Type Comparison: LSI (ISTj) and SEI (ISFp)

Socionics Characteristics

Observable Differences in Behavior

  1. LSI tend to plan ahead, making decisions early. On the other hand, SEI tend to prefer a wait and see, more spontaneous approach.
  2. SEI are relatively more flexible and tolerant than LSI.
  3. LSI are relatively more rigid and stubborn than SEI.
  4. SEI are comfortable making changes and adjustments to their decisions quite frequently. LSI, on the other hand, prefer to not make changes to their decisions.
  5. LSI tend to put more effort than SEI into finishing any new project they start.
  6. SEI tend to start more tasks and other projects than LSI, but the SEI are less likely to complete all of them.
  7. LSI tend to have stiffer more angular movements. SEI tend to have more relaxed fluid movements.
  8. SEI tend to have a more democratic leadership style than LSI.
  9. LSI tend to have a more authoritarian, hierarchical leadership style than SEI.
  10. SEI have a relatively higher stress tolerance than LSI. LSI often struggle with continually changing situations more than SEI do.
  11. LSI are more likely to make decisions based on logical reasons than SEI, who are more likely to make decisions based on their own feelings.
  12. SEI are often better at solving and minimizing interpersonal problems, where as LSI often struggle understanding them.
  13. LSI are often more interested in studying systems, structures, and functionality than SEI.
  14. SEI tend to prefer using persuasion as a means of convincing others to do something, where as LSI prefer to use argumentation as a means of convincing others.
  15. SEI are more vulnerable to logical manipulation than LSI. However LSI in contrast, are often more vulnerable to emotional or ethical manipulations than SEI.
  16. LSI place greater value on their interests than SEI. For example, LSI will maintain high levels of energy and focus on an interest they value, even deprioritizing their other resources to maintain the interest. For example, LSI may spend a large amount of energy on an interest they value, often to the detriment of their time, sleep, relationships, money, etc.
  17. SEI place greater value on their resources than LSI. For SEI, resources like their money, time, sleep, etc., fall into their "inner personal space," and the SEI will be more likely to deprioritize an interest if it starts to drain these resources too much.
  18. LSI tend to perceive events in an episodic manner, i.e., they see events evolve in discrete states rather than continuous changes. On the other hand, SEI tend to perceive events in a continuous sequence; i.e., they see events evolving fluidly rather that one state to the next.
  19. When describing the stages of an event, SEI are more likely to focus on how stage A leads to stage B, how stage B leads to stage C, etc. LSI, on the other hand, focus more on the stages themselves without necessarily seeing or emphasizing the transitions or causes and effects of the stages to the extent that SEI do.
  20. When describing reality, LSI are more likely to talk about the properties and structure of reality. SEI are more likely to describe reality as movements, interactions, and changes.
  21. LSI are rmore relaxed in their natural state than SEI. However LSI will mobilize and concentrate when needed to accomplish an objective. After the task has been completed, LSI demobilize again. This state of demobilization is the natural state of LSI.
  22. When contemplating a task, it takes LSI longer time to mobilize than SEI; i.e., LSI prefer to spend some time in a more natural state of relaxedness which will then prepare them to subsequently mobilize and concentrate at the crucial moments, improving their performance.
  23. When working on a project, LSI are more likely than SEI to break up larger tasks into several stages. Then LSI mobilize to carry out each stage (and demobilize between the stages).
  24. When getting ready to start a project, LSI spend more time planning and preparing for the project than SEI. In particular, LSI spend more time discussing the plan, discussing options and ways to approach the project, etc.)
  25. When describing their reasoning for their actions, LSI (more so than SEI) tend describe how and why they came to a certain decision, and focus less on the timing and initiation of the action.
  26. When it comes to completing a task, SEI are more likely than LSI to mobilize for longer periods of time. Specifically, SEI tend to mobilize for an action early and stay mobilized for a longer period of time after the task has been completed. For SEI, this state of readiness is their natural state.
  27. SEI are more likely than LSI to tackle a task in its entirety, rather than breaking it up into smaller separate stages.
  28. When doing a task, SEI are inclined to work for the sake of the result (for example, a reward or bonus for completing the task). In contrast to LSI, SEI can renounce their comforts and conveniences for this; SEI evaluate their place of work by looking at what returns they get for the effort they invested (e.g., monetary, prestige, etc.).
  29. When describing why they undertook a project, SEI are more likely than LSI to focus on the moment when a decision is made and to speak in detail about the stages of its implementation.
  30. When discussing work, SEI are more likely than LSI to focus on the fruits of their labor, about what their effort will yield. LSI on the other hand are more likely to focus on the environment they work in, e.g., their work conditions, conveniences, commute time, etc.
  31. LSI are more likely than SEI to perceive and distinguish themselves primarily through personal qualities. LSI focus on individualism more than SEI.
  32. LSI attitude towards a specific person (more so than SEI) is based on their personal characteristics (authority, intellect, personal achievements, etc.) LSI recognize superiority of certain individuals drawing from their personal qualities
  33. SEI, more than LSI, frequently perceives and defines themselves and other people through group associations. SEI focus on collectivism over individualism.
  34. When SEI form opinions of others, these opinions are formed under the influence of their attitude towards the group to which the person belongs. To SEI, it is incomprehensible how it is possible to belong to two opposing groups at the same time:, i.e., "you're either with us, or with them and against us."
  35. SEI are often able to form quicker opinions of others they have just met than LSI. This is based on the ability of SEI to draw conclusions about the person based on the groups the person belongs to; LSI are more reluctant to make these inferences.
  36. When planning to complete something, LSI are more likely to focus their attention on the goal itself, overlooking and deprioritizing the individual actions needed to reach that goal. On the other hand, SEI tend to focus their attention on the each action; i.e., they're focused on how each decision and choice is being made (towards reaching the goal), in a step by step process.
  37. SEI are able to change and make adjustments to their goals more easily than LSI (depending on how progress is being made, etc.). LSI on the other hand, prefer to stick with their original goals.
  38. LSI tend to judge their available options by how likely the option will help them reach their goal. If a choice no longer helps LSI reach their goals, it will be dismissed and discontinued. On the other hand, SEI prefer to continue pursuing their current option, opting to adjust their ultimate goal in order to fit the current choice.
  39. LSI pay more particular attention to aspects of a situation or plan that are insufficient or lacking. This can be interpreted by others as LSI having a negative assessment of various situations and events (.e.g, "the glass is half empty). On the other hand, SEI pay more attention to what is actually present in a situation, and this can be interpreted as an affirmative or positive manifestation of the surrounding world, situations, possibilities, and prospects (e.g. "the glass is half full").
  40. When assessing an option or available choice, SEI tend to focus more on how the choice could benefit them (what it would potentially yield) than LSI would. On the other hand, LSI would be more cognizant of the potential risks and potential losses that may accompany the decision that SEI may unconsciously minimize.

Compare/Contrast Sociotypes