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Table 2 Confidence ratings (out of 5) pre-, mid- and post-intervention (n = 87 students)

From: E-learning for chest x-ray interpretation improves medical student skills and confidence levels

 

Pre-intervention mean confidence rating (SD)

Mid-intervention mean confidence rating (SD)

Post intervention mean confidence rating (SD)

p-value1

Determining if the CXR is normal or abnormal

1.8 (0.90)

2.3 (0.98)

2.5 (1.00)

< 0.001

Determining if the heart is too white, too black or of normal grayscale

1.8 (0.94)

2.3 (0.97)

2.6 (1.05)

< 0.001

Determining if the heart is too large or of normal size

1.8 (0.93)

2.4 (0.97)

3.0 (1.10)

< 0.001

Determining if the heart is of normal or distorted (abnormal) shape.

1.7 (0.83)

2.2 (0.92)

2.7 (1.09)

< 0.001

Determining if the heart is in a normal anatomical position or if it has shifted

2.1 (0.99)

2.6 (1.03)

3.0 (1.13)

< 0.001

Giving a differential diagnosis based on the image findings

1.3 (0.57)

1.4 (0.66)

1.7 (0.81)

< 0.001

Overall interpretation of the heart on a CXR

1.5 (0.64)

1.8 (0.68)

2.1 (0.94)

< 0.001

  1. 1From repeated measures ANOVA testing the hypothesis that there is no difference over the three time points
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BMC Medical Education

ISSN: 1472-6920

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