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Wai-Yin Wan

Creator Affililation: 
NSW Bureau of Crime Statistics and Research

Creator/Contributor
12
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Research report

19 Jun 2017

Aim: To conduct an exploratory analysis of the factors influencing trial duration in the NSW District Criminal Court

Method: Bi-variate relationships between trial duration and various offence types were examined using one way analyses of variance, fixed...

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Research report

01 May 2017

Aim: To develop a statistical model which enables court administrators to determine the future impact on trial court delay of changes in the backlog of pending trials.

Method: Data on the size of the pending caseload between January 2011 and June 2016...

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Research report

31 Oct 2016

Aim:
To compare the accuracy of Autoregressive Integrated Moving Average (ARIMA) model and Holt-Winters additive exponential smoothing method for forecasting the size of the total NSW adult prison population

Method:
NSW adult prison population...

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Research report

12 Oct 2016

Overview

Aims: To determine: (1) the long-term risk that someone charged with a violent offence will commit another violent offence (2) what factors influence the likelihood of desistance and the length of time to the next violent offence for those who do...

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Evaluation

Report

25 Nov 2015

This evaluation examined the impact of Reading Recovery (RR) on students' outcomes in NSW government schools. The evaluation found some evidence that RR has a modest short-term effect on reading skills among the lowest performing students. However, RR does not appear to be an effective...

Research report

27 Nov 2014

Large-scale seizures of cocaine, heroin and amphetamine-type substances (ATS) do not result in any reduction in overdoses on these drugs or on arrests for use and possession of these drugs, according to this report.

Aim: The aim of this study was to examine the question...

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Research report

11 Sep 2014

This is the first study to evaluate the effectiveness of parole supervision in Australia.

Foreword

Although more than 12,000 offenders are on parole at any given time, little is known about the effectiveness of parole supervision in reducing reoffending. The few...

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Research report

11 Sep 2014

This study finds evidence that parole is effective in reducing the risk of re-offending in Australia.

Executive summary

The current study sought to address four questions of importance to correctional policy:

1. Does unconditional release increase the risk,...

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Research report

15 May 2014

This paper provides a preliminary analysis of the rapid rise in the NSW prison population from January 2013 to March 2014.

Method: Descriptive analysis of court, crime, arrest and correctional data, and ARIMA modelling of prison trends.

Results:...

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Research report

07 Nov 2013

Aim: To develop a method for forecasting the NSW remand and sentenced prisoner populations.

Method: Autoregressive Integrated Moving Average (ARIMA) models with other time series as input variables were employed to estimate and forecast changes in the...

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