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Table 3 Students’ ability to correctly answer questions about the structure contained within the assessment puzzle phantom during Phase 2. A total of 134 students were assessed

From: Use of gelatin puzzle phantoms to teach medical students isolated ultrasound transducer movements and fundamental concepts

Psychomotor Skill

Pretest n(%)

Immediate Posttest n(%)

p

Draw domino face (tilting)

9 (7%)

25 (19%)

<.001

Identify shape of item on set of steps (sliding)

71 (53%)

81 (60%)

0.174

Determine depth of superficial surface of item on steps (depth)

24 (18%)

27 (20%)

0.720

Recognize the axis (transverse, longitudinal) of a tubular structure (rotating)

80 (60%)

83 (63%)

0.788

Determine orientation of tubular structure (rotating)

69 (52%)

78 (58%)

0.328