Is this Multilevel SEM?

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Marina Milyavskaya Wrote:

I am unsure how to best represent the following nesting structure: Participants completed measures about 4 goals they were planning to pursue throughout the semester (goals nested within individuals). Participants then completed daily diaries for 2 weeks (days nested within individuals). In those repeated questionnaires, some were about each of the goals (how hard they tried on each of their goals, each day), and other about the day in general (e.g. daily mood). Since both goals and days are nested within individuals, but not really within each other, what would be the best way to analyse the data?

I would like to run a model where goal motivation predicts daily goal-specific effort, which in turn predicts daily mood. I also collected data on goal progress a few months later, and would like to expand the model into a mediation model where the relationship between goal motivation and goal progress is mediated by daily effort and daily mood.

Thank you in advance.

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关键词：Multilevel Level multi Leve This completed following represent structure planning

A General Multilevel SEM Framework for Assessing Multilevel Mediation

Kristopher J. Preacher: University of Kansa

Michael J. Zyphur: University of Melbourne
Zhen Zhang: Arizona State Universit

Several methods for testing mediation hypotheses with 2-level nested data have been proposed by researchers using a multilevel modeling (MLM) paradigm. However, these MLM approaches do not accommodate mediation pathways with Level-2 outcomes and may produce conflated estimates of between- and within-level components of indirect effects. Moreover, these methods have each appeared in isolation, so a unified framework that integrates the existing methods, as well as new multilevelmediation models, is lacking. Here we show that a multilevel structural equation modeling (MSEM) paradigm can overcome these 2 limitations of mediation analysis with MLM. We present an integrative 2-level MSEM mathematical framework that subsumes new and existing multilevel mediation approaches as special cases. We use several applied examples and accompanying software code to illustrate the flexibility of this framework and to show that different substantive conclusions can be drawn using MSEM versus MLM.