IB Psychology HL Internal Assessment Example

The student states a clear, focused aim and explains why the investigation is worthwhile in the context of students’ mathematical decision-making.

The student's description of the dual-process model and anchoring bias is accurate and clearly connected to the task.

The student's hypothesis is fully operationalized, with both variables identified and the expected direction stated clearly.

The null hypothesis could be phrased more precisely in statistical terms to match the way the data are analysed.

A brief final sentence that restates the exact link between the theory and the student's specific task would make the introduction even more polished.

The student explains the independent-measures design rather than just naming it, and they justify it through the risk of practice and exposure effects.

The student's sampling choices and participant characteristics are described in a way that shows awareness of access, comparability, and control.

The student explains several controls and materials clearly, including standardization and the use of deception to reduce demand characteristics.

The justification for some materials could be more explicit so that each one is clearly tied to its methodological purpose.

The uneven sample sizes across conditions are a weakness that should be acknowledged more directly as a limitation of the design.

A slightly fuller explanation of why each control helps isolate the anchor effect would strengthen the section further.