Social Sciences and Policy
External Validity: Is There Still a Problem?
-
- Published online by Cambridge University Press:
- 01 January 2022, pp. 1308-1317
-
- Article
- Export citation
Medicine
What Theories Are Tested in Clinical Trials?
-
- Published online by Cambridge University Press:
- 01 January 2022, pp. 1318-1329
-
- Article
- Export citation
Why Most Sugar Pills Are Not Placebos
-
- Published online by Cambridge University Press:
- 01 January 2022, pp. 1330-1343
-
- Article
- Export citation
Front matter
PSA volume 82 issue 5 Cover and Front matter
-
- Published online by Cambridge University Press:
- 01 January 2022, p. f1
-
- Article
-
- You have access
- Export citation