NU671 Unit 7 DBT Evidence Summary for a Young Man Example

Reviewed by Elspeth Marlowe, MSN, RN PMHNP Psychopathological Disorders and Psychotherapy Purdue University Global Free custom sample in 24 to 48h

This NU671 Unit 7 sample is an evidence summary on dialectical behavior therapy for a composite 26-year-old warehouse supervisor with borderline personality disorder and six episodes of self-harm this year. It was written for Purdue Global NU 671, PMHNP Psychopathological Disorders and Psychotherapy, a course in the MSN psychiatric mental health nurse practitioner program. It reviews the two Linehan trials, both in women, the McMain trial in which general psychiatric management did as well, and the 2020 Cochrane review with its low-certainty findings. It names three gaps for this patient, sex, setting and certainty, suggests adaptations and monitoring, and recommends starting general psychiatric management during the five-month wait.

CourseNU671 PMHNP Psychopathological Disorders and Psychotherapy
UnitUnit 7
Paper typeEvidence summary
LengthAbout 1,120 words, 7 pages double-spaced
FormatAPA 7 student paper
SchoolPurdue University Global
ProgramMSN
UpdatedSeptember 2026

Free sample paper for NU671 Unit 7

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Built Mostly on Women, Offered to a Man: An Evidence Summary on Dialectical Behavior Therapy for a 26-Year-Old With Borderline Personality Disorder and Repeated Self-Harm

[Student Name]

Purdue University Global

NU671: PMHNP Psychopathological Disorders and Psychotherapy

Unit 7 Evidence Summary

[Instructor Name]

[Date]

The patient is composite; details are bracketed. The studies are real and cited.

What this part is doingThe summary states its gap in the first lines: the evidence and the patient differ in a way that matters.
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The Referral

Mr. [J.] is a [26]-year-old warehouse supervisor referred after his third emergency department visit this year for cutting his forearms, and one overdose of [12] acetaminophen tablets after an argument with his girlfriend. He describes intense anger that comes and goes within hours, a long pattern of unstable relationships, chronic emptiness and fear of being left. He meets criteria for borderline personality disorder. The referral asks whether he should be placed on the waiting list for the local dialectical behavior therapy program, which runs a weekly skills group, individual therapy and phone coaching for a year.

The Question

For adults with borderline personality disorder and recurrent self-harm, does dialectical behavior therapy reduce self-harm, suicide attempts and symptom severity compared with other treatment, and how well does that evidence apply to a young man?

The Trials

1. Linehan (1991). The first randomized trial compared a year of dialectical behavior therapy with treatment as usual in chronically parasuicidal women with borderline personality disorder. It reported fewer and less medically severe parasuicidal acts and fewer inpatient days with the new therapy (Linehan et al., 1991). The trial was small and included only women.

2. Linehan (2006). This trial compared a year of dialectical behavior therapy with community treatment by experts, a demanding comparison that controlled for therapist expertise and allegiance, followed by a year of follow-up. Participants were [101] women with recent suicidal or self-injurious behavior. Those receiving dialectical behavior therapy were half as likely to make a suicide attempt, needed fewer hospitalizations for suicidal ideation, had fewer psychiatric hospitalizations and emergency visits, and were less likely to drop out (Linehan et al., 2006). The authors concluded that the effect could not be explained by general factors of expert psychotherapy. Again, all participants were women.

3. McMain (2009). This Canadian trial randomized [180] patients with borderline personality disorder and at least two episodes of self-harm to a year of dialectical behavior therapy or general psychiatric management, a structured approach delivered by psychiatrists with expertise in the disorder. Both groups improved substantially in self-harm, emergency use, borderline symptoms, depression and anger, and there were no significant differences between groups on any outcome (McMain et al., 2009). The sample included men, though fewer than women. The best-designed comparison with a structured alternative found no advantage for dialectical behavior therapy, which changes the question from whether it works to whether it works better than other good care.

What this part is doingEach trial is summarized with its comparison group and its sample, because both determine what it can say about Mr. J.
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The Systematic Review

A Cochrane review of psychological therapies for borderline personality disorder included [75] randomized trials with [4,507] participants, predominantly female, with mean ages from about [15] to [46]. Dialectical behavior therapy was the subject of about a third of the trials. Compared with treatment as usual, it reduced borderline symptom severity, self-harm and impairment in psychosocial functioning. The certainty of evidence was rated low for these findings (Storebø et al., 2020).

What the Evidence Supports

Taken together, the evidence supports three conclusions. First, dialectical behavior therapy reduces self-harm and borderline symptoms compared with usual care, with low-certainty evidence from many trials. Second, it reduced suicide attempts compared with expert community treatment in one well-controlled trial of women. Third, a structured, disorder-specific alternative, general psychiatric management, produced similar results in a large trial.

Where the Support Thins for Mr. [J.]

Three gaps affect how directly the evidence applies to him.

1. Sex. The key early trials enrolled only women, and the review describes its trials as predominantly female. There is little direct evidence about whether men respond differently to the therapy, whether they engage with a skills group that is mostly female, or whether outcomes such as anger and aggression, which may be more prominent in some men, change as much.

2. Setting. The trials were conducted in specialized programs with trained therapists and consultation teams. The local program may differ in fidelity.

3. Certainty. The review rated the evidence as low certainty, partly because of risk of bias and small samples. Findings may change as more trials are done.

These gaps do not mean the therapy will not help him. They mean the confidence one can place in the evidence is lower for him than for a woman of similar age and severity.

How the Program Could Adapt for Him

If he joins the program, three adjustments may help him engage. The first concerns the group. A skills group in which he is the only man can feel exposing, and he may drop out early for reasons that have little to do with the therapy itself. Asking the program whether another man is enrolled, or whether he could join a cohort with more mixed membership, is a practical step. The second concerns the targets. His self-harm follows anger in relationships more than sadness, so the emotion regulation and interpersonal effectiveness modules may matter more to him than distress tolerance alone, and his individual therapist can weight the diary card toward anger episodes. The third concerns the language used. He describes himself as someone who "handles things" and dislikes the word therapy; framing the program as skills training for strong emotions may make it more acceptable.

How Progress Will Be Judged

The evidence gaps make local monitoring more important. His self-harm episodes, emergency visits and anger outbursts will be counted monthly, alongside a borderline symptom scale at intake and every three months. If he is receiving general psychiatric management first, the same measures will be used, so the team can see whether the switch to the full program adds anything for him. Monitoring of this kind cannot close the evidence gap, but it can tell the team whether the treatment is working for this man, which is the question the trials could not answer.

Recommendation

Mr. [J.] should be offered dialectical behavior therapy, with an honest explanation that most of the research involved women, and his engagement and outcomes should be monitored closely. Because the local waiting list is [five] months, he should not wait without treatment. General psychiatric management, which matched dialectical behavior therapy in the McMain trial and can be delivered by the outpatient psychiatric team, is a reasonable way to begin now, with a safety plan, a clear crisis pathway and attention to the relationship stresses that precede his self-harm. If he engages well and continues to self-harm, the case for moving him into the full program when a place opens is strengthened.

What this part is doingThe recommendation uses the equivalent alternative to cover the waiting period, which is where the evidence summary becomes a plan.
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References

Linehan, M. M., Armstrong, H. E., Suarez, A., Allmon, D., & Heard, H. L. (1991). Cognitive-behavioral treatment of chronically parasuicidal borderline patients. Archives of General Psychiatry, 48(12), 1060-1064. https://doi.org/10.1001/archpsyc.1991.01810360024003

Linehan, M. M., Comtois, K. A., Murray, A. M., Brown, M. Z., Gallop, R. J., Heard, H. L., Korslund, K. E., Tutek, D. A., Reynolds, S. K., & Lindenboim, N. (2006). Two-year randomized controlled trial and follow-up of dialectical behavior therapy vs therapy by experts for suicidal behaviors and borderline personality disorder. Archives of General Psychiatry, 63(7), 757-766. https://doi.org/10.1001/archpsyc.63.7.757

McMain, S. F., Links, P. S., Gnam, W. H., Guimond, T., Cardish, R. J., Korman, L., & Streiner, D. L. (2009). A randomized trial of dialectical behavior therapy versus general psychiatric management for borderline personality disorder. American Journal of Psychiatry, 166(12), 1365-1374. https://doi.org/10.1176/appi.ajp.2009.09010039

Storebø, O. J., Stoffers-Winterling, J. M., Völlm, B. A., Kongerslev, M. T., Mattivi, J. T., Jørgensen, M. S., Faltinsen, E., Todorovac, A., Sales, C. P., Callesen, H. E., Lieb, K., & Simonsen, E. (2020). Psychological therapies for people with borderline personality disorder. Cochrane Database of Systematic Reviews, 2020(5), Article CD012955. https://doi.org/10.1002/14651858.CD012955.pub2

NU671 Unit 7 instructions, in plain terms

The Unit 7 evidence summary asks you to gather the research on a psychotherapy for a specific referral and judge how well it applies. Prompts usually expect a focused question, the key randomized trials with their samples and comparison groups, a systematic review if one exists, a statement of what the evidence supports, and an analysis of how the evidence fits the patient. Four to six pages is common. Graders reward summaries that describe each trial's comparison condition, since that determines what it shows, and that name gaps specifically rather than calling for more research. The recommendation should follow from both the strength of the evidence and the practical situation, such as a waiting list.

How the NU 671 Unit 7 example is put together

The referral is described first, followed by a one-sentence question. Three trials are then summarized in a numbered list, each with its design, comparison, sample and result, and the McMain summary carries a highlighted sentence on what an equal alternative means. The Cochrane review is summarized with its size, the share of trials on the therapy and the certainty rating. A section states three conclusions the evidence supports. A section on gaps covers sex, setting and certainty. Two sections suggest how the program could adapt for him and how progress will be monitored. The recommendation uses general psychiatric management to cover the waiting period. The references follow APA order.

Where the points sit in the NU671 Unit 7 rubric

The rubric usually weighs the focused question, the selection and description of studies, appraisal of certainty, applicability to the patient and the recommendation. Selection earns full points when the landmark trial, a strong replication, an active comparison and a systematic review are all included. Description is checked on sample, comparison and outcome for each study. Certainty points go to summaries that report the review's own rating and explain it. Applicability is scored on specific gaps between the research samples and the patient. The recommendation row rewards a plan that uses the evidence and the practical constraints together rather than recommending the therapy simply because it has the most trials. Accurate APA references matter as well.

Common NU671 Unit 7 mistakes, and how to avoid them

The most common error is listing trials without their comparison groups, which hides the difference between beating usual care and beating expert care. Another is ignoring a trial in which an alternative did equally well. Students often describe the evidence as strong when the systematic review rates it low. Some summaries miss that the key trials enrolled only women. Others recommend the therapy without addressing a long waiting list, leaving a patient who self-harms without care. And a gaps section that says only "more research is needed" misses the point of the assignment, which is to name exactly where the evidence stops for this patient.

Get an NU671 Unit 7 example written to your instructions

Evidence summaries hinge on the therapy, the disorder and the case, so name all three from your NU671 Unit 7 prompt and include the rubric. A first summary is free and ready within 24-48h, every trial entered on one template, the comparison condition named each time, and a synthesis saying where support thins for the person described. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.

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NU671 Unit 7 questions, answered

How many studies should an evidence summary include?

Enough to show the shape of the evidence: usually the landmark trial, the strongest replication, any major trial against an active comparison, and a systematic review. Five to eight is common. More studies add little if they repeat one design, while leaving out a key contrary finding costs more than any number of confirming ones.

Can the summary rely on a systematic review alone?

It can lean on one, but most prompts want individual trials described too. A review tells the reader how strong the overall evidence is; the trials show what was tested and against what. Citing both, and noting where the review's certainty rating is low, demonstrates that the summary reads evidence rather than repeating conclusions.

How should gaps in the evidence be described?

Specifically. Rather than a general call for further research, name the population, comparison or outcome that has not been studied adequately, such as men, older adults or follow-up beyond two years. Then say what that gap means for the case: whether it lowers confidence, changes the recommendation, or simply needs stating as a limit.

Where can I find a free NU671 Unit 7 sample paper?

This page gives the whole NU671 Unit 7 evidence summary, with three trials, the Cochrane review, the evidence gaps for a young man, adaptations, monitoring and the recommendation, plus four references. A summary on another therapy or referral can be requested.

Is DBT better than other treatment in NU671 Unit 7?

Better than usual care, according to the Cochrane review, though with low-certainty evidence, and better than community treatment by experts for suicide attempts in one trial of women. In the McMain trial, general psychiatric management produced similar results on every outcome.