| Course | HLTH 2500 Theories of Health Behavior |
|---|---|
| Week | Week 11 |
| Paper type | Course reflection |
| Length | About 1,020 words, 6 pages |
| Format | APA 7 student paper |
| School | Walden University |
| Program | BS in Public Health |
| Updated | October 2026 |
Free sample paper for HLTH 2500 Week 11
Where the Theory of Planned Behavior Stopped Explaining Lunchtime Walking: The Point It Ran Out, What Fell Outside It and How I Now Read Claims in This Field
Student Name
Walden University
HLTH 2500: Theories of Health Behavior
Instructor Name
Month Day, Year
Where the Theory of Planned Behavior Stopped Explaining Lunchtime Walking: The Point It Ran Out, What Fell Outside It and How I Now Read Claims in This Field
The Theory I Worked With
All term I worked with one theory, the theory of planned behavior, and one behavior: office workers walking briskly for at least 10 minutes during the lunch break on at least three workdays a week. I chose the theory because it is clear, widely tested and built for behaviors people decide to do. I expected it to explain most of what mattered. It explained a good deal, and then, at an identifiable point, it stopped.
Where It Explained Well
The theory explained the decision to walk. Its three constructs, attitude toward the walk, subjective norm and perceived behavioral control, each had a concrete meaning for this behavior. Attitude captured the trade between feeling alert in the afternoon and arriving back warm. The subjective norm captured the supervisor's influence. Perceived behavioral control captured meetings, heat and the lack of a route. Across 185 studies, the theory explained about 39% of the variance in intention (Armitage & Conner, 2001), and for this behavior I could see why: the reasons workers gave for wanting or not wanting to walk fit its categories.
Where It Stopped
The theory stopped explaining at the step between deciding and doing. I first saw this in the Week 5 application. A worker could hold a favorable attitude, believe the supervisor approved, feel the walk was manageable and intend firmly to walk three times that week, and still eat at the desk. The theory predicted that worker would walk. The theory's own evidence acknowledges the gap: across studies, it explained less variance in behavior (27%) than in intention (Armitage & Conner, 2001), and experiments that changed intentions produced smaller changes in behavior (Webb & Sheeran, 2006).
What Fell Outside It
Three things fell outside the theory, and each became clearer as the term went on.
The first was habit. The lunch routine of eating at the desk while reading email runs without deliberation. Wood and Neal (2007) describe habits as responses cued by context that persist after a person's goals change. The theory has no construct for this. In Week 6, the vending-machine soda example made the point sharper: a behavior that continues against a person's own intention cannot be explained by a model whose central predictor is intention.
The second was planning. An intention to walk "three times this week" says nothing about which days or when. Implementation intentions, plans linking a situation to an action, improved goal attainment across many studies (Gollwitzer & Sheeran, 2006), but planning has no place in the model.
The third was daily variation in control. Perceived behavioral control is measured once, but actual control at a county office changes day to day, with meetings moved and heat advisories issued. A single measure of perceived control cannot capture a condition that changes daily.
Sniehotta et al. (2014) argued, partly on grounds like these, that the theory should be retired, because it does not account for many influences on behavior and has generated little effective intervention. Ajzen (2011) had earlier replied to similar criticisms that the theory accommodates such influences through its background factors and that its predictive success is well established. Having worked through one behavior in detail, I find myself between them. The theory is a good account of the decision. It is not an account of the behavior once the decision has been made.
What That Has Changed About How I Read Claims
The main change is that I now ask, of any claim that a theory "explains" a behavior, which part of the behavior it explains. When a study reports that a model accounted for a large share of variance, I look at whether the outcome was intention or behavior, and whether behavior was self-reported or observed; the theory did better with self-reported behavior than with behavior that was observed or recorded (Armitage & Conner, 2001). A theory can explain intention well and behavior poorly, and those are different achievements.
I also read measures differently. In Week 8, appraising a widely used exercise self-efficacy scale, I found that it measured confidence to exercise against general barriers without defining the behavior (Marcus et al., 1992). Now when a paper says self-efficacy predicted activity, I ask which behavior the items described. A construct's name on a scale does not guarantee the scale measures the construct.
Finally, I read program descriptions by asking what each component is meant to change. When I built the Lunch Loop rationale in Week 10, the components that came from the theory addressed the decision, and the ones that addressed the behavior after the decision, the planning card and the consistent walking routine, came from outside it. A program built only from the theory of planned behavior would have missed half of what the behavior needed.
What I Would Do Differently Next Time
If I applied a theory to a behavior again, I would begin by asking where the behavior is decided and where it is merely performed. For lunchtime walking, the decision happens occasionally, perhaps on a Sunday evening or after a health check, while the performance has to happen on dozens of separate days. A theory of decisions is the right tool for the first and an incomplete one for the second. I would also measure behavior objectively from the start, because the gap between self-reported and recorded walking is exactly where a theory's apparent success can hide.
Conclusion
The theory of planned behavior explained why workers did or did not decide to walk at lunch, and it stopped explaining at the point where a decided walk had to happen on a particular day, against a habit, without a plan and with conditions that changed. Those are not small exceptions for something people do, or skip, every workday. What I take from the course is not that the theory is wrong, but that "explains the behavior" is a claim to be checked, step by step, against what the theory actually contains.
References
Ajzen, I. (2011). The theory of planned behaviour: Reactions and reflections. Psychology & Health, 26(9), 1113-1127. https://doi.org/10.1080/08870446.2011.613995
Armitage, C. J., & Conner, M. (2001). Efficacy of the theory of planned behaviour: A meta-analytic review. British Journal of Social Psychology, 40(4), 471-499. https://doi.org/10.1348/014466601164939
Gollwitzer, P. M., & Sheeran, P. (2006). Implementation intentions and goal achievement: A meta-analysis of effects and processes. Advances in Experimental Social Psychology, 38, 69-119. https://doi.org/10.1016/S0065-2601(06)38002-1
Marcus, B. H., Selby, V. C., Niaura, R. S., & Rossi, J. S. (1992). Self-efficacy and the stages of exercise behavior change. Research Quarterly for Exercise and Sport, 63(1), 60-66. https://doi.org/10.1080/02701367.1992.10607557
Sniehotta, F. F., Presseau, J., & Araújo-Soares, V. (2014). Time to retire the theory of planned behaviour. Health Psychology Review, 8(1), 1-7. https://doi.org/10.1080/17437199.2013.869710
Webb, T. L., & Sheeran, P. (2006). Does changing behavioral intentions engender behavior change? A meta-analysis of the experimental evidence. Psychological Bulletin, 132(2), 249-268. https://doi.org/10.1037/0033-2909.132.2.249
Wood, W., & Neal, D. T. (2007). A new look at habits and the habit-goal interface. Psychological Review, 114(4), 843-863. https://doi.org/10.1037/0033-295X.114.4.843
What the HLTH 2500 Week 11 instructions ask for
The closing reflection in a theory course asks where the theory you used stopped explaining your behavior. Begin by naming the theory and behavior you worked with. Describe what the theory explained well, with evidence. Then identify the point where it stopped, as precisely as you can, using your own assignments as evidence. Name what fell outside the theory and support each with a source. If there is a published debate about the theory's limits, summarize both sides and say where you stand. Finally, describe what this has changed about how you read claims in the field, giving concrete examples. Write as yourself, in the first person, while keeping the analysis in front, and refer to specific weeks so the reader can follow how your view developed over the term.
Inside the HLTH 2500 Week 11 example
The reflection opens by naming the theory and behavior. A section explains what the theory captured, citing Armitage and Conner. A section locates the limit at the step between deciding and doing, drawing on the Week 5 application and Webb and Sheeran. A section lists three things outside the theory, habit, planning and daily variation in control, with Wood and Neal and Gollwitzer and Sheeran, and summarizes Sniehotta and colleagues' critique and Ajzen's reply. A section describes changes in how the writer reads claims, measures and program descriptions, citing Marcus and colleagues. A short section on what the writer would do differently and a conclusion close the piece.
HLTH 2500 Week 11 rubric: what earns full marks
Faculty grade the closing reflection on whether it locates a real limit of the theory with evidence. A precise statement of where the theory stopped explaining earns more than general remarks about its weaknesses. Supporting each limitation with a source shows depth. Engaging a published debate fairly, and taking a reasoned position, is valued. The section on how the writer now reads claims is often what distinguishes strong reflections, since it shows the course changed practice, not only opinion. References to the student's own earlier assignments are expected. First person is appropriate. Reflections that focus on personal growth without analysis, or that dismiss the theory entirely, earn less. Faculty also check that each cited study is described accurately.
HLTH 2500 Week 11 help from the desk
Start by rereading your own assignments from the term and marking the moments where the theory did not account for something you saw. Those moments are your evidence. Ask what kind of thing fell outside the theory each time, and find a source that names it. Look for published critiques of your theory and the responses to them, and decide where you stand. Then think about how you now read research: what questions do you ask that you did not ask before? Write those as concrete habits. A sample reflection built on your own assignments is something we can draft. Before you submit, check that your first paragraph names the theory and behavior, and that your last paragraph says something about how you read claims, not only about the theory itself.
Get a HLTH 2500 Week 11 example written to your instructions
Send the Week 11 prompt and the rubric and the desk writes the reflection in first person, with the limit named at construct level, two course moments described and the argument cited. The first custom piece is free and lands in 24-48h. Private detail is left where it is, and the desk works from whatever summary you choose to write.
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HLTH 2500 Week 11 questions, answered
Where can I find a free HLTH 2500 Week 11 sample paper?
The closing reflection on where the theory of planned behavior stopped explaining lunchtime walking, with references, is free to read here.
Where did the theory stop explaining in the HLTH 2500 Week 11 example?
At the step between deciding to walk and actually walking on a given day.
What fell outside the theory?
Habit, planning about when and where to act and daily changes in actual control.
Where does the writer stand on retiring the theory?
Between its critics and Ajzen: it explains the decision well but not the behavior after the decision.
How has the writer's reading of claims changed?
They now ask whether a theory explained intention or behavior, how behavior was measured and what a scale's items describe.