<div dir="ltr"><p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-GB"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000" style="">Dear Colleagues,</font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:11pt" lang="en-GB"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000"> </font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-size:12pt"><font color="#000000" style="background-color:rgb(255,255,255)"><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">We are currently
conducting a </span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">systematic review</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB"> on the eff</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">ectiveness</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB"> of <b>screening tools/tasks</b> </span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">for</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB"> </span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">identifying young
people with (or at risk of) </span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US"><b>mathematical learning
difficulties (MLD) or with low achievement (LA) in maths</b></span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US"><b>.</b> </span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">The team includes </span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">Mr Stanley Cheng
(Macquarie University, Australia</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">), </span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">Prof Rebecca Bull (Macquarie University, Australia</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">)</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">, Dr Emma Burns
(Macquarie University, Australia</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">)</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">, Ms Carola Ruiz (</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="zh-TW">Universidad Católica del Uruguay, Uruguay</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">), and Dr Darren Dai (</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="zh-TW">The Education
University of Hong Kong, Hong Kong</span><span style="font-family:Calibri;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">). We would like to include any unpublished
studies or manuscripts.</span></font></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-US"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000"> </font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-US"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000">Our inclusion criteria
are:</font></span><span style="color:rgb(0,0,0);font-family:Arial,Helvetica,sans-serif;font-size:small"> </span></p><ul type="disc" style="direction:ltr;unicode-bidi:embed;margin-top:0in;margin-bottom:0in">
 <ul type="circle" style="direction:ltr;unicode-bidi:embed;margin-top:0in;margin-bottom:0in">
  <li style="margin-top:0px;margin-bottom:0px;vertical-align:middle" lang="en-US"><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000">studies include participants aged 3 to 18 years</font></span></li>
  <li style="margin-top:0px;margin-bottom:0px;vertical-align:middle"><font color="#000000" style="background-color:rgb(255,255,255)"><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">have
      a clear definition and operating criterion of </span><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-AU">MLD
      (or at risk of MLD, or LA), and contain MLD (or at risk of MLD, or LA)
      sample(s) in the studies</span></font></li>
  <li style="margin-top:0px;margin-bottom:0px;vertical-align:middle"><font color="#000000" style="background-color:rgb(255,255,255)"><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-AU">studies
      contain sufficient and adequate data to determine the effectiveness of
      the screening tool(s)/task(s).</span><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US"> For example, (</span><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-AU">i)
      provide diagnostic accuracy data (e.g., sensitivity, specificity, overall
      accuracy, and/or area under the curve [AUC]) of the screening tool(s</span><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">)
      or (ii) </span><span style="font-family:Calibri;font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-AU">provide predictive validity (e.g.,
      convergent or divergent validity, correlation) of the screener tool(s) in
      relation to other assessment instrument(s)</span></font></li>
 </ul>
</ul>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-GB"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000"> </font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt"><font color="#000000" style="background-color:rgb(255,255,255)"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">If you have
unpublished </span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US">studies/manuscript(s)</span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB"> that meets our criteria or if you
have any questions, please get in touch by the 15</span><span style="vertical-align:super;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">th</span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB"> August 2023 (</span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-US"><a href="mailto:stanley.cheng@hdr.mq.edu.au">stanley.cheng@hdr.mq.edu.au</a></span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial" lang="en-GB">).</span></font></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-GB"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000"> </font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-GB"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000">Many thanks for your
help!</font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-GB"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000"> </font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-US"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000">Stanley Cheng</font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-US"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000">PhD student</font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-US"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000">Macquarie School of
Education</font></span></p>

<p style="margin:0in 0in 0in 0.375in;font-family:Calibri;font-size:12pt" lang="en-US"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><font color="#000000" style="">Macquarie University,
Australia</font></span></p></div>