2. IB INTERNAL ASSESSMENT MARKING SCHEME
Required Aspects
Criterion Level
Complete (2) Partial (1) Not at All (0)
Formulates a Does not identify a
Design Formulates a focused Complete 2
problem/research question problem/research
problem/research question Partial 1
Aspect 1 – Defining the that is incomplete or question and does not
and identifies the relevant Not at al 0
Problem and Selecting identifies only some relevant identify any relevant
variables. NE
Variables variables. variables.
Complete 2
Designs a method for the Designs a method that Designs a method that
Aspect 2 – Controlling Partial 1
effective control of the makes some attempt to does not control the
Variables Not at all 0
variables. control the variables. variables.
NE
Develops a method that Complete 2
Develops a method that Develops a method that
Aspect 3 – Developing a does not allow for any Partial 1
allows for the collection of allows for the collection of
Method for Collecting Data relevant data to be Not at all 0
sufficient relevant data. insufficient relevant data.
collected. NE
Data Collection and Records appropriate
Processing quantitative and Records appropriate Does not record any Complete 2
associated qualitative raw quantitative and associated appropriate quantitative Partial 1
Aspect 1 – Recording data, including units and qualitative raw data, but with raw data or raw data is Not at all 0
Raw Data uncertainties where some mistakes or omissions. incomprehensible. NE
relevant.
No processing of
Complete 2
Processes quantitative raw quantitative raw data is
Aspect 2 – Processing Processes the quantitative Partial 1
data, but with some mistakes carried out or major
Raw Data raw data correctly. Not at all 0
and/or omissions. mistakes are made in
NE
processing.
Presents processed data Complete 2
Presents processed data Presents processed data
Aspect 3 – Presenting appropriately and, where Partial 1
appropriately, but with some inappropriately or
Processed Data relevant, includes errors Not at all 0
mistakes and/or omissions. incomprehensibly.
and uncertainties. NE
Conclusion and States a conclusion, with States no conclusion or Complete 2
States a conclusion based
Evaluation justification, based on a the conclusion is based on Partial 1
on a reasonable
reasonable interpretation an unreasonable Not at all 0
Aspect 1 – Concluding interpretation of the data.
of the data. interpretation of the data. NE
Identifies some weaknesses Complete 2
Identifies irrelevant
Aspect 2 – Evaluating Evaluates weaknesses and limitations, but the Partial 1
weaknesses and
Procedure(s) and limitations. evaluation is weak or Not at all 0
limitations.
missing. NE
Suggests realistic Complete 2
Aspect 3 – Improving the improvements in respect Suggests only superficial Suggests unrealistic Partial 1
Investigation of identified weaknesses improvements. improvements. Not at all 0
and limitations. NE