Page Comparison

  Screening must be an enabled feature in the project to create screening intervals.

h3.

 Required Role(s)

\\

*  Project Management

h3. Steps

*Attributes tab*
# Enter a name for the interval
# The *Active* box is checked by default indicating the interval is active
# The *Fixed Interval* box must be checked for a screening interval
# Enter the *Target Length* which must be set to a negative value (to indicate that screening occurs prior to baseline)
# Select the *units* for the target length from the drop down box
# Enter the *Before Target Range* and *After Target Range* {info}The Before and After Target Range values determine the *Earliest* and *Latest* projected dates for data entry {info}
# Select the *units* from the drop down box for the before and after target range

    !ScreeningAttributesTab.JPG|width=539,height=282!
 
 
*Variable Groups tab*
 
# Mark the checkbox in the *Include* column for the variable groups that will be collected at this interval
# Mark the checkbox in the *Entered By Subject* column for variable groups that will be entered by the subject {info}This column is only displayed in projects with Subject Login enabled {info}

 *Interval Expression tab*
# [Enter a dependency |STX:Creating Dependencies]that is specific to this interval
# [Enter a dependency |STX:Creating Dependencies]that goes across variable groups {tip}Dependencies that are specific to a variable group are entered on the _Dependencies_ tab of the _Variable Group Update_ page {tip}

 *Screening Expression tab*

Enter the function to set the subject's screening status and return one of the enrollment status values.
 
+Enrollment Status Values+
1 - In Screening
2 - Failed Screening
3 - Passed Screening
4 - Enrolled
 
Returning no value or any other value will results in an *Unknown* enrollment status.
 
Example of a screening expression's User Defined Function:
 
  function main() {
     if (#status==1)  return 3;  // subject passed
     else if (#status==2 \|\| #status==3)  return 2;   // subject failed
     else return 1;   // subject is still in screening
  }
 
\\