Does practice make perfect? A study of the Granger-causal - PowerPoint PPT Presentation

Does practice make perfect? A study of the Granger-causal relationship betw een attem pting to solve online exercises and m athem atical proficiency Krista Linnoinen Antti Rasila

Support Successful Student Mobility with Mumie Department of Mathematics and Systems Analysis 7.11.2013 2

Mumie Department of Mathematics and Systems Analysis 7.11.2013 3

STACK Department of Mathematics and Systems Analysis 7.11.2013 4

Sir Clive Granger (4.9.1934 - 27.5.2009) Department of Mathematics and Systems Analysis 7.11.2013 5

Assumptions for Granger causality • The past cannot be caused by the future. • Elsewhere unavailable, unique information about an effect is contained in a cause . Department of Mathematics and Systems Analysis 7.11.2013 6

Unrestricted regressions Department of Mathematics and Systems Analysis 7.11.2013 7

If students are penalised for not attempting to solve the exercises “Attempts do not Granger-cause skills” “Skills do not Granger-cause attempts” Department of Mathematics and Systems Analysis 7.11.2013 8

32% penalty and penalising students for not attempting to solve the exercises “Attempts do not “Skills do not Granger-cause Granger-cause attempts” skills” Department of Mathematics and Systems Analysis 7.11.2013 9

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