Reading focus
Syllabus: When Do Psychological Findings Generalize?
Follow how the proposed statement connects the sample described in the method to the population named in the conclusion.
Why you’re reading it. Turn an implicit claim of generality into something that can be evaluated.
A question to consider. For a student memory experiment, write one supported scope statement and one broader hypothesis that still needs testing.
Why this reading
A claim can extend far beyond the people and circumstances described in a method section. Simons and colleagues propose a way to make that intended reach explicit, including the evidence and assumptions that support it.
Before you read
The source population is where observations came from; the target population is what the conclusion is meant to concern. Both can refer to materials and situations as well as people. A boundary condition specifies circumstances under which an effect is expected to change or disappear.
Read for
- Separate observed boundaries, theoretically expected boundaries and limits that remain unknown.
- Compare the worked statements with a generic acknowledgment that further research is needed. What could a future study actually test?
Consider afterwards
- A memory experiment uses students and English nouns. What target claim could you defend, and what evidence would you need to extend it to other kinds of material?
Editorial context
This is a proposal for reporting and cumulative research, not an experiment showing that the proposed policy improves science. An explicit claim is easier to evaluate, but writing it does not supply evidence for it. Unanticipated boundaries can still emerge.