Revealing undergraduate biology students’ conception of variability and error bars within graphing
Fig 3
Frequencies of codes in how students responded to the question, “What type of information do the error bars provide you about the data represented in each bar”.
(a) shows frequencies out of all students (N = 3506), frequencies do not add up to 100 because students could have used codes from multiple categories. Within each category are the percentage of students who used codes for (b) Broad Terms, (c) Form of Error, (d) Purpose, and (e) Trend & Analysis. The number of codes used to calculate frequencies are 1433 for Broad Terms, 1082 for Form of Error, 2097 for Purpose, and 1400 for Trend & Analysis.