Table 4.

Correlation matrix of variables within the discussion section of student laboratory reports

Instances of evidence useNumber of wordsNumber of referencesDiscussion grade
Instances of evidence use1
Number of words0.77***1
Number of references0.35*0.54**1
Discussion grade0.55***0.60***0.35*1

n = 42 student laboratory reports. Variables include the number of instances of evidence use, words and references cited in the discussion, and the grade received for the entire discussion section. Correlation was calculated as Pearson r values. Significance is indicated as follows:

  • * P < 0.05,

  • ** P < 0.01, and

  • *** P < 0.001.