scholarly journals Development and application of a two-tier diagnostic instrument to assess middle-years students’ proportional reasoning

2013 ◽  
Vol 25 (4) ◽  
pp. 523-545 ◽  
Author(s):  
Annette Hilton ◽  
Geoff Hilton ◽  
Shelley Dole ◽  
Merrilyn Goos
Keyword(s):  
Proportional Reasoning ◽  
Diagnostic Instrument ◽  
Middle Years

Gliedmaßenapraxie bei Patienten mit Multipler Sklerose

2017 ◽  
Vol 28 (3-4) ◽  
pp. 207-217
Author(s):  
Kathi Maren Harscher ◽  
Celina Hirth-Walther ◽  
Ilka Buchmann ◽  
Christian Dettmers ◽  
Jennifer Randerath
Keyword(s):  
Diagnostic Instrument ◽  
Short Version ◽  
Limb Apraxia

Zusammenfassung. Gliedmaßenapraxie ist eine Störung der motorischen Kognition, die besonders häufig nach linkshemisphärischem Schlaganfall auftritt. Diese Störung ist bei Patienten mit Multipler Sklerose (MS) noch wenig untersucht. Bisherige MS-Studien indizieren, dass die Leistung in den klassischen Pantomime- und Imitationstests beeinträchtigt sein kann. Die vorliegende Studie untersuchte die Gliedmaßenapraxie bei 26 MS-Patienten und 24 Gesunden mit dem Diagnostic Instrument for Limb Apraxia – Short Version (DILA-S), das zusätzlich zu den klassischen Imitations- und Pantomimetests auch den tatsächlichen Werkzeuggebrauch untersucht. Bei 27 % der MS-Patienten wurden apraktische Symptome in jeweils einzelnen Untertests diagnostiziert. Die Symptomausprägung war jedoch gering, sodass Gruppenvergleiche keine signifikanten Unterschiede zeigten. Insgesamt legen die Studienergebnisse nahe, dass Gliedmaßenapraxie bei MS-Patienten auftreten kann, aber vermutlich selten zu einem klinisch relevanten Symptom wird.

Developing a Three-Tier Diagnostic Instrument on Chemical Equilibrium (TT-DICE)

2020 ◽  
Vol 31 (3) ◽  
pp. 84
Author(s):  
J. Jusniar ◽  
E. Effendy ◽  
Endang Budiasih ◽  
S. Sutrisno
Keyword(s):  
High School Students ◽  
Chemical Equilibrium ◽  
Diagnostic Instrument ◽  
Difficulty Level ◽  
Literature Study ◽  
School Students ◽  
Development Models ◽  
High Category ◽  
Third Stage ◽  
Very High

<p class="p1"><span class="s1">This study aims to develop a Three-tier Diagnostic Instrument on Chemical Equilibrium (TT-DICE) to diagnose high school students’ misconceptions related to this topic. TT-DICE consists of thirty items, asking for students’ answers, reasonings, and levels of confidence. Three-stages development models developed by Treagust applied in developing TT-DICE. First-stage was a literature study to analyze the main concepts and students’ misconceptions in CE. The next step is the development of the TT-DICE prototype, consisting of item development, preliminary experiments, interviews, and revisions. The third stage of validity checking starts with content validation by experts and practitioners. A field test conducted to determine the reliability and quality variables are supporting TT-DICE items. These variables are Item Validity (IV), Difficulty Level (DL), Discrimination Index (DI), and effectiveness of distractors. Content validity by validators showed that the TT-DICE is valid with a very high category (96.1%). The results of item validity show that 88.9% of the items are valid. Testing of DL, DI, and the effectiveness of distractors in general, shows a good category. The Reliability of the three-tiers TTDICE using Alpha Cronbach is a high and very high category, respectively (0.83, 0.81 &amp; 0.91). The overall validity test results also concluded if the TT-DICE is valid, reliable, and suitable to diagnose misconceptions of Chemical Equilibrium.</span></p>

The importance of specific mathematical language for early proportional reasoning

2021 ◽  
Vol 55 ◽  
pp. 193-200
Author(s):  
Elien Vanluydt ◽  
Anne-Sophie Supply ◽  
Lieven Verschaffel ◽  
Wim Van Dooren
Keyword(s):  
Proportional Reasoning ◽  
Mathematical Language
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