Eight selected peer-reviewed papers on attraction, personality, attachment, and relationship development. This is a starting collection, not an exhaustive search or a partner-selection guide. Source findings and proposed BWB uses are distinguished within each card.
How marriages change
Karney, B. R., & Bradbury, T. N. (1995). The longitudinal course of marital quality and stability: A review of theory, method, and research. Psychological Bulletin, 118(1), 3–34. DOI. Checked source.
Question and design. What can repeated observations tell us about marriage that a single questionnaire cannot? This peer-reviewed review evaluated 115 longitudinal studies covering more than 45,000 marriages. It compared theories, methods, and findings about marital quality and stability.
Access checked: abstract and bibliographic record.
Plain-language finding. A photograph of a couple today cannot show how they arrived there or where they are heading. The review makes change over time a central research problem and proposes an integrating model. Its methodological contribution is to distinguish the quality of a marriage from whether it continues.
Limits and BWB relevance. The abstract supports the review's scope, not a numerical forecast for an individual marriage. The literature predates many contemporary sampling and analysis practices. For BWB, this suggests measuring satisfaction and continuation separately and repeating observations. A useful question is: what changed between two assessments, including circumstances outside the relationship? A historical synthesis cannot validate typologies or establish that preserving a relationship is always a desirable outcome.
Who resembles whom—and does it help?
Luo, S., & Klohnen, E. C. (2005). Assortative mating and marital quality in newlyweds: A couple-centered approach. Journal of Personality and Social Psychology, 88(2), 304–326. DOI. Checked source.
Question and design. Are spouses alike, and is resemblance associated with a better marriage? This peer-reviewed observational study examined 291 newlywed couples using several domains of similarity and self-report and observer indicators of marital quality.
Access checked: abstract and bibliographic record.
Plain-language finding. Partners resembled each other more in attitudes than in personality. Yet the reported association with marital quality concerned personality-related similarity, not attitude-related similarity. Attachment-profile resemblance was particularly informative. Choosing someone with similar views and feeling satisfied together are therefore distinct questions.
Limits and BWB relevance. These are associations among newlyweds, not a randomized test of partner selection or evidence of lifelong outcomes. Profile resemblance also depends on how similarity is calculated. Compare the much smaller additional similarity contribution in Dyrenforth et al. below; the designs and indices differ. For BWB, this motivates separate questions about actual commitments, personality scores, and perceived understanding. It does not make shared values irrelevant to moral boundaries, and it does not establish a preferred pairing of typological patterns.
Measured similarity and feeling alike
Montoya, R. M., Horton, R. S., & Kirchner, J. (2008). Is actual similarity necessary for attraction? A meta-analysis of actual and perceived similarity. Journal of Social and Personal Relationships, 25(6), 889–922. DOI. Checked source.
Question and design. Does attraction depend on being alike or believing that we are alike? This peer-reviewed meta-analysis combined 460 effect sizes from 313 laboratory and field investigations. Its scope is interpersonal attraction, including settings beyond romantic couples.
Access checked: abstract and bibliographic record.
Plain-language finding. Measured similarity was associated with attraction in studies without interaction or with brief interaction, but its association was not significant in existing relationships. Perceived similarity remained associated with attraction across these settings. The everyday statement “we are alike” can therefore describe a feeling of connection as well as matching questionnaire answers.
Limits and BWB relevance. Attraction is not marital stability, safety, or successful coordination. A nonsignificant subgroup result does not prove similarity never matters; different stages and methods should remain visible. Nor does perceived similarity establish accurate understanding. For BWB, collect each person's own answers and their guesses about the other's answers separately, then examine discrepancies. This is a proposed measurement practice, not a validated compatibility score or support for typological matching.
Personality and a partner's satisfaction
Malouff, J. M., Schutte, N. S., Bhullar, N., Thorsteinsson, E. B., & Rooke, S. E. (2010). The Five-Factor Model of personality and relationship satisfaction of intimate partners: A meta-analysis. Journal of Research in Personality, 44(1), 124–127. DOI. Checked source.
Question and design. Is one person's personality associated with how satisfied their partner feels? This peer-reviewed meta-analysis included 19 samples with 3,848 participants in heterosexual intimate relationships.
Access checked: abstract and bibliographic record.
Plain-language finding. Lower neuroticism and higher agreeableness, conscientiousness, and extraversion were associated with greater partner satisfaction. A possible everyday illustration is that a partner's usual emotional responses and reliability may be relevant to shared life. That illustration is an interpretation, not a mechanism demonstrated by the meta-analysis.
Limits and BWB relevance. Correlation does not establish that changing a trait changes relationship quality. These findings concern trait levels rather than the additional benefit of partners having matching profiles. The studied population also limits generalization. BWB should compare any new proposed predictor with established continuous trait measures and obtain both partners' satisfaction reports. The comparison must ask what a new variable adds beyond these baselines. Results cannot justify excluding a person, infer moral worth, or validate Socionics, Psychosophy, or Temporistics.
What does similarity add?
Dyrenforth, P. S., Kashy, D. A., Donnellan, M. B., & Lucas, R. E. (2010). Predicting relationship and life satisfaction from personality in nationally representative samples from three countries: The relative importance of actor, partner, and similarity effects. Journal of Personality and Social Psychology, 99(4), 690–702. DOI. Checked source.
Question and design. Does personality resemblance explain satisfaction beyond each spouse's own traits? This peer-reviewed analysis used national samples from Australia, the United Kingdom, and Germany; the abstract reports N = 5,278, 6,554, and 11,418 respectively.
Access checked: abstract and bibliographic record.
Plain-language finding. After accounting for each person's and their partner's traits, similarity explained less than an additional 0.5% of the variance in life and relationship satisfaction. Having characteristics associated with satisfaction and having the same characteristics as a partner are different statistical propositions.
Limits and BWB relevance. This percentage is an incremental result within the fitted models, not the probability that a couple will succeed. Observational associations do not show causation, and three countries do not represent every population. The smaller similarity finding should be read alongside Luo and Klohnen's profile-based findings, without assuming the measures are interchangeable. BWB should test whether pair-specific hypotheses add predictive information beyond both individuals' measured characteristics. Prespecifying that comparison would prevent an apparent pair effect from merely repackaging an individual trait.
What precedes a breakup?
Le, B., Dove, N. L., Agnew, C. R., Korn, M. S., & Mutso, A. A. (2010). Predicting nonmarital romantic relationship dissolution: A meta-analytic synthesis. Personal Relationships, 17(3), 377–390. DOI. Checked source.
Question and design. Which measured factors precede the end of an unmarried romantic relationship? This peer-reviewed meta-analysis synthesized 137 studies with 37,761 participants, comparing individual, relationship, and external predictors.
Access checked: publisher full HTML; methods and results available.
Plain-language finding. Relationship variables such as commitment and love generally predicted dissolution better than broad personality variables. Social-network support also mattered. Asking how invested someone feels in this particular relationship can therefore be more informative about continuation than describing their general disposition.
Limits and BWB relevance. These are aggregated associations, not a breakup detector. Predictors came from different sets of studies, and ending a relationship is not equivalent to poor moral conduct or failure. A person's dependence also cannot establish that remaining together is safe or freely chosen. For BWB, record relationship stage, commitment, perceived alternatives, investments, and social context separately from personality measures. Ask who initiated a separation when interpreting follow-up data. Such variables provide comparison baselines; they do not justify an automated stay-or-leave recommendation or validate typological relationship categories.
Anxiety, avoidance, and relationship quality
Li, T., & Chan, D. K.-S. (2012). How anxious and avoidant attachment affect romantic relationship quality differently: A meta-analytic review. European Journal of Social Psychology, 42(4), 406–419. DOI. Checked source.
Question and design. Are attachment anxiety and avoidance associated with different relationship difficulties? This peer-reviewed meta-analysis covered 73 studies, 118 independent samples, and 21,602 individuals, separating cognitive, emotional, and behavioral outcomes.
Access checked: abstract and bibliographic record.
Plain-language finding. Both dimensions were associated with poorer relationship quality. Avoidance had stronger negative associations with satisfaction, connectedness, and support; anxiety was more closely associated with conflict. In everyday language, fear of losing closeness and discomfort with closeness need not have identical relational correlates.
Limits and BWB relevance. The word “affect” in the title does not make the pooled associations causal. Self-report and observational interaction measures produced different associations, so measurement method matters. Anxiety and avoidance are dimensions here, not diagnoses or permanent kinds of people. For BWB, use appropriate attachment measures as comparison variables and distinguish self-described experience from observed interaction. Questions about seeking reassurance or withdrawing should remain open to stress and context as alternative explanations. No attachment score supplies a partner verdict or validates the project's typologies.
Does communication come first?
Lavner, J. A., Karney, B. R., & Bradbury, T. N. (2016). Does couples' communication predict marital satisfaction, or does marital satisfaction predict communication? Journal of Marriage and Family, 78(3), 680–694. DOI. Checked source.
Question and design. Does communication precede satisfaction, or does satisfaction precede communication? This peer-reviewed longitudinal study observed newlywed communication four times at nine-month intervals and compared it with satisfaction reports. The accessible abstract does not state sample size.
Access checked: abstract and bibliographic record.
Plain-language finding. At the same time point, more satisfied couples communicated more positively and effectively. Across time, associations appeared in both directions, but neither direction was particularly robust. Seeing a happy couple talk well today is therefore insufficient to establish what will change their relationship tomorrow.
Limits and BWB relevance. Observational follow-up is not random assignment to a communication intervention. Weak predictive links do not establish that communication training is useless, nor that harmful behavior is harmless. For BWB, repeat both behavioral observation and satisfaction measurement instead of treating one observed conversation as a causal explanation. Record external circumstances and test competing temporal directions. This paper supplies a methodological challenge to simple explanations, not an individual prognosis or evidence for a typological communication mechanism.
Source assessment
Four meta-analyses, one longitudinal literature review, two observational personality/similarity analyses, and one longitudinal communication study. Bibliographic records and abstracts were checked on 2026-09-06; Le et al.'s publisher page additionally exposed methods and results. The search record documents access limits.
Attributed claims
The cards report outcome-specific associations. Attraction, satisfaction, and relationship continuation are different outcomes; no common compatibility metric is extracted.
Evidence and verification
Each card links to a DOI and the checked record. Sample counts are reproduced only where the accessed source states them. Most cards are abstract-level summaries; a missing effect size is not an estimated zero.
Shared limitations
Population, period, measurement, and selection differences constrain transfer. Reviews may include overlapping primary studies and should not be counted as independent participant pools. This collection is historically oriented and does not claim coverage of all evidence through 2026.
What BWB takes forward
As a research-design proposal: use established trait and attachment measures, both partners' reports, observed interaction, relationship stage, social context, and repeated outcomes as comparison baselines. These are recommendations for testing BWB, not results of a BWB validation study.
Open disagreements
Luo and Klohnen's positive profile-similarity findings and Dyrenforth et al.'s small incremental similarity results deserve direct methodological comparison. They cannot be resolved by choosing the result most congenial to BWB. Perceived similarity also requires separation from independently measured similarity.
Excluded inferences
These papers do not validate typologies, assign moral worth, establish an ideal partner, or equate remaining together with consent and safety. Historical publication dates are retained; later evidence may revise the picture.
Continue reading
Catalog of Scientific Research on Compatibility · A History of Attempts to Solve Human Compatibility.