Concept maps
What can concept maps assess?
Concept mapping can be used as a form of assessment but it is also a useful skill to have for the purposes of learning, note taking and structuring ideas. Concept mapping is best suited to disciplines where conceptual knowledge is valued and so much of the literature relates to science and engineering subjects but there are many other areas where concept mapping may be usefully employed. As concept maps are graphical representations it might be more difficult to follow some common academic conventions around referencing and academic writing in this context. Thus there is a need to think carefully about how subject or assignment specific marking criteria and grade descriptors are written.
What alternative assessment methods could I choose?
Prior to using as an assessment approach, students will need to be introduced and have an opportunity to practice concept mapping. While some students will be familiar with the approach as it is sometimes used in schools as a revision strategy, they may be more familiar with mind mapping (Buzan, 2009). It will be necessary to ensure that they understand the two approaches are different because mind mapping typically starts with a main idea from which all other ideas emanate and is mainly about associations (perhaps creative associations) so does not address where the understanding of one idea is dependent upon another.
Different types: In the first use of concept maps in a module or course, there might be a focus on the basic elements of the map: two concepts and a link to make a proposition. Later on, the assessment might take into account cross-links between concepts, hierarchy and inclusions of examples. Cañas, Novak, and Reiska (2012) explore different conditions under which students complete concept maps with different amounts of support. For example students could be given freedom to complete a map, be given a focus question and / or be given a partial map to complete.

Individual / group? Concepts maps which address a particular focussed question can be produced individually and each map may be idiosyncratic but at the same time potentially correct. The group preparation of a maps would require that students discussed the nature of the concepts to be included, the links between them and possible hierarchies of concepts. This co-construction could be beneficial as a learning experience in itself.
A basic way of assessment a concept map would be to look at how ‘interconnected’ the maps is - basically a superior map is one where there is a robust set of connections between concepts. This is contrasted with maps that are ‘chain’ where concepts are simply linked onto a single different concept in linear fashion, or ‘hub and spoke’ where the map has a single central concept with a set of radials that emanate from it. There are a range of strategies that might be used to assess a map included in subject-specific literature. One detailed by McClure, Sonak and Suen (1999) focuses on the relational part of a map where one mark is given for a (correct?) link, two is given for a link plus a label for a possible relationship and three marks is given for a link, a possible relationship plus a correct arrow direction showing a hierarchical, causal or sequential relationship.