Child Development and Research Methods

Vocabulary practice flashcards covering research methodology, enduring themes, genetics, prenatal development, physical and motor growth, attachment, parenting styles, emotional and moral development, and classic cognitive theories from Piaget and Vygotsky.

Direct Relevance

A criterion for good measurement requiring that the measure must be directly relevant to the hypothesis being tested.

Interrater Reliability

The degree to which different observers who witness the same behavior agree on how to interpret and code it.

Test-Retest Reliability

The consistency with which a measurement produces the same result on two or more separate testing occasions.

Internal Validity

The degree to which observed effects are attributable to the conditions manipulated by the experimenter rather than confounding factors, ensuring the study measures what it intends to measure.

External Validity

The extent to which research findings can be generalized beyond the particulars of the study to different children, settings, and stimuli.

Naturalistic Observation

A data-gathering approach in which children's activities and behaviors are observed within one or more everyday, real-world settings.

Structured Observation

A method of gathering data wherein children are brought to a laboratory setting and presented with prearranged, standardized tasks.

Direction of Causality Problem

A correlation issue where it is impossible to determine from a correlation alone which variable is the cause and which is the effect.

Third Variable Problem

The possibility that a correlation between two variables is caused by both variables being influenced by an unmeasured third variable.

Continuous Development

Development characterized by smooth, gradual, small quantitative increments where early changes progressively build on one another.

Discontinuous Development

Development characterized by abrupt, qualitative changes organized into distinct stages, separated by periods of stability.

Evocative Effects

A mechanism of the active child wherein an individual's genetically influenced traits elicit specific behaviors, reactions, and treatment from people in their environment.

Niche-Picking

The process by which children actively select and attend to specific environments, activities, and niches that align with their genetically influenced traits and preferences.

Polygenetic

Referring to traits and behaviors that involve more than two genes, resulting in a wider range of individual variability.

Behavioral Genetics

A field that attempts to measure the heritability of traits by examining whether individuals who share more genetic material are more similar than those who share less.

Heritability Estimates

A statistical measure of how much of the differences between individuals within a population are attributable to heredity.

Norm of Reaction

The range of all possible phenotypes that a single genotype can express depending on the specific environment in which it develops.

Epigenetics

The process through which environmental experiences add biochemical markers to genes that alter their expression without changing the underlying DNA sequence.

Cognitive Miser

The human tendency to make decisions using mental shortcuts that require the least amount of cognitive effort.

Cognitive Bias

The tendency to search for, interpret, and place greater weight on information that confirms preexisting beliefs.

Split-Mind Strategy

A critical thinking approach where one deliberately uses half of their mind to agree with a claim and the other half to disagree with it.

Germinal Period

The initial prenatal developmental stage lasting from 0 to 2 weeks, characterized by rapid cell divisions and implantation of the blastocyst.

Embryonic Period

The prenatal stage from 3 to 8 weeks, characterized by the formation of major bodily structures and organs; this represents the most sensitive period of development.

Fetal Period

The final prenatal period lasting from 9 to 38 weeks, characterized by rapid physical growth, bodily maturation, and structural refinement.

Teratogens

Environmental agents, drugs, or hazards that increase the incidence of developmental deviations or structural malformations in a developing organism.

Multiple Risk Model

A framework stating that the likelihood of a negative developmental outcome increases as the total number of risk factors increases.

Habituation-Dishabituation Method

A research technique where an infant is repeatedly presented with a stimulus until interest declines, followed by a new stimulus to determine if the infant can discriminate between the two based on renewed attention.

Intermodal Perception

The ability to combine and integrate sensory information received from two or more sensory modalities simultaneously.

Experience-Expectant Brain Development

The process through which standard neural wiring occurs as a result of universal experiences common to all members of a species within a normal environment.

Perceptual Narrowing

A developmental process wherein young infants begin with broad perceptual abilities and gradually lose the capacity to detect differences in stimuli to which they are not routinely exposed.

Cephalocaudal Principle

The principle of physical growth and motor development stating that structures and control develop from the head downward to the lower body.

Proximodistal Principle

The developmental principle stating that growth and motor coordination proceed from the center or inner axis of the body outward to the peripheral extremities.

Microsystem

In Bronfenbrenner's bioecological theory, the immediate environment with which a child has direct, face-to-face interactions (e.g., family, school, peers).

Mesosystem

In Bronfenbrenner's bioecological theory, the interconnections and relationships between different microsystem contexts that indirectly affect the child.

Exosystem

In Bronfenbrenner's bioecological theory, external settings and social structures that the child does not directly inhabit but that still influence their development indirectly.

Macrosystem

In Bronfenbrenner's bioecological theory, the broad cultural values, laws, socioeconomic systems, and societal customs within which all other systems are embedded.

Chronosystem

In Bronfenbrenner's bioecological theory, the temporal dimension encompassing historical changes and developmental transitions that impact the other ecological systems.

Secure Attachment

An attachment classification characterized by low anxiety and low avoidance, where the child uses the caregiver as a secure base for exploration and is readily comforted upon reunion.

Insecure-Ambivalent Attachment

An attachment classification characterized by high anxiety and low avoidance, where the infant is clingy, fails to explore, displays severe distress upon separation, and exhibits anger or difficulty calming upon reunion.

Insecure-Avoidant Attachment

An attachment classification characterized by low anxiety and high avoidance, where the child explores freely, shows minimal distress upon separation, and ignores or avoids the caregiver upon return.

Disorganized Attachment

An attachment classification characterized by high anxiety and high avoidance, in which the child displays contradictory, confused, or disoriented behaviors in the presence of the caregiver.

Sensitivity of Responsiveness

A caregiver's ability to consistently notice infant signals, interpret them accurately, and respond promptly and appropriately to meet the infant's needs.

Authoritative Parenting

A parenting style characterized by high warmth, high acceptance, open communication, and the establishment and consistent enforcement of clear rules and standards.

Authoritarian Parenting

A parenting style characterized by high control and low warmth, enforcing strict compliance through threats, punishment, and low emotional responsiveness.

Goodness of Fit

The degree of compatibility between a child's inherent temperament and the demands, expectations, and qualities of their physical and social environment.

Temperament

Inborn, individual differences in emotional, motor, and attentional reactivity and self-regulation that are observable shortly after birth.

Social Referencing

The behavioral tendency of infants (emerging around 11 months) to look at another person's facial expressions and vocal tone to judge an unfamiliar or ambiguous situation.

Display Rules

Cultural and social norms acquired between ages 6 and 10 that dictate how, when, and where emotions should be appropriately expressed or suppressed.

Instrumental Aggression

Aggressive behavior motivated by a desire to obtain a concrete, specific goal or object, such as taking a toy from another child.

Relational Aggression

A form of non-physical aggression intended to harm another individual by damaging their social relationships, friendships, or peer status.

Object Permanence

The cognitive realization that objects and individuals continue to exist even when they are no longer visible or directly perceivable.

A-not-B Error

A classic cognitive error where infants between 8 and 12 months search for a hidden object at its initial location (A) even after witnessing it moved to a new hiding spot (B).

Centration

The preoperational cognitive limitation of focusing on a single salient feature of an object or event while completely excluding other relevant dimensions.

Conservation Concept

The understanding that quantitative properties of an object or substance (such as volume, mass, or number) remain unchanged despite alterations in outward appearance or physical arrangement.

Assimilation

The Piagetian process of integrating new experiences, objects, or information into existing cognitive schemas.

Accommodation

The Piagetian process of modifying existing schemas or creating new ones in response to novel experiences and environmental information.

Zone of Proximal Development (ZPD)

The distance between what a child can achieve independently and what they can achieve with optimal guidance and collaboration from a more capable partner.

Intersubjectivity

In Vygotsky's theory, the shared, mutual understanding that people establish through communication and interaction.

Social Scaffolding

A supportive process where a more competent individual provides a temporary structural framework that enables a child to solve problems at a higher level than they could alone, gradually withdrawing support as competence increases.

Preferential Looking Technique

An infant assessment method that presents two stimuli simultaneously to evaluate whether infants gaze longer at one over the other, demonstrating stimulus discrimination.

Passive Gene-Environment Correlation

A developmental pattern where biological parents pass along their genetic material while also shaping the home environment to reflect those same inherited predispositions.

Ulnar Grasp

An early motor behavior where a young infant closes all fingers against the palm in a clumsy, whole-hand grasping motion.

Pincer Grasp

A fine motor skill emerging around 12 months in which an infant grips small objects using the thumb and index finger in opposition.

Positive Reinforcement

An operant conditioning procedure where presenting an appealing or rewarding stimulus immediately following an action increases the likelihood of that behavior recurring.

Negative Reinforcement

An operant conditioning procedure where removing or avoiding an aversive stimulus following an action strengthens the frequency of that behavior.

Positive Punishment

An operant conditioning procedure where administering an unpleasant stimulus immediately following an action decreases the likelihood of that behavior.

Negative Punishment

An operant conditioning procedure where removing a desired stimulus or privilege following an action decreases the future frequency of that behavior.

Permissive Parenting

A child-rearing style marked by high warmth and acceptance combined with very low control, placing few boundaries or behavioural demands on the child.

Uninvolved Parenting

A child-rearing style characterized by low warmth and low control, where caregivers remain emotionally detached and unresponsive to their child's needs.

Easy Temperament

A behavioral profile found in roughly 40% of infants, characterized by regular biological rhythms, an open disposition toward novelty, and a generally cheerful mood.

Difficult Temperament

A behavioral profile found in roughly 10% of infants, marked by irregular bodily routines, slow adaptation to novelty, and intense, negative emotional reactions.

Slow-to-Warm-Up Temperament

A behavioral profile found in roughly 15% of infants, characterized by low physical activity, mild or hesitant responses to new settings, and gradual adjustment over time.

Identity-Diffusion Status

An identity status in which an individual has made no firm vocational or ideological commitments and is not actively exploring alternative choices.

Foreclosure Status

An identity status where an individual prematurely commits to values and career paths chosen by parents or authority figures without independent exploration.

Moratorium Status

An identity status characterized by the active exploration of diverse vocational, ideological, and personal identities without yet reaching a firm commitment.

Identity-Achievement Status

An identity status achieved when an individual consolidates a coherent, autonomous commitment to personal goals and values after an active period of exploration.

Delay of Gratification

The ability to inhibit impulses and resist an immediate smaller reward in pursuit of a more valuable long-term outcome.

Preconventional Moral Reasoning

The earliest stage in Kohlberg's theory where ethical choices are driven by self-interest, instrumental benefits, and the avoidance of punishment.

Conventional Moral Reasoning

The intermediate stage in Kohlberg's theory where ethical judgments are centered on maintaining social approval, fulfilling interpersonal duty, and obeying established laws.

Postconventional Moral Reasoning

The highest stage in Kohlberg's theory where ethical reasoning relies on self-chosen moral principles, fundamental rights, and the greater good rather than blind conformity.

Hostile Attributional Bias

The tendency of aggressive individuals to interpret ambiguous or accidental behaviors by peers as deliberately malevolent and antagonistic.

Sensorimotor Stage

Piaget's first cognitive period (ages 0 to 2), during which infants construct knowledge entirely through direct sensory perceptions and motor activities.

Preoperational Stage

Piaget's second cognitive period (ages 2 to 7), marked by symbolic representation and language emergence, alongside limitations such as egocentrism and centration.

Concrete Operational Stage

Piaget's third cognitive period (ages 7 to 11), during which children develop the ability to reason logically about physical objects and master conservation problems.

Formal Operational Stage

Piaget's final cognitive period (ages 12 and up), characterized by abstract thinking, hypothetical-deductive reasoning, and systematic hypothesis testing.

Equilibration

The regulatory mechanism through which children balance assimilation and accommodation to resolve cognitive conflict and reach a higher developmental organization.

Egocentrism

A cognitive limitation during early childhood characterized by evaluating the world solely from one's own perspective and assuming others share the exact same view.

Deferred Imitation

The replication of an observed action after a significant temporal delay, demonstrating the existence of enduring internal mental representations.

Private Speech

Audible self-talk that young children use to regulate their own actions, solve problems, and direct attention before it becomes silent internal thought.

Joint Attention

The shared focus of two individuals on the same external object or event, established through gaze following or pointing.

Guided Participation

A collaborative social process where an experienced mentor directs and scaffolds a child's active involvement in culturally meaningful activities.