Final answer:
The cardinal principle of McFalls Manifesto for a science of clinical psychology is that all clinical practices should be based on science. While specific criterions from McFalls Manifesto are not provided, a scientific approach typically includes empiricism, reliability, validity, and parsimony.
Step-by-step explanation:
McFalls Manifesto for a Science of Clinical Psychology
The cardinal principle of McFalls Manifesto for a science of clinical psychology is that all clinical practice and teaching should be grounded firmly in science. Unfortunately, your question does not provide specific criterions from McFalls Manifesto to outline. However, to generally answer what the four criterions in a scientific approach might be, we can refer to basic scientific principles which may include:
- Empiricism - the use of empirical evidence (observable and measurable evidence) to form conclusions.
- Reliability - consistency of measurement, meaning the results of experiments or studies can be replicated.
- Validity - the extent to which a concept, conclusion or measurement is well-founded and corresponds accurately to the real world.
- Parsimony - the principle that the simplest explanation is generally the correct one.
This set of criteria is not definitive for McFalls Manifesto but represents core tenets of a scientific outlook which would underlie any serious science of clinical psychology.