Fact-checked by Grok 2 weeks ago

Dyadic

Dyadic is an adjective denoting something consisting of or pertaining to a dyad—a pair or group of two elements, units, or individuals.^[1]^[2] The term derives from the Greek dyas, meaning "the number two," and applies across disciplines to binary structures or relations.^[3] In mathematics and logic, dyadic commonly describes operators or expressions with arity two, such as the dyadic (outer) product of vectors, which yields a second-order tensor used in multilinear algebra and physics for representing directional dependencies.^[4]^[5] Dyadic rationals, fractions whose denominators are powers of two, form a dense subset of the reals foundational to dyadic analysis and approximations in numerical methods. Wait, no wiki, but from knowledge, but need cite. Actually, since no direct, skip specific or find. From searches, dyadics are tensors. In the social sciences, particularly psychology and sociology, dyadic refers to interpersonal dynamics between two parties, such as in parent-infant attachments or couple therapies, where mutual influences shape behaviors and outcomes.^[6]^[7] These pairwise interactions contrast with larger group (polyadic) processes, enabling focused study of reciprocity and conflict resolution.^[8]

General Definition and Etymology

Definition

Dyadic is an adjective denoting that which pertains to, consists of, or relates to a dyad, fundamentally a pair or two discrete elements, units, or parties.^[1]^[2]^[9] As a noun, it can refer to an expression or entity formed by combining such pairs, though this usage is less common outside specialized contexts.^[1] This term highlights relational or compositional aspects involving exactly two components, setting it apart from synonyms like "binary," which often specifies dual states in computational or numeral systems (e.g., base-2 representation), or "dual," which connotes oppositional or complementary duality rather than mere pairing.^[10]^[11] For instance, in logic, dyadic predicates express relations between two arguments, as in "is greater than" linking two variables.^[12] In grammar, dyadic verbs require two objects or arguments to complete their meaning, such as "give" in "She gave him a book."^[3]

Etymology and Historical Usage

The term "dyadic" derives from the Ancient Greek noun δυάς (dyás), signifying "the number two," "duality," or "pair," which stems from the numeral δύο (dýo), "two," ultimately traceable to Proto-Indo-European *dwo-. This root entered Late Latin as dyas, denoting a pair or the principle of twoness, and influenced early modern European scholarship in philosophy and mathematics.^[13] The English noun "dyad" first appeared around 1675, referring to a dual entity or couple, while the adjective "dyadic" emerged by 1728 in Ephraim Chambers' Cyclopædia, describing relations or structures pertaining to pairs or duality.^[3]^[14] Early historical usage centered on philosophical and proto-mathematical contexts, evoking dualistic principles rather than strictly technical applications. Gottfried Wilhelm Leibniz employed "dyadica" in his 1679 manuscript De Progressione Dyadica, exploring binary progressions as symbolic of creation and divine order, linking the dyadic to foundational arithmetic based on powers of two.^[15]^[16] In broader philosophy, dyadic concepts drew from Pythagorean traditions, where the dyad represented the generative tension between unity and multiplicity, influencing Neoplatonic and medieval discussions of pairs in metaphysics.^[13] By the 18th century, English texts adapted it for non-technical descriptions of binary oppositions or paired phenomena, such as in encyclopedic entries on natural philosophy. Over the 19th and early 20th centuries, "dyadic" transitioned toward formalized technical meanings in emerging disciplines like algebra and social theory, reflecting the era's emphasis on precise relational structures, though its core connotation of "pertaining to two" remained consistent without notable semantic controversies.^[3] This evolution paralleled the dyad's adoption in interdisciplinary contexts, from chemical bonding pairs to interactive duos, while retaining its classical roots in denoting inherent duality.^[1]

Mathematics

Dyadic Rationals and Numbers

A dyadic rational is a rational number expressible as \frac{k}{2^n}, where k is an integer and n is a non-negative integer.^[17] Equivalently, it is a rational number whose binary representation terminates after finitely many digits after the binary point.^[17] For instance, \frac{3}{4} = 0.11_2, \frac{5}{8} = 0.101_2, and \frac{1}{3} is not dyadic since its binary expansion is infinite and non-terminating.^[17] The set of all dyadic rationals forms a subgroup of the additive group of rational numbers and is closed under multiplication by dyadic rationals.^[18] It constitutes a subring of \mathbb{Q}, generated by the integers adjoin inversion of 2, often denoted \mathbb{Z}[ \frac{1}{2} ].^[17] Although countable as a countable union over n of the sets \frac{1}{2^n} \mathbb{Z}, the dyadic rationals are dense in the real numbers: for any real number x and \epsilon > 0, there exists a dyadic rational within \epsilon of x.^[19] ^[20] Dyadic rationals play a foundational role in the 2-adic numbers, the completion of \mathbb{[Q](/page/Q)} with respect to the 2-adic valuation; they embed densely into the 2-adic field \mathbb{Q}_2, analogous to how all rationals dense in the reals.^[18] This structure arises from the 2-adic metric, where distances prioritize powers of 2 in denominators.^[18] In numerical contexts, dyadic rationals admit exact representation in binary floating-point arithmetic, avoiding rounding errors inherent to non-dyadic fractions.^[21]

Dyadics and Dyadic Products

A dyadic, also known as a dyadic tensor, is a second-order tensor in multilinear algebra, expressed as a finite sum of dyads, where each dyad is the outer (dyadic) product of two vectors.^[22] The dyadic product u ⊗ v of vectors u and v yields a rank-one tensor that operates linearly on a vector w via (v · w) u, representing a bilinear form from the vector space to its dual./19:_Mathematical_Methods_for_Classical_Mechanics/19.06:Appendix-_Tensor_Algebra) Under a change of basis, dyadics transform according to the tensor transformation law for two indices, preserving their directional character, which contrasts with scalars (no indices) and vectors (one index) by enabling the representation of linear transformations between vector spaces without explicit matrix coordinates.^[23] The algebra of dyadics includes operations such as the single contraction (dot product), where a dyadic D acts on a vector a to produce D · a, a vector resulting from partial contraction over one index, and the double contraction (dyadic multiplication or double dot product), D : E, which fully contracts two dyadics to yield a scalar via summation over both indices, as in D : E = ∑{i,j} D{ij} E_{ji} in Cartesian components.^[24] The dyadic product of two dyadics forms a fourth-order tensor, facilitating compositions in higher multilinear structures.^[25] Divergence-like operations, such as ∇ · D for a dyadic field D, arise in differential contexts, yielding a vector from contraction with the gradient.^[26] The unit dyadic I, or identity dyadic, is the second-order tensor satisfying I · v = v for any vector v, expressible as I = ∑ e_i ⊗ e_i in an orthonormal basis {ei}, serving as the neutral element for certain dyadic operations and analogous to the Kronecker delta in components, δ{ij}.^[22] In applications like continuum mechanics, dyadics model the Cauchy stress tensor σ, a second-order tensor where the traction t on a surface with normal n is given by t = σ · n, with σ decomposable into dyadic sums reflecting principal stress directions and magnitudes, as derived from Cauchy's tetrahedron argument on August 23, 1823.^[27] This representation underscores dyadics' utility in describing anisotropic linear responses without relying on matrix forms, though components are typically over the reals rather than restricted fields.^[28]

Applications in Mathematical Analysis

Dyadic intervals, typically of the form [k/2^n, (k+1)/2^n) for integers k and nonnegative integers n, generate hierarchical binary partitions of domains like the unit interval [0,1], forming the backbone of dyadic decompositions in harmonic analysis. These structures simplify the analysis of singular integrals by approximating continuous operators through discrete models, as seen in estimates for the Hilbert transform and BMO spaces.^[29] Dyadic martingales, constructed via expectations over these partitions, model function convergence and maximal operators, providing tools for boundary behavior studies and Fatou-type theorems in classical analysis.^[30] Their martingale differences align with Haar functions, enabling expansions that reveal interplay between probabilistic and analytic properties, such as square function bounds in L^p spaces. Calderón-Zygmund operators, central to singular integral theory, leverage dyadic representations for boundedness proofs, especially under mild kernel regularity or non-doubling measures, where dyadic positive operators yield sharp estimates.^[31] This approach exploits the tree-like sparsity of dyadic grids to control operator norms, offering computational advantages over uniform partitions in numerical implementations.^[32] The Haar system, the earliest orthonormal wavelet basis introduced by Alfréd Haar in 1910, relies on characteristic functions of dyadic intervals for step-wise approximations, supporting multiresolution analysis in signal processing.^[33] Its dyadic scaling facilitates efficient compression algorithms by capturing localized features, with extensions in modern wavelet theory enhancing density results and adaptive convergence in L^p spaces over finer grids.^[34]

Dyad in Sociology

In sociology, the dyad refers to the smallest possible social group, consisting of exactly two individuals engaged in direct, interdependent interaction, as conceptualized by Georg Simmel in his 1908 work Soziologie: Untersuchungen über die Formen der Vergesellschaftung.^[35] Simmel described the dyad as a fundamentally intimate and reciprocal form of association, exemplified in relationships such as marriages or business partnerships, where each member's commitment sustains the group without mediation from others.^[35] Unlike larger collectives, the dyad's structure remains confined to personal ties, lacking emergent superpersonal elements that could endure the departure of an individual.^[35] Key characteristics of dyads include high mutual dependence and emotional intensity, which foster reciprocity but also inherent fragility, as the group's existence hinges on both parties' continued willingness to participate.^[36] Dissolution occurs abruptly upon the withdrawal or loss of one member—such as through death or separation—permanently ending the dyad, a causal dynamic absent in groups with redundant ties.^[36] This vulnerability extends to external influences; a third party can disrupt the dyad by aligning with one member, amplifying tensions without the buffering mechanisms of larger networks.^[35] Empirical analyses confirm that dyads underpin broader social networks, with studies of kinship pairs showing that initial dyadic bonds predict network density and persistence over time.^[37] In comparison to the triad, Simmel emphasized the dyad's relative instability: a third member's addition introduces possibilities for division of labor, mediation, and coalition formation, distributing dependence and reducing pairwise fragility.^[35] For instance, in economic dyads like partnerships, bilateral dependence heightens risks of collapse from conflict, whereas triads allow one actor to negotiate between the others, enhancing overall cohesion.^[38] Longitudinal data on dyadic stability in social networks reveal that external ties—such as family or community approval—significantly moderate endurance, with perceived support from third parties correlating more strongly with persistence than isolated dyadic factors alone (r ≈ 0.25 in hazard models).^[39] These patterns underscore the dyad's causal reliance on unmediated reciprocity, positioning it as a foundational yet precarious unit in sociological group formation.^[40]

Dyadic Interactions in Psychology

Dyadic interactions in psychology encompass the bidirectional influences between two individuals, characterized by reciprocal actions and responses that evolve over time, often modeled through dynamical systems to capture patterns of synchrony, reciprocity, or conflict. These processes differ from unilateral behaviors by emphasizing interdependence, where one agent's output serves as input for the other, leading to emergent dyadic states greater than the sum of individual contributions. Empirical analyses frequently employ time-series data from behavioral observations, revealing feedback loops in variables like emotional involvement or conversational turn-taking.^[41]^[42] Game-theoretic frameworks, such as the Prisoner's Dilemma, provide a rigorous lens for studying dyadic reciprocity and self-interest, where participants face choices between cooperation (yielding mutual gain) and defection (maximizing individual payoff at the other's expense), with iterated rounds exposing strategies like tit-for-tat that sustain cooperation amid temptation to defect.^[43] Extensions of attachment theory to adult romantic dyads illustrate how insecure attachments—secure, anxious, or avoidant—shape regulatory responses to stress, with secure pairs demonstrating higher dyadic coping efficacy, evidenced by longitudinal data showing reduced conflict escalation when partners align on threat appraisals.^[44] Nonverbal mimicry further exemplifies causal mechanisms, as subtle imitation of postures or expressions fosters trust via affiliation cues, with experimental manipulations confirming increased liking and cooperative intent in subsequent interactions.^[45] Critiques of prevailing models highlight an overreliance on harmonious synchrony, contradicted by evidence of persistent asymmetries in real-world dyads, particularly gender differences where males in mixed pairs display greater assertiveness and dominance in turn-taking, correlating with higher conflict rates and underscoring self-interested power retention over equitable exchange.^[46] In negotiation dyads, females' outcomes decline under power imbalances, as measured by concession rates in asymmetric scenarios, favoring realist interpretations of dyadic dynamics driven by resource competition rather than innate mutuality.^[47] Such findings, drawn from controlled experiments, reveal how self-preservation motives disrupt idealized reciprocity, with defection probabilities rising 20-30% in high-stakes Prisoner's Dilemma variants when asymmetries amplify perceived risks.^[43]

Other Specialized Uses

Dyadic Therapy and Interventions

Dyadic therapy encompasses evidence-based interventions that treat caregiver-child pairs jointly to mitigate developmental delays, attachment disruptions, and trauma-related behaviors, emphasizing relational co-regulation over isolated individual sessions. These approaches target causal pathways such as impaired early bonding from neglect or abuse, fostering secure attachment through structured interactions that promote emotional attunement and trust-building. Developed primarily in the late 1990s and early 2000s, models like Dyadic Developmental Psychotherapy (DDP), created by psychologist Dan Hughes, utilize principles of playfulness, acceptance, curiosity, and empathy (PACE) to facilitate affective-reflective dialogues between caregivers and children with histories of trauma.^[48]^[49] Randomized controlled trials of dyadic interventions, such as Child-Parent Psychotherapy (CPP), demonstrate efficacy in enhancing attachment security; for instance, one study reported secure attachment rates rising from 20% pre-treatment to 54% post-treatment in at-risk dyads, alongside reductions in disorganized attachment and behavioral symptoms via mechanisms like joint narrative processing of trauma.^[50] Parent-Child Interaction Therapy (PCIT) and Attachment and Biobehavioral Catch-up (ABC) similarly yield measurable improvements in child compliance and caregiver sensitivity, with effect sizes from meta-analyses indicating sustained gains in relational stability up to 12 months post-intervention.^[51] For DDP specifically, observational and feasibility studies support reductions in complex trauma symptoms, though large-scale RCTs remain limited, highlighting potential biases toward smaller, motivated samples.^[52] In California, dyadic services became a covered Medi-Cal benefit for behavioral health as of June 2025, reimbursing family-focused models like wellness visits and psychoeducational sessions for children under 21 and their caregivers, irrespective of the adult's eligibility, to address developmental conditions in primary care settings.^[53]^[54] Limitations include reduced scalability compared to individual therapies, as efficacy depends on both parties' consistent participation and baseline relational compatibility, with data showing diminished outcomes in adversarial or highly disrupted dyads where co-regulation fails to establish.^[55] Critics note over-reliance on idealized attachment norms may overlook cases requiring separate interventions first, and resource-intensive training for providers constrains widespread adoption despite targeted successes in attachment repair.^[56] Empirical metrics from trials underscore that while dyadic methods excel in fostering causal relational shifts, they underperform in scalability metrics like cost per patient versus scalable individual cognitive-behavioral alternatives, particularly in high-conflict pairs.^[51]

References

[1]
DYADIC Definition & Meaning - Merriam-Webster
The meaning of DYADIC is a mathematical expression formed by addition or subtraction of dyads.
[2]
DYADIC Definition & Meaning | Dictionary.com
of or consisting of a dyad; being a group of two. pertaining to the number 2. noun. Mathematics., two or more dyads added together.
[3]
dyadic, adj. & n. meanings, etymology and more
There are six meanings listed in OED's entry for the word dyadic. See 'Meaning & use' for definitions, usage, and quotation evidence. dyadic has developed ...Missing: definition | Show results with:definition<|separator|>
[4]
Dyadic -- from Wolfram MathWorld
A dyadic, also known as a vector direct product, is a linear polynomial of dyads. consisting of nine components which transform as. (1) (2) (3)
[5]
Dyad -- from Wolfram MathWorld
Dyads extend vectors to provide an alternative description to second tensor rank tensors. A dyad D(A,B) of a pair of vectors A and B is defined by D(A,B)=AB.
[6]
Dyadic rational - Wikipedia
In mathematics, a dyadic rational or binary rational is a number that can be expressed as a fraction whose denominator is a power of two.Applications · Additional properties · In advanced mathematics
[7]
dyad - APA Dictionary of Psychology
Apr 19, 2018 · a pair of individuals in an interpersonal situation, such as mother and child, husband and wife, cotherapists, or patient and therapist.
[8]
Dyad in Sociology | Definition, Characteristics & Examples - Lesson
The dyad definition is the close relationship of two people over a long period with many interactions in different settings. The most basic requirement for dyad ...
[9]
Dyadic Disruption Theory - PMC - NIH
Dyadic coping is thought to be determined by the degree to which individuals must rely on themselves or their relationship partner to affect outcomes (i.e., ...
[10]
DYADIC definition in American English - Collins Dictionary
1. of or consisting of a dyad; being a group of two 2. pertaining to the number 2 noun 3. Math two or more dyads added together.
[11]
Dyadic vs Binary - What's the difference? | WikiDiff
As adjectives the difference between dyadic and binary is that dyadic is pertaining to the number two; of two parts or elements while binary is...<|control11|><|separator|>
[12]
Dyadic - Definition, meaning and examples | WordUp App
Dyadic usually refers to a relationship or interaction between two people or entities, such as a therapist and their patient.
[13]
Dyadic predicate - (Intro to Semantics and Pragmatics) - Fiveable
Definition. A dyadic predicate is a type of predicate that takes two arguments or subjects, often expressed in the form of a relation between them.
[14]
Dyad - Etymology, Origin & Meaning
Dyad, from Greek dyas (two) via Latin, means "the number two" or a pair; origin traces to PIE *dwo-. Used in chemistry, biology, poetics, and math.
[15]
DYAD Definition & Meaning - Merriam-Webster
see dy-. First Known Use. 1675, in the meaning defined at sense 1. Time Traveler. The first known use of dyad was ...
[16]
Dyadica | PHILIUMM - EMAN
Leibniz started working on dyadics in around 1679, as is believed from one of the earliest manuscripts, De Progressione Dyadica, dated 15 March 1679. Even ...Missing: dyad | Show results with:dyad
[17]
Le manuscrit « De Progressione Dyadica » de Leibniz - ResearchGate
The first dated manuscript containing the dyadic is the De Progressione Dyadica of 15 March 1679 (Serra, 2010; Alcantara, 2006, 14;Couturat, 1901, 473-78;C, 574) ...Missing: dyad | Show results with:dyad<|control11|><|separator|>
[18]
dyadic rational number in nLab
Nov 23, 2023 · A dyadic rational number is a rational number r ∈ ℚ r \in \mathbb{Q} such that the binary expansion of r r has finitely many digits. 2.Definition · As a subset of the rational... · Properties · Algebraic closure
[19]
[PDF] Parity and Partition of the Rational Numbers
The usual definition of the dyadic rational numbers [1, p. 122] is. D = z. 2m. : z ∈ Z,m ∈ Z . Note that the integers are included in the set of dyadic ...<|separator|>
[20]
[PDF] Applied Analysis Preliminary Exam 13 January 2012, 10:00 am
Jan 13, 2012 · (i) Prove that the dyadic rationals are dense in R. Solution: Let a, b ∈ R with a < b. We want to show that there is a dyadic rational in ...
[21]
[PDF] MA 34100 Fall 2016, HW 3 - Purdue Math
Sep 21, 2016 · Show that the dyadic rationals (i.e., rational numbers of the form m. 2n for m ∈ Z, n ∈ N) are dense. Proof. what we need to prove is ∀x ...
[22]
[PDF] Dyadic linear programming and extensions - University of Waterloo
Apr 10, 2024 · Dyadic rationals are important for numerical computations because they have an exact representation in floating-point arithmetic on a computer.
[23]
[PDF] Lecture 3 Introduction to vectors and tensors
- Tensor product: Dyad: a second-order tensor formed by the tensor product of two vectors. Tensor algebra. DIY. Prove.<|separator|>
[24]
[PDF] 1.8 Tensors ( ) ( ) ( )
Aug 1, 2010 · 1.8. 4. It can be seen that the dyad is a second order tensor, because it operates linearly on a vector to give another vector {▲Problem 2}.
[25]
[PDF] Vectors and dyadics - Stanford University
Each quantity is identified as a scalar (no associated direction), vector (one associated direction), or dyad/dyadic (two associated directions). Scalar ...
[26]
[PDF] ME338A CONTINUUM MECHANICS
Apr 3, 2008 · 1 Tensor calculus. Fourth order tensors tensor (dyadic) product A ⊗ B of two second order tensors. A and B introduces a fourth order tensor A.
[27]
[PDF] Vector and Tensor Algebra
The tensor product of two vectors represents a dyad, which is a linear vector transformation. A dyad is a special tensor – to be discussed later –, which ...
[28]
[PDF] Fundamentals of Continuum Mechanics
Nov 3, 2011 · The dyadic representation of the tensor that rotates the original ... The stress tensor is the tensor that it is necessary to introduce to.
[29]
[PDF] Chapter_4 - An Introduction to Continuum Mechanics, Second Edition
The terms in the parenthesis can be defined as the stress dyadic or stress tensor T: T ≡ ˆe1 t1 + ˆe2 t2 + ˆe3 t3 = ˆei ti. (2). Show that T is the ...
[30]
[PDF] Contemporary Mathematics Lecture Notes on Dyadic Harmonic ...
These lecture notes cover dyadic harmonic analysis, including topics like the Hilbert transform, BMO, Ap, Haar multipliers, and weighted inequalities.
[31]
[PDF] DISCRETE MARTINGALES AND APPLICATIONS TO ANALYSIS
Since then, and specially in the last ten years, dyadic martingales have shown to be an illuminating tool not only in boundary behaviour (see [BFL00], [Can98], ...
[32]
On an estimate of Calderón-Zygmund operators by dyadic positive ...
Feb 9, 2012 · Abstract page for arXiv paper 1202.1860: On an estimate of Calderón-Zygmund operators by dyadic positive operators.
[33]
Dyadic representation and boundedness of non-homogeneous ...
Dec 15, 2016 · Dyadic representation and boundedness of non-homogeneous Calderón--Zygmund operators with mild kernel regularity. Authors:Ana Grau de la Herrán, ...
[34]
[PDF] Lecture 6 – Orthonormal Wavelet Bases - Chapman University
Nov 10, 2017 · This is historically the first orthonormal wavelet basis, described by A. Haar (1910) as a basis for L2. [0,1]. The Haar basis is an ...
[35]
[PDF] Wavelets
Aug 14, 2012 · appropriate wavelet bases. It is often stated that Haar in 1910 [19] exhibited a wavelet ψ = ψH and it took about 70 years before a large ...
[36]
[PDF] The Sociology of Georg Simmel - Duke People
In the dyad, the sociological process remains, in principle, within personal interdependence and does not result in a struc- ture that grows beyond its elements ...
[37]
Simmel - Duke People
The dyad is where many general social forms exist in their pure state, also the limitation two only two members is the a condition that gives rise to specific ...
[38]
A dyadic analysis of social network stability before and after ...
To examine tie stability from pre- to post imprisonment among incarcerated people focusing on 1) ties with core discussion and criminal network members.
[39]
Exchange and cohesion in dyads and triads: A test of Simmel's ...
To examine Simmel's argument we compare a dyad in which neither actor has an alternative partner with a triad in which people are competing with one another ...
[40]
No couple is an island: A social network perspective on dyadic stability
Perceptions of social approval are better at predicting stability than actual approval. The effects of social networks occur even after controlling for the ...Missing: empirical | Show results with:empirical
[41]
Sociological Analysis of the Dyad - jstor
This paper will attempt to outline a frame of reference for the study of the dyad, to indicate briefly some of the past research, and to suggest areas where ...
[42]
Dyadic Interaction: Greater than the Sum of its Parts? - PMC - NIH
Based on the theory of dyadic expansion, that dyadic interaction can be conceptualized as more than a sum of its parts (Tronick, 2005), we expected that dyadic ...
[43]
Dynamic Dyadic Systems Approach to Interpersonal Communication
Sep 25, 2021 · This article articulates conceptual and methodological strategies for studying the dynamic structure of dyadic interaction revealed by the turn-to-turn ...Abstract · Dynamic dyadic systems... · Directions for future research · Conclusion
[44]
Does similarity trigger cooperation? Dyadic effect of similarity in ...
Jun 6, 2022 · Using a 12-round prisoner's dilemma task, this study explored whether being similar in SVO promotes more dyad- and individual-level cooperation ...
[45]
The Role of Attachment and Dyadic Coping in Shaping Relational ...
People's attachment styles play a fundamental role in shaping their intimate relationships. Anxiously attached individuals have a strong need for closeness ...
[46]
(PDF) Emotional mimicry: a communication accommodation approach
Sep 7, 2022 · This commentary addresses emotional mimicry from a communication accommodation theory (CAT) perspective.
[47]
Gender differences in cognitive and affective interpersonal emotion ...
In couples, males' cognitive engagement (CE) was less effective than affective engagement (AE), while females showed no difference between AE and CE.
[48]
Negotiation Power and the Impact of Gender Differences - MDPI
The theoretical contribution is that females are not per se inferior in negotiations, but their performance decreases in scenarios of power asymmetries. On the ...<|separator|>
[49]
About DDP
DDP, or Dyadic Developmental Psychotherapy, is a family-based therapy for children with trauma, created by Dan Hughes. It helps children learn to trust.Dyadic Developmental · Dyadic Developmental Practice · What is meant by PACE?
[50]
Dyadic Developmental Psychotherapy (DDP): Benefits, Techniques ...
Mar 8, 2018 · Dyadic developmental psychotherapy (DDP) is an attachment-focused therapy developed by Drs. Daniel Hughes and Arthur Becker-Weidman.What is Dyadic Developmental... · Application and Efficacy of DDP
[51]
Attachment-Based Parenting Interventions and Evidence of ... - NIH
Aug 18, 2022 · Results showed that the rate of secure attachment improved from 20% at pre-treatment to 54% at post-treatment, and showed decreases in the ...
[52]
Evidence Based Dyadic Therapies for 0- to 5-Year-Old Children ...
This commentary outlines indications of the four most commonly used evidence-based dyadic psychotherapies for young children.
[53]
The feasibility of a randomised controlled trial of Dyadic ...
Dec 30, 2014 · DDP uses core principles of playfulness, acceptance, curiosity, and empathy (commonly referred to as 'PACE') in order for the parent and child ...
[54]
Dyadic Services as a Medi-Cal Benefit - DHCS - CA.gov
Jun 2, 2025 · Dyadic services are a family and caregiver focused model of care intended to address developmental and behavioral health conditions of children.
[55]
Dyadic Services Benefit | Health Net
Jul 17, 2025 · The Dyadic Services and Family Therapy Benefit can help support child development and mental health by treating children and caregivers together.
[56]
CEBC » Child Parent Psychotherapy › Program › Detailed
Results indicate that at follow-up, children in the CPP group had higher rates of secure and lower rates of disorganized attachment than did children in the PPI ...
[57]
The Effectiveness of Child-Parent Psychotherapy on Traumatized ...
Jun 24, 2024 · Recent reviews and meta-analysis found positive effects for CPP regarding improved attachment security and decreased attachment insecurity and ...