJAN, C LLOYD

Book Chapter  |  2008

More powerful exact tests of equivalence

C LLOYD, MV Moldovan

Report  |  2008

Exact P-Values for Discrete Models Obtained by Estimation and Maximization

C LLOYD

Journal article  |  2008  |  Australian & New Zealand Journal of Statistics

Unconditional efficient one-sided confidence limits for the odds ratio based on conditional likelihood

Chris J Lloyd, Max V Moldovan

Report  |  2007  |  Statistics in Medicine

Exact one-sided confidence bounds for the risk ratio in 2 x 2 tables with structural zero

Chris J Lloyd, Max V Moldovan

Report  |  2007  |  Biometrical Journal

Exact one-sided confidence limits for the difference between two correlated proportions

Chris J Lloyd, Max V Moldovan

Journal article  |  2007  |  Statistics in Medicine

Efficient and exact tests of the risk ratio in a correlated 2x2 table with structural zero

Chris J Lloyd

Report  |  2007  |  Computational Statistics and Data Analysis

Efficient and Exact Tests of the Risk Ratio in a Correlated 2 x 2 Table with Structural Zero

C LLOYD

Journal article  |  2007  |  Computational Statistics & Data Analysis

Exact One-Sided Confidence Bounds for the Risk Ratio in 2 x 2 Tables with Structural Zero

C LLOYD, M MOLDOVANS

Journal article  |  2007  |  Biometrical Journal

Unconditional efficient one-sided confidence limits for the odds ratio based on conditional likelihood

C LLOYD, M MOLDOVANS

Journal article  |  2007  |  Statistics in Medicine

Improved Buehler limits based on refined designated statistics

P Kabaila, CJ Lloyd

Journal article  |  2006  |  Journal of Statistical Planning and Inference

More powerful exact tests of binary matched pairs

C LLOYD

Report  |  2006

Estimating test power adjusted for size

CJ Lloyd

Journal article  |  2005  |  Journal of Statistical Computation and Simulation

Monotonicity of likelihood support bounds for system failure rates

CJ Lloyd

Report  |  2005  |  Statistics and Probability Letters

Toward a general theory of competitive dominance: Comments and extensions on Powell (2003)

TC Powell, CJ Lloyd

Journal article  |  2005  |  Strategic Management Journal

On comparing the accuracy of competing tests of the same hypotheses from simulation data

CJ Lloyd

Journal article  |  2005  |  Journal of Statistical Planning and Inference

Buehler limits from approximate upper limits: a numerical investigation of the role of nominal coverage

P KABAILA, CJ LLOYD

Journal article  |  2005  |  Journal of Applied Statistical Science

Maximising P-values with respect to nuisance parameters

CJ LLOYD

Report  |  2005

Multinomial Logistic Regression: An Application to Estimating Performance of a Multiple Screening Test for Bowel Cancer when Negatives are Unverified

CJ LLOYD, DJ FROMMER

Report  |  2005

Exact confidence limits for the difference between two correlated proportions

CJ LLOYD, M MOLDOVANS

Report  |  2005

Monotonicity of likelihood support bounds for system failure rate

CJ LLOYD

Journal article  |  2005  |  Statistics and Probability Letters

A simple measure of the efficiency of a Buehler confidence limit

P Kabaila, CJ Lloyd

Journal article  |  2005  |  Communications In Statistics - Theory and Methods

Unconditional efficient upper limits for the odds ratio based on conditional likelihood

CJ LLOYD, M MOLDOVANS

Report  |  2005

EM P-values

CJ LLOYD

Report  |  2005

More Powerful Unconditional Tests of no Treatment Effect from Binary Matched Pairs

CJ LLOYD

Report  |  2005

Estimating the false negative fraction for a multiple screening test for bowel cancer when negatives are not verified

CJ Lloyd, D Frommer

Journal article  |  2004  |  Australian & New Zealand Journal of Statistics

Buehler confidence limits and nesting

P Kabaila, CJ Lloyd

Journal article  |  2004  |  Australian & New Zealand Journal of Statistics

Regression-based estimation of the false negative fraction when multiple negatives are unverified

CJ Lloyd, DJ Frommer

Report  |  2004  |  Journal of the Royal Statistical Society: Series C

Regression-based estimation of the false negative fraction when multiple negatives are unverified

CJ LLOYD, DJ FROMMER

Journal article  |  2004  |  Journal of the Royal Statistical Society - Series C: Applied Statistics

The efficiency of Buehler confidence limits

P Kabaila, CJ Lloyd

Journal article  |  2003  |  Statistics and Probability Letters

On the optimality and limitations of Buehler bounds

CJ Lloyd, P Kabaila

Journal article  |  2003  |  Australian & New Zealand Journal of Statistics

Inaugural editor's award

C Lloyd

Journal article  |  2003  |  Australian <html_ent glyph="@amp;" ascii="&amp;"/> New Zealand Journal of Statistics

On comparing the accuracy of competing tests of the same hypotheses from simulation data

CJ LLOYD

Report  |  2003

The importance of the designated statistic on Buehler upper limits on a system failure probability

P Kabaila, CJ Lloyd

Journal article  |  2002  |  Technometrics

Estimation of a convex ROC curve

CJ Lloyd

Journal article  |  2002  |  Statistics and Probability Letters

Estimation of a convex ROC curve

CJ Lloyd

Journal article  |  2002  |  Statistics and Probability Letters

Estimation of population size from biased samples using non-parametric binary regression

SX Chen, CJ Lloyd

Journal article  |  2002  |  Statistica Sinica

Semi-parametric estimation of ROC curves based on binomial regression modelling

CJ Lloyd

Journal article  |  2002  |  Australian & New Zealand Journal of Statistics

A comparison of suicide patterns in Australia and Hong Kong

CJ Lloyd, PSF Yip

Journal article  |  2001  |  Journal of the Royal Statistical Society - Series C: Applied Statistics

When do best confidence limits exist?

P Kabaila, CJ Lloyd

Journal article  |  2000  |  Statistics & Probability Letters

Nonparametric density estimation from biased data with unknown biasing function

CJ Lloyd, MC Jones

Journal article  |  2000  |  Journal of the American Statistical Association

Nonparametric density estimation from biased data with unknown biasing function

CJ Lloyd, MC Jones

Journal article  |  2000  |  Journal of the American Statistical Association

Maximum likelihood estimation of misclassification rates of a binomial regression

CJ Lloyd

Journal article  |  2000  |  Biometrika

A nonparametric approach to the analysis of two-stage mark-recapture experiments

SX Chen, CJ Lloyd

Journal article  |  2000  |  Biometrika

Regression models for convex ROC curves

CJ Lloyd

Journal article  |  2000  |  Biometrics

Fitting ROC curves using non-linear binomial regression

CJ Lloyd

Journal article  |  2000  |  Australian & New Zealand Journal of Statistics

A computable confidence upper limit from discrete data with good coverage properties

P Kabaila, CJ Lloyd

Journal article  |  2000  |  Statistics & Probability Letters

Profile upper confidence limits from discrete data

P Kabaila, CJ Lloyd

Journal article  |  2000  |  Australian <html_ent glyph="@amp;" ascii="&amp;"/> New Zealand Journal of Statistics

Employment and young people with a mental illness: A review

J Bassett, C Lloyd, C Lloyd

Journal article  |  2000  |  British Journal of Therapy and Rehabilitation

New challenges and opportunities for service delivery

J Bassett, C Lloyd, C Lloyd

Journal article  |  2000  |  British Journal of Therapy and Rehabilitation

Estimating the number of faults: Efficiency of removal, recapture, and seeding

CJ Lloyd, PSF Yip, KS Chan

Journal article  |  1999  |  IEEE Transactions on Reliability

Kernel estimators of the ROC curve are better than empirical

CJ Lloyd, Z Yong

Journal article  |  1999  |  Statistics & Probability Letters

Choosing sampling effort for recapture experiments with behavioural response

CJ Lloyd, Y Chaiyapong

Journal article  |  1999  |  Australian <html_ent glyph="@amp;" ascii="&amp;"/> New Zealand Journal of Statistics

Estimating a frequency distribution when the sampling is biased

CJ Lloyd

Journal article  |  1999  |  Communications in Statistics - Theory and Methods

Mental health reform and the challenge of change

C Lloyd, C Lloyd, R King

Journal article  |  1999  |  British Journal of Therapy and Rehabilitation

Using Smoothed Receiver Operating Characteristic Curves to Summarize and Compare Diagnostic Systems

CJ Lloyd, CJ Lloyd

Journal article  |  1998  |  Journal of the American Statistical Association

Using smoothed receiver operating characteristic curves to summarize and compare diagnostic systems

CJ Lloyd

Journal article  |  1998  |  Journal of the American Statistical Association

A comparison of recapture, removal and resighting designs for population size estimation

CJ Lloyd, PSF Yip, KS Chan

Journal article  |  1998  |  Journal of Statistical Planning and Inference

Improved efficiency for recapture studies from auxiliary experimentation

CJ Lloyd

Journal article  |  1998  |  Journal of Statistical Planning and Inference

Accurate inference for recapture experiments with behavioural response

Y Chaiyapong, CJ Lloyd

Journal article  |  1997  |  Journal of Statistical Computation and Simulation

Accurate pivotals from recapture experiments with time variation

CJ Lloyd

Journal article  |  1996  |  Biometrika

Estimating attributable response as a function of a continuous risk factor

CJ Lloyd

Journal article  |  1996  |  Biometrika

Improved inference from recapture experiments with behavioural response through modelling and auxiliary experimentation

Y Chaiyapong, CJ Lloyd

Journal article  |  1996  |  Australian Journal of Statistics

Accurate confidence intervals from recapture experiments

CJ Lloyd

Journal article  |  1995  |  Communications in Statistics - Theory and Methods

EFFICIENCY OF MARTINGALE METHODS IN RECAPTURE STUDIES

CJ LLOYD

Journal article  |  1994  |  Biometrika

ENCOUNTERS WITH STATISTICAL INFERENCE – AN INTERVIEW WITH EVAN WILLIAMS

GM Laslett, CJ Lloyd, GK Robinson

Journal article  |  1994  |  Australian Journal of Statistics

Testing recapture model MT for departure from homogeneity

CJ Lloyd

Journal article  |  1993  |  Journal of Statistical Computation and Simulation

MODIFIED MARTINGALE ESTIMATION FOR RECAPTURE EXPERIMENTS WITH HETEROGENEOUS CAPTURE PROBABILITIES

CJ LLOYD

Journal article  |  1992  |  Biometrika

TESTING CAPTURE HOMOGENEITY IN A RECAPTURE MODEL

CJ LLOYD

Journal article  |  1992  |  Biometrika

EFFECTIVE CONDITIONING

C Lloyd

Journal article  |  1992  |  Australian Journal of Statistics

ASYMPTOTIC EXPANSIONS OF THE FISHER INFORMATION IN A SAMPLE-MEAN

CJ LLOYD

Journal article  |  1991  |  Statistics & Probability Letters

Confidence intervals from the difference between two correlated proportions

CJ Lloyd

Journal article  |  1990  |  Journal of the American Statistical Association

ESTIMATING THE EFFECT OF ALCOHOL ON THE RISK OF A FATAL ROAD ACCIDENT

CJ LLOYD

Journal article  |  1990  |  Journal of the Royal Statistical Society. Series A (Statistics in Society)

SOME FURTHER RESULTS ON RANDOM SPLITTING OF AN INTERVAL

CJ LLOYD

Journal article  |  1989  |  Journal of Applied Probability

DOUBLING THE ONE-SIDED P-VALUE IN TESTING INDEPENDENCE IN 2X2 TABLES AGAINST A 2-SIDED ALTERNATIVE

CJ LLOYD

Journal article  |  1988  |  Statistics in Medicine

RECURSIVE SPLITTING OF AN INTERVAL WHEN THE PROPORTIONS ARE IDENTICAL AND INDEPENDENT RANDOM-VARIABLES

CJ LLOYD, EJ WILLIAMS

Journal article  |  1988  |  Stochastic Processes and their Applications

BIVARIATE NORMAL TRANSFORMATION MODELS

CJ LLOYD

Journal article  |  1988  |  SCANDINAVIAN JOURNAL OF STATISTICS

SOME ISSUES ARISING FROM THE ANALYSIS OF 2×2 CONTINGENCY TABLES

CJ Lloyd

Journal article  |  1988  |  Australian Journal of Statistics

APPLICATIONS AND EXTENSIONS OF BASU'S RESULTS ON MAXIMAL ANCILLARITY

CJ Lloyd

Journal article  |  1988  |  Australian Journal of Statistics

OPTIMAL MARTINGALE ESTIMATING EQUATIONS IN A STOCHASTIC-PROCESS

CJ LLOYD

Journal article  |  1987  |  Statistics & Probability Letters

PIVOTAL QUANTITIES BASED ON THE CONDITIONAL DISTRIBUTION FUNCTION TRANSFORM IN MODELS WITH ACCESSORY PARAMETERS

CJ LLOYD

Journal article  |  1987  |  Communications in Statistics - Theory and Methods

OPTIMALITY OF MARGINAL LIKELIHOOD ESTIMATING EQUATIONS

CJ LLOYD

Journal article  |  1987  |  Communications in Statistics - Theory and Methods

ANCILLARIES SUFFICIENT FOR THE SAMPLE SIZE

CJ Lloyd

Journal article  |  1985  |  Australian Journal of Statistics

ON EXTERNAL ANCILLARITY

CJ Lloyd

Journal article  |  1985  |  Australian Journal of Statistics