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SUMMARY:Affordances for web based diagnostic assessment - Dr Daniel Tan \,
 National Institute of Education\, Nanyang Technological University
DTSTART:20181126T163000Z
DTEND:20181126T180000Z
UID:TALK114718@talks.cam.ac.uk
CONTACT:Ann Waterman
DESCRIPTION:There are web-based tools which are readily available to devel
 op online instruments to diagnose students’ understanding of chemistry t
 opics. Multiple-tier multiple choice diagnostic instruments are easily dev
 eloped using tools such as Google Forms\, as well as easily administered t
 o students.  In general\, results are automatically collated by these tool
 s and can be downloaded as MS Excel files for further analysis.\nThis pape
 r describes the development of a web-based diagnostic tool on ionisation e
 nergy based on a pen-and-paper version developed in a previous study\, and
  the affordances of the web-based version over the pen-and-paper version. 
  The web-based version allows specific sets of second-tier options to be o
 ffered to students based on the first-tier answers chosen and the option t
 o choose more than one second-tier reason or for students to supply their 
 own reason(s). The results from the administration of the web-based instru
 ment indicated that all student difficulties determined by the pen-and-pap
 er version in the previous study also surfaced in the students’ response
 s to the items in the web-based instrument\; in fact\, more instances of s
 imilar student difficulties were determined\, in addition to new ones.  Di
 rect evidence of students’ possible manifold conceptions was also obtain
 ed. Thus\, this paper makes a strong argument for the use of such web-base
 d tools in the formative assessment of students’ understanding of chemis
 try concepts.\n
LOCATION: Donald McIntyre Building\, Faculty of Education\, 184 Hills Road
 \, Cambridge\, CB2 8PQ\, room 1S3
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