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Beware the semantics when modeling

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Presentation on theme: "Beware the semantics when modeling"— Presentation transcript:

1 Beware the semantics when modeling
Kai R. Larsen University of Colorado NSF International Workshop on Dynamic Modeling of Health Behavior Change and Maintenance, Sept 8-9, 2015, London, UK Note: the presenter knows almost nothing about Skyler, diet, and exercise and will therefore not muddle the water with related factors.

2 CBSEM Analysis of TAM theory (Language info only…no respondents)

3 Social Cognitive Theory (Stevens, 2006, p. 35)

4 Survey correlations are predictable…
These work: Leadership: Idealized influence attributes Idealized influence behavior Inspiring motivation Intellectual stimulation Individualized consideration Conditional reward Management by exception active Management by exception passive Laissez-Faire Outcomes Related: Economic-exchange perceptions Social-exchange perceptions Intrinsic motivation Organizational citizenship behavior Turnover intention Self-rated work quality Self-rated work effort Leader-member social exchange Initiation of structure Consideration Affective organizational commitment Job satisfaction Technology adoption: Ease of use Usefulness Intention to use Patient reported outcomes: Global health Emotional distress – anger Emotional distress – anxiety Emotional distress – depression Fatigue – fatigue experience Fatigue – fatigue impact Pain – behavior Pain – interference Pain – quality Physical function

5 Important for Modeling Behaviors…
Bad news: The better the fit statistics, the more likely a theory is semantic Cronbach’s alpaha > .9 Be suspicious Semantics may account for the easy part of modeling behavioral theories Good news: Behavior-based responses are not semantically based More behavior-derived measures are available than ever before

6 What is left in Social Cognitive Theory for Skyler?
Physical Environment Access to sweets and snacks Social Environment Social support Behavioral capability Knowledge Skills


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