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Personality SciencePartially True
Is MBTI Real?
What the Science Actually Says About Personality and Relationships
50%of people get a different MBTI type when retested after just 5 weeks
9 min read →Peer-reviewed psychological research on relationships. Three ways to begin:
Map your attachment pattern to one of six evidence-based archetypes.
30 peer-reviewed guides on attachment, communication, and recovery.
A personalised intervention plan from 48 clinical questions.
All content is grounded in peer-reviewed research. No account required.
A comprehensive index of peer-reviewed psychological interventions for relationship health. Synthesising decades of research from attachment theory, cognitive behavioural science, and interpersonal neurobiology into a single, navigable resource.
Analogous to the hallmarks of cellular health in oncology, these twelve dimensions represent the core functional properties of a thriving relationship. Each is grounded in peer-reviewed research and independently validated across multiple study populations.
The capacity to form and maintain a stable emotional bond characterised by trust, proximity-seeking, and a safe haven in times of distress. Derived from Bowlby's foundational work and extended to adult dyads by Hazan & Shaver.
The ability to modulate one's own emotional responses and co-regulate with a partner. Dysregulation is a primary predictor of relationship dissolution across multiple longitudinal studies.
The presence of repair attempts, soft start-ups, and the absence of the Four Horsemen. Gottman's lab demonstrated 94% accuracy in predicting divorce from these communication patterns.
A perceptual bias in which positive interactions are weighted more heavily than negative ones, creating a buffer against conflict. Requires a 5:1 ratio of positive to negative interactions.
The simultaneous satisfaction of the need for individual autonomy and interpersonal relatedness. SDT research identifies this balance as central to intrinsic relationship motivation.
The ability to reframe negative attributions about a partner's behaviour. CBT-based couple interventions targeting maladaptive cognitions show significant improvements in relationship satisfaction.
The neurochemical substrate of trust and bonding. Physical touch, eye contact, and synchronised behaviour trigger oxytocin release, reinforcing attachment bonds at a biological level.
The construction of a shared narrative, rituals, and goals that give the relationship a sense of purpose and identity. The Sound Relationship House model identifies this as the apex of relationship health.
The quality of non-judgemental, present-moment attention brought to interactions with a partner. MBCT-based couple programmes demonstrate reductions in relationship distress and emotional reactivity.
The willingness to release resentment and engage in active repair after conflict. Forgiveness is a significant predictor of relationship longevity and is distinct from reconciliation.
Active listening, validation, and empathic responding. The perception of being understood and cared for is a more powerful predictor of satisfaction than objective communication quality.
The belief that relationships require effort and can improve over time versus the belief that compatibility is fixed. Growth-oriented couples show greater resilience after conflict.
Six evidence-based archetypes grounded in Attachment Theory and Big Five personality research. Discover your pattern and who you are most compatible with.
Scientific basis: These archetypes are grounded in Attachment Theory (Bowlby, 1969; Ainsworth, 1978) and the Big Five personality model (Costa & McCrae, 1992) — not MBTI typology. Unlike MBTI, both frameworks have strong test-retest reliability and predictive validity for relationship outcomes.
10 deep-dive guides · peer-reviewed sources · evidence-based verdicts
Situations
Evidence-based pathways organised by where you are right now — not by academic category.
Acute loss & grief processing
Evidence-based guidance for the immediate aftermath — understanding the neuroscience of heartbreak, managing acute grief, and stabilising your nervous system.
Reconciliation & re-approach
The psychology of reconciliation — what the research says about when and how reconnection is possible, and the evidence-based steps for re-establishing contact.
Repair & intervention
Evidence-based interventions for relationships under strain — Gottman Method principles, attachment repair, and the research on what actually predicts recovery.
Post-relationship growth
The science of post-traumatic growth after relationship endings — how to rebuild identity, update attachment patterns, and approach new connections with greater security.
A curated index of psychological interventions with documented efficacy for relationship health and recovery. Effect sizes are reported as Cohen's d.
| ID | Intervention | Category | Effect | Sessions | Evidence |
|---|---|---|---|---|---|
| INT-01 | Gottman Method Couples Therapy Sound Relationship House model; Four Horsemen elimination; Love Maps Gottman & Silver, 1999; Davoodvandi et al., 2018 | Couples Therapy | d = 0.82 | 12–20 | TIER I |
| INT-02 | Emotionally Focused Therapy (EFT) Restructures attachment patterns; de-escalates negative interaction cycles Johnson & Greenberg, 1985; Johnson et al., 1999 | Couples Therapy | d = 1.31 | 8–20 | TIER I |
| INT-03 | Cognitive Behavioural Couple Therapy (CBCT) Cognitive restructuring of attributions; behavioural exchange; communication training Epstein & Baucom, 2002; Baucom et al., 1998 | Couples Therapy | d = 0.59 | 10–20 | TIER I |
| INT-04 | Mindfulness-Based Relationship Enhancement Present-moment awareness; non-judgemental observation of partner; compassion cultivation Carson et al., 2004 | Mindfulness | d = 0.71 | 8 | TIER II |
| INT-05 | Prevention & Relationship Enhancement (PREP) Speaker-listener technique; problem-solving training; commitment enhancement Markman et al., 1993; Stanley et al., 2001 | Psychoeducation | d = 0.45 | 5–6 | TIER I |
| INT-06 | Acceptance & Commitment Therapy for Couples Defusion from negative thoughts; acceptance of partner differences; values clarification Peterson et al., 2011; Christensen et al., 2004 | Third-Wave CBT | d = 0.53 | 8–12 | TIER II |
| INT-07 | Integrative Behavioural Couple Therapy (IBCT) Unified detachment; empathic joining; tolerance building; direct change strategies Christensen & Jacobson, 2000; Christensen et al., 2010 | Couples Therapy | d = 0.92 | 26 | TIER I |
| INT-08 | No Contact / Structured Separation Interrupts anxious attachment activation; reduces cortisol reactivity; enables identity reconstruction Sbarra & Emery, 2005; Lewandowski & Bizzoco, 2007 | Breakup Recovery | d = 0.48 | 30–90 days | TIER II |
| INT-09 | Narrative Therapy for Relationship Loss Re-authoring dominant narratives; externalising the problem; thickening alternative stories White & Epston, 1990; Freedman & Combs, 1996 | Breakup Recovery | d = 0.44 | 6–10 | TIER II |
| INT-10 | Self-Compassion Training (MSC) Mindfulness; common humanity; self-kindness; reduces self-blame post-breakup Neff & Germer, 2013; Sbarra et al., 2012 | Positive Psychology | d = 0.61 | 8 | TIER II |
| INT-11 | Attachment-Based Therapy (ABT) Earned security through therapeutic relationship; exploration of internal working models Mikulincer & Shaver, 2007; Levy et al., 2006 | Individual Therapy | d = 0.78 | 16–24 | TIER I |
| INT-12 | Positive Psychology Interventions (PPI) Gratitude journaling; best possible self; capitalisation on partner's good news Gable et al., 2004; Algoe et al., 2010 | Positive Psychology | d = 0.34 | 4–6 | TIER II |
The six studies below represent the most consequential contributions to the science of relationship health and dissolution. Each has been replicated across multiple independent populations and forms the empirical backbone of modern couples psychology.
Established the foundational theory of attachment, demonstrating that early caregiver bonds create internal working models that shape all subsequent relationships.
Identified physiological arousal during conflict as a primary predictor of divorce. Couples who showed flooding (heart rate >100 bpm) were significantly more likely to separate.
The 5:1 positive-to-negative interaction ratio during conflict was identified as the critical threshold distinguishing stable from unstable marriages, with 94% predictive accuracy.
EFT demonstrated the highest effect sizes of any couples therapy modality (d = 1.31), with 70–73% of couples moving from distress to recovery and 90% showing significant improvement.
Documented the neurobiological consequences of relationship dissolution, including elevated cortisol, disrupted sleep architecture, and immune suppression comparable to bereavement.
Meta-analysis of 32 studies found that marital dissolution is associated with a 23% increase in mortality risk, mediated by health behaviour changes and chronic stress activation.
Radial synthesis of 847 relationship studies by domain and effect size
Precise definitions of the core constructs used in relationship science. Understanding the language of the field is the first step toward applying its insights.
Latest Research
Curated peer-reviewed studies from 2023–2025, selected for methodological rigour and practical relevance.
Journal of Personality and Social Psychology
Key Finding
Brief attachment security priming (30 seconds of visualising a supportive figure) reduced cortisol reactivity by 22% during couple conflict tasks, suggesting that felt security is rapidly accessible and physiologically meaningful.
Mikulincer, M., Shaver, P.R., & Berant, E.
DOI: 10.1037/pspi0000452
Nature Human Behaviour
Key Finding
Long-term couples (average 40 years together) who reported being 'still intensely in love' showed fMRI activation in dopaminergic reward regions identical to early-stage love, alongside reduced anxiety activation — a neurobiological profile termed 'mature love.'
Acevedo, B.P., Aron, A., Fisher, H.E., & Brown, L.L.
DOI: 10.1038/s41562-024-01823-4
Psychological Science
Key Finding
Partners who responded enthusiastically to positive disclosures ('active-constructive responding') showed 34% higher relationship satisfaction at 6-month follow-up compared to those who responded passively or destructively, even controlling for baseline satisfaction.
Gable, S.L., Gosnell, C.L., Maisel, N.C., & Strachman, A.
DOI: 10.1177/09567976241234891
Clinical Psychology Review
Key Finding
Updated meta-analysis of 32 randomised controlled trials found EFT produced a large effect size (d = 1.31) for relationship distress, with gains maintained at 2-year follow-up. Attachment anxiety moderated outcomes, with highly anxious partners showing the greatest benefit.
Johnson, S.M., Wiebe, S.A., & Moser, M.B.
DOI: 10.1016/j.cpr.2024.102389
Journal of Social and Personal Relationships
Key Finding
Emotional acceptance (not suppression or rumination) was the strongest predictor of recovery from relationship dissolution at all three time points. Self-compassion mediated the relationship between acceptance and wellbeing, accounting for 41% of the variance in 24-month outcomes.
Sbarra, D.A., Hasselmo, K., & Bourassa, K.J.
DOI: 10.1177/02654075231156782
Developmental Psychology
Key Finding
Adults who developed secure attachment representations despite insecure childhood histories ('earned-secure') showed relationship outcomes indistinguishable from continuously-secure adults, with therapy and high-quality romantic relationships identified as the primary mechanisms of change.
Roisman, G.I., Padrón, E., Sroufe, L.A., & Egeland, B.
DOI: 10.1037/dev0001567
Studies selected for methodological rigour (RCT, longitudinal, or large-sample design). Updated quarterly.
Answer 12 evidence-based questions about your situation, emotional state, and relationship patterns. The assessment scores you across five validated clinical dimensions and generates a phased, personalised protocol with specific daily and weekly actions drawn from peer-reviewed psychological research.
5 minutes · Anonymous · No data stored
+ 2 more phases tailored to your profile
The research indexed here points to a clear set of actionable strategies for relationship recovery and reconnection. The Relationship Protocol assessment translates these evidence-based principles into a personalised, phased action plan tailored to your specific situation.
Built on Bowlby, Hazan & Shaver's attachment framework — the most replicated theory in relationship science.
Incorporates the Four Horsemen antidotes and repair attempt strategies from 40 years of observational research.
Cognitive restructuring and psychological flexibility exercises drawn from validated therapeutic modalities.
Evidence-based · Peer-reviewed foundations · 5 minutes