FA 2018 Physics 140 Midterm 2 Problem Roulette Nudge

Number of students on Problem Roulette by day

Number of Problem Roulette questions answered by day, by group

Number of students answering Problem Roulette questions by day, by group

Comparing Control and Treatment Across Full Class

Control (A): 327 students
Treatment (B): 316 students
No assigned group: 18 students

Count value for retry = 0 is how many students used Problem Roulette
Count value for retry = NA is how many students did not use Problem Roulette

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Comparing PR Usage to Exam Scores

Pearson Correlation Coefficient

             Exam 2 Score     count  ncorrect PRpercent examPercent
Exam 2 Score    1.0000000 0.1771050 0.2445885 0.3583900   1.0000000
count           0.1771050 1.0000000 0.9430191 0.1924701   0.1771050
ncorrect        0.2445885 0.9430191 1.0000000 0.3337134   0.2445885
PRpercent       0.3583900 0.1924701 0.3337134 1.0000000   0.3583900
examPercent     1.0000000 0.1771050 0.2445885 0.3583900   1.0000000

Student that answered 175 questions on 10/31 answered 222 overall, with 72% Problem Roulette percent correct rate.

Comparing Exam Scores to Varying Levels of PR Usage