TABLE 3.
Subjects students refer to in their conclusions by task and groupa
| The claim refers to … | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Group | Subjects | Task/pedigree | Propositions | Dominant inheritance | Sex-linked Inheritance | AD | AR | XD | XR | Y | Other |
| Beginning genetics students | 23 | Autosomal recessive inheritance | 48 | 26(54.2%) | 10(20.8%) | 0(0%) | 2(4.2%) | 1(2.1%) | 2(4.2%) | 0(0%) | 7(14.6%) |
| 26 | Autosomal dominant inheritance | 44 | 23(52.3%) | 12(27.3%) | 1(2.3%) | 4(9.1%) | 0(0%) | 0(0%) | 0(0%) | 4(9.1%) | |
| Advanced genetics students | 39 | Autosomal recessive inheritance | 93 | 34(36.6%) | 16(17.2%) | 5(5.4%) | 11(11.8%) | 6(6.5%) | 9(9.7%) | 1(1.1%) | 11(11.8%) |
| 37 | Autosomal dominant inheritance | 80 | 31(38.8%) | 16(20%) | 7(8.8%) | 6(7.5%) | 9(11.2%) | 4(5%) | 0(0%) | 7(8.8%) | |
aStudents who did not respond to a task or did not make any analytical statements there were excluded from the individual calculation. AD, autosomal dominant inheritance; AR, autosomal recessive inheritance; XD, X-linked dominant inheritance; XR, X-linked recessive inheritance; Y, Y-linked inheritance.