IB Sports, exercise and health science (SEHS) SL Extended Essay Example

The student clearly states a comparative research question and keeps the essay recognizably tied to that focus throughout.

The student explains the broad purpose of the investigation well and shows an attempt to use a secondary-research approach.

The student's topic is communicated with enough clarity that the reader can follow the comparison between the two rehabilitation methods.

The student includes a methodology section and shows some awareness of source selection and verification.

The question is still broad because it combines two interventions, a wide athlete group, and an undefined idea of recovery.

The scope shifts between ACL injury and post-operative ACL reconstruction without being explicitly clarified.

The student's method is described generally rather than in a reproducible way, so the reader cannot clearly see how sources were found and selected.

The investigation would be stronger if the student defined the main outcome they are judging rather than treating several recovery measures as equally central.

The student shows good general knowledge of ACL rehabilitation and the functional issues athletes face after injury.

The student uses relevant rehabilitation terminology such as ROM, proprioception, quadriceps atrophy and NMES.

The student connects physiological ideas to rehabilitation outcomes, which helps the discussion feel purposeful.

The student demonstrates that they understand why different rehabilitation approaches might be used at different stages.

The student sometimes blurs important anatomical distinctions, especially between ligaments and tendons.

The student treats electrotherapy and NMES too interchangeably in places, which reduces precision.

Some claims about healing and recovery are broader than the evidence the student presents supports.

The application of knowledge is good overall, but it is not always consistently accurate or discriminating.