TUTORIAL: “With sufficient increases in X, more people will engage in the target behavior”

Research output: Contribution to journalReview articlepeer-review

Abstract

Psychological theory should guide the method. A method should not dictate theory. Extraneous assumptions entering psychological theories through the backdoor of a method may differentially affect the analysis of different data sets. This introduces noise and jeopardizes successful replication of valid theoretical claims. Auxiliary theoretical assumptions can also bias substantive conclusions (including across replications). It is therefore becoming ever more crucial that theoretical claims genuinely represent the given theory, no more, no less. Recent work has highlighted a disconnect between some theories and their ‘predictions,’ questioned the scope of theories in the presence of heterogeneity in hypothetical constructs, and developed methods to avoid extraneous assumptions. This tutorial merges these strands of research using a simple, illustrated case study on formulating and testing order-constrained theories. The tutorial applies to empirical paradigms in which scholars can state ordinal constraints on the outcome probabilities for several binary variables such as binary responses or the presence/absence of symptoms, and where the collection of binary variables is associated with a finite set of distinct conditions, such as group membership, treatment condition, or discrete levels of an independent variable. The goal is to let scholars spell out very precise hypotheses that (1) areunadulterated reflections of their theory, (2) provide exceptional theoretical nuance, (3) formally accommodate substantive heterogeneity and (4) offer rigorous and strong quantitative diagnosticity.

Original languageEnglish (US)
Article number102457
JournalJournal of Mathematical Psychology
Volume99
DOIs
StatePublished - Dec 2020

Keywords

  • Order-constrained hypotheses
  • Parsimony
  • Scientific reasoning
  • Theoretical nuance
  • Theory formulation

ASJC Scopus subject areas

  • Psychology(all)
  • Applied Mathematics

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