Theory, Deduction, and Rules of Correspondence

Unobtrusive Measures: Nonreactive Research in the Social Sciences

1966 • 2,034 citations

Causal Inferences in Nonexperimental Research

1964 • 1,306 citations

The Identification Problem in Econometrics.

1967 • 581 citations

Spurious Correlation: A Causal Interpretation*

1954 • 408 citations

Multiple Indicators in Survey Research

1962 • 118 citations

Statistical Resume of Spearman's Two Factor Theory

1932 • 8 citations