Concepts, Norms, and Investigating
Scientific Phenomena
Integrated HPS Nottingham 2017
Harry Lewendon-Evans Department of Philosophy
Background
• Concepts in philosophy of science
• Semantics (meaning and reference)• Ontology (abstract senses, mental representations) • Naturalistic (psychology/cognitive science)
• Pragmatics (the use of concepts)
Plan of the talk
1. Background 2. Normativity
3. Concepts and constraints 4. Operational definitions
Plan of the talk
1. Background
2. Normativity
3. Concepts and constraints 4. Operational definitions
Normativity
• Two senses of norm:
1. Narrow: explicitly formulated rule that serves as a basis for determining whether something is permissible or obligatory
2. Wide: anything which serves as a criterion/standard/measure to
Normativity
• Wide sense:
• Legislated statues • Rules of games • ‘Unspoken’ rules
• Satisfaction conditions
• Cultural habits and manners • Goals and aims
Normativity
• Normative character of concepts
1. Representation: how the world should be 2. Reasoning
Plan of the talk
1. Background 2. Normativity
3. Concepts and constraints
Concepts and constraints
Concepts and constraints
• Long-term constraints
• Metaphysical commitments (e.g. conservation of energy)
• Mid-term constraints
• Research goals (e.g. gene mapping)
• Short-term constraints
Concepts and constraints
1. Normative 2. Prohibitive
• “…narrow alternatives of what the experimentalist takes to be
reasonable beliefs and actions…Using all the tools available, the experimentalist seeks to rule out alternative accounts of a phenomenon” (Galison 1987: 246)
Plan of the talk
1. Background 2. Normativity
3. Concepts and constraints
4. Operational definitions
Operational definitions
“In order to investigate a given phenomenon, one has to be able to empirically individuate instances of it. In order to be able to do so, one has to
possess some concept of the phenomenon. The possession of a concept is generally taken to imply knowledge about the class of phenomena that it applies to. But how do we make sense of concept use in cases where scientists investigate phenomena or objects they don’t know much
Operational definitions
“…paradigmatic conditions of application for the concepts in question. These are cast in terms of a description of a typical
experimental set-up thought to produce data that are indicative of the phenomenon picked out by the concept”
Operational definitions
• Mozart Effect
• Rauscher, Shaw and Ky (1993) operationalised the Mozart
Effect in terms of an experiment in which they tested the
Conclusions
1. How concepts are used in investigative practice.
2. One use concepts have is a normative one: in this sense, they constrain and provide a measure for our beliefs or claims.
3. The notion of constraint was drawn from Galison as a way of setting out some of the various ways in which the elements of science can have normative force for research.
4. As an example of how concepts function as normative constraints, I have drawn on Uljana Feest’s recent work on operational definitions, which characterises concepts as specifying rules for the application of concepts in an experimental procedure.