Free explainer4 min read
Attachment styles
Understand the model, recognise it in a stem, separate the look-alikes, then apply it.
Start with the mental model
Attachment style matters because it predicts how a person seeks comfort and handles closeness for life, not just in infancy. Ainsworth's Strange Situation is a structured observation that classifies how an infant behaves toward a caregiver during separation and reunion, revealing that underlying style. A toddler who cries at separation but calms and reconnects on reunion shows the classic secure pattern. Watching the reunion, not just the separation, is what actually distinguishes the styles from each other.
Visual explanationUse the diagram to rebuild the concept from memory.
01Core model
Secure attachment (Type B) shows distress on separation, comfort on reunion, and uses the caregiver as a secure base for exploring the room. Insecure-avoidant attachment (Type A) shows little distress and ignores or avoids the caregiver on reunion, treating them similarly to a stranger. Insecure-resistant, or ambivalent, attachment (Type C) shows high distress but stays clingy and hard to settle even once the caregiver returns. Disorganised attachment (Type D, described by Main and Solomon) shows contradictory, confused or freezing behaviour, and is linked to maltreatment. An infant who runs to the caregiver on reunion but then arches away and resists being held (e.g., that mixed approach-and-resist pattern) fits the ambivalent, Type C style. The reunion behaviour, not separation distress alone, is what separates avoidant, ambivalent and disorganised attachment from each other.
02Recognise it in an SBA
• In the Strange Situation, an 18-month-old shows little distress when his mother leaves, ignores her and continues playing, and actively avoids or turns away from her when she returns,…
03Separate the look-alikes
| Secure | explores freely and is comforted on reunion, unlike insecure-avoidant infants who ignore the caregiver. |
|---|---|
| Insecure-avoidant | little separation distress and avoids reunion, whereas insecure-ambivalent/resistant infants are highly distressed and hard to soothe. |
| Insecure-ambivalent/resistant | clingy yet resists comfort on reunion, rather than the indifference of the avoidant pattern. |
| Disorganised | contradictory, fearful approach-avoidance with no coherent strategy, unlike the organised secure and insecure styles. |
How the exam thinksRead the question the way the examiner wrote it.
What people get wrong here
• Insecure–resistant infants are highly distressed by separation and are simultaneously clingy and resistant (hard to settle) on reunion, not avoidant.
• 'Earned secure' is an adult attachment concept from the Adult Attachment Interview, not a Strange Situation infant classification.
• Secure infants seek proximity on reunion and are readily comforted, using the caregiver as a secure base, the opposite of this avoidance.
• Disorganised attachment shows contradictory, confused or apprehensive behaviours (e.g. freezing, approach–avoidance) without a coherent strategy.
Deep diveStart from scratch, the full, beginner-friendly explanation.
**Classify attachment by the reunion behaviour specifically: comforted and exploring (secure), avoidant and indifferent (Type A), clingy yet resistant (Type C), or contradictory and freezing (disorganised)**. This framework builds on Bowlby's broader attachment theory, in which early caregiving shapes an internal working model the child carries forward.
An infant who shows almost no distress at separation and barely acknowledges the caregiver's return demonstrates the avoidant style, not simply a calm temperament. That pattern of minimal engagement throughout the whole episode is the giveaway, since a genuinely relaxed infant would still greet a returning caregiver warmly.
Clinically, attachment style is inferred from this specific behavioural pattern, not from how upset or calm the infant generally seems. Disorganised attachment carries the most concern, since Main and Solomon linked it to maltreatment and to a higher later risk of psychopathology, making it the pattern most likely to prompt further assessment.
01Ainsworth's Strange Situation classifies
Ainsworth's Strange Situation classifies infant attachment by separation/reunion behaviour.
02Secure (Type B) distressed
Secure (Type B): distressed on separation, comforted on reunion, uses caregiver as a secure base.
03Insecure–avoidant (Type A) little
Insecure–avoidant (Type A): little distress, ignores/avoids caregiver on reunion, treats stranger similarly.
04Insecure–resistant/ambivalent (Type C) highly
Insecure–resistant/ambivalent (Type C): highly distressed, clingy yet resistant and hard to settle.
05Disorganised (Type D Main
Disorganised (Type D, Main & Solomon): contradictory, confused, freezing behaviours, linked to maltreatment.
06Builds on Bowlby's attachment
Builds on Bowlby's attachment theory.
Worked application
Worked application: In the Strange Situation, an 18-month-old shows little distress when his mother leaves, ignores her and continues playing, and actively avoids or turns away from her when she returns,… The best answer is “Insecure–avoidant” because insecure–avoidant infants show minimal separation distress, avoid or ignore the caregiver on reunion, and treat stranger and caregiver similarly.
The story in picturesPredict each next frame before you reveal it.
04Question-solving strategy
• Name the learning, social or research principle being tested before reading the options.
• Identify the antecedent, behaviour, consequence or cognitive process in the vignette.
• Compare the direction of effect with the nearest competing principle.
• Apply the same rule to a new example to confirm that the answer transfers.
05Memory anchor
Four kids run back to the school gate when the fire drill ends.
1. The gate-runner sprints straight to the returning parent, gets a hug, and goes back to playing -> secure: distressed on separation, comforted and returns to exploring on reunion.
2. One child doesn't even look up from the sandbox when the parent arrives -> insecure-avoidant: little distress, ignores or avoids the caregiver on reunion.
3. Another clings to the parent's leg screaming, then shoves the parent's hand away when picked up -> insecure-resistant/ambivalent: high distress, clingy yet resists comfort on reunion.
4. A third freezes halfway across the yard, walking backwards toward the parent while looking the other way -> disorganised: contradictory, confused, freezing behaviour with no coherent strategy on reunion.