Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Search

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

1 results

  • 7 - Experimental Design

  • from Part II - Basic Design Considerations to Know, No Matter What Your Research Is About
  • Edited by Harry T. Reis, University of Rochester, New York, Tessa West, New York University, Charles M. Judd, University of Colorado Boulder
  • Book:
    Handbook of Research Methods in Social and Personality Psychology
    Published online:
    12 December 2024
    Print publication:
    19 December 2024, pp 136-159

  • Summary

    This chapter focuses on experimental designs, in which one or more factors are randomly assigned and manipulated. The first topic is statistical power or the likelihood of obtaining a significant result, which depends on several aspects of design. Second, the chapter examines the factors (independent variables) in a design, including the selection of levels of a factor and their treatment as fixed or random, and then dependent variables, including the selection of items, stimuli, or other aspects of a measure. Finally, artifacts and confounds that can affect the validity of results are addressed, as well as special designs for studying mediation. A concluding section raises the possibility that traditional conceptualizations of design – generally focusing on a single study and on the question of whether a manipulation has an effect – may be inadequate in the current world where multiple-study research programs are the more meaningful unit of evidence, and mediational questions are often of primary interest.