I

Id: see Psychoanalytic Theory.

Identity Diffusion: a model developed by Erik Erikson to understand how people experience uncertainty about their sense of identity. Erikson developed the model in particular relation to adolescence, though clearly elements of it can - and do! -apply to people in later stages of life. Briefly the 4 components of Identity Diffusion are:-

• Fear of Intimacy - commitment to others may involve a loss of one's own identity
• Diffusion of Time - Erikson said this "consists of a decided disbelief in the possibility that time may bring change and yet also a violent fear that it might." The result is usually that the individual can't plan for the future they are anxious about
• Diffusion of Industry - this is characterised by either an inability to concentrate or enormous focussed efforts on a single short-term activity
• Negative Identity - Erikson said this involved "a scornful and snobbish hostility towards the role offered as proper and desirable in
  one's family or immediate community." This can lead to the taking on of an extreme identity such as delinquent or drug abuser

Erikson's components are all typical of the RED vMEME's struggle to assert its independence without thought of consequences for its actions.

Immune System:

Imposed Etic: a term coined by the cross-cultural psychological specialist John Berry to refer to the values, practices, norms and other characteristics of one culture or sub-culture being seen as universal and thus applied to other cultural groups whether appropriate or not.

Independent Variable: see variable.

Inferential Test:

Informational Social Influence:

Inner Child: aka the 'Divine Child' (Carl Gustav Jung), the 'Wonder Child' (Emmet Fox) and the 'Child Within' (Charles Whitfield). Some psychotherapists think of the Inner Child as the 'True Self'.
How the Inner Child develops during childhood will impact on his/her eventual Enneagramme type, the development of the PURPLE and RED vMEMES and the mental health of the Id-Ego-Superego relationship in Psychoanalytic Theory.

Integral Psychology: Ken Wilber's philosophical approach for re-integrating spiritual consciousness into Developmental Psychology. He disdains what he terms the 'Flatland' approach where only "the world of matter and energy, empirically investigated by human senses and their tools, is real." The concept has the All Quadrants/All Levels model as a key element. This facilitates drawing upon ancient, mediaeval and modern psychologists, philosophers and mystics, both Eastern and Western, to create a new paradigm that includes waves of development, lines of development, states of consciousness and the self, following each from subconscious to self-conscious to superconscious.

(Unfortunately, with Integral Spirituality, the successor concept, Wilber has wandered into some constructs that simply don’t stand up to scientific scrutiny. That shouldn’t distract from the importance of his earlier work.)

Integrated SocioPsychology: the I have term coined  for the alignment and 'complimentariness' of the differing fields of Psychology and the related behavioural sciences (Anthropology, Sociology) and 'hard sciences' (Biology, Neuroscience). The core of this approach is the use of the Graves Model - and its Spiral Dynamics build - to underpin Robert Dilts' Neurological Levels, stood on a foundation of Hans J Eysenck's Dimensions of Temperament. Memetics, the formation of meta-states and the effects of Reciprocal Determinism are also key areas of study in this paradigm.

Intelligence Quotient (IQ):

Internal Representation: