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Table 1 ACT Theories, Theoretical Constructs, and Essential Elements.

From: Using process evaluation for program improvement in dose, fidelity and reach: the ACT trial experience

Theory Theoretical construct and definition ACT Essential Element Key Word
SDT Autonomy supportive environment-contributes to feelings of agency or being "in control" ("internal locus of causation") Participants have choices Input and Choice
   Participants provide meaningful input, have influence on what happens in program  
   Participants know what is expected of them Successful and confident (in program)
SDT Competence supportive environment-contributes to being able to effectively interact with ones environment and get wanted effects and outcomes Participants feel capable and able to participate successfully  
   Participants are engaged and involved in program Engaged and Interact
SDT Relatedness supportive environment-contributes to feelings of connectedness and being accepted by significant others Participants feel that they belong and are part of the group Belonging
   Participants feel like they are a valued member of group  
   Participants get along with each other, show respect for each other (positive interactions) Respect
SDT Intrinsic motivation for physical activity Participants enjoy being in the program and being physically active Fun & Enjoyment
   Participants are physically active during the PA component of the program Being physically active
SCT Self efficacy (person factor)-confidence in ones ability to successfully engage in a behavior Participants feel confident that they can be physically active in the program, and at home Successful onfident (at home)
SCT Behavioral skills (behavioral factor)-skills or capability to self-regulate behavior (self-monitoring, group goal setting, support seeking) Participants have specific behavioral skills that enable them to be physically active at home Life skills
SCT Social support (environmental factor)-instrumental and/or emotional support from peers and/or family members to engage in a specific activity Participants have the social support needed to be physically active at home Support
SDT & SCT Self concept/motivation- Participants have a self-concept that includes being physically active Students participate in strategic self presentation Self-motivated
  1. Note: SDT = Self-Determination Theory; SCT = Social Cognitive Theory; ACT = Active by Choice Today