Universiteit Leiden

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Mediation and Moderation Analysis

Within PhD projects, questions often arise about how effects become stronger or weaker due to some third variable (moderation), or how effects may be explained by some intermediate third variable (mediation). In this three-day course the core issues of mediation and moderation are explored and practiced.

Target group
Lecturer
Researcher
Postdoctoral researcher
PhD candidate
Guest
Teachers
Elise Dusseldorp  (Coordinator/Associate professor) Jacqueline Zadelaar  (Assistant professor)
Method
Training course
Hours
33

Registration deadline is Thursday 15 June 2023.

Description

The first day of the course is targeted at the basic concepts of mediation and moderation  (causal steps approach, estimating and testing indirect effects, effect size, and post hoc probing of moderator effects). On the second day generalisations to multiple mediators or moderators are discussed. On the third day combinations of moderation and mediation (moderated mediation) will be discussed, not only as a direct extension, but also in the context of within-subjects designs. During both days, lectures are intermingled with computer practical sessions using SPSS in combination with SPSS macro PROCESS, and/or using R.

Course objectives

After this course, you are able to:

  • explain the concepts of mediation, moderation, and moderated mediation, and related issues (e.g., mean centering, causal steps approach);
  • choose the appropriate analysis for different research questions involving mediation and/or moderation;
  • perform mediation, moderation, and moderated mediation analysis in SPSS, macro PROCESS, and R.
  • interpret the results of such mediation, moderator, and moderated mediation analyses.

Preparation

Read chapters 1, 2, and 3 of Hayes' book (2022) to brush up on your knowledge. Bring your own device to class with SPSS or R installed on it.

Literature

  • Hayes, A. F. (2022). Introduction to mediation, moderation, and conditional process analysis. A regression-based approach (3rd Edition). New York: Guilford.

  • A few journal articles (to be announced).

Entry requirements

Basic knowledge about multiple regression analysis, and basic skills in working with SPSS or R.

Fees

Target group

One day

Two days

Three days

PhD candidates FSW

FREE

FREE

FREE

Staff FSW

€300

€400

€500

Other Leiden University PhD candidates

€215

€315

€415

Externals*

€450

€600

€750

*Externals are PhD candidates related to staff members of FSW (buitenpromovendi) and/or staff members of other Leiden University Faculties.

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