What Are 4 Core Leadership Theories

Patient Tools

Read, save, and share this guide

Use these quick tools to make this medical article easier to read, print, save, or share with a family member.

Patient Mode

Understand this article easily

Switch between simple English and easy Bangla patient notes. This is for education and does not replace a doctor consultation.

Imagine an orchestra that has all the best musicians in the world except a conductor. Though every member can play perfectly on their own, if they come together, they will only produce an incompatible melody; an orchestra can only create harmonious music when it is...

For severe symptoms, danger signs, pregnancy, child illness, or sudden worsening, seek urgent medical care.

বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

Imagine an orchestra that has all the best musicians in the world except a conductor. Though every member can play perfectly on their own, if they come together, they will only produce an incompatible melody; an orchestra can only create harmonious music when it is led by a conductor. The same situation is applied to every community. If a company does not run with a...

Key Takeaways

  • This article explains Level 5 leadership from Harvard Business Review in simple medical language.
  • This article explains Core Leadership Theories in simple medical language.
  • This article explains A Great Leader Should Know How To Motivate The Team As Well in simple medical language.
Educational health guideWritten for patient understanding and clinical awareness.
Reviewed content workflowUse writer and reviewer profiles for stronger trust.
Emergency safety firstUrgent warning signs are highlighted below.

Seek urgent medical care if you notice

These warning signs are general safety guidance. Local emergency numbers and clinical judgment should always come first.

  • Severe symptoms, breathing difficulty, fainting, confusion, or rapidly worsening illness.
  • New weakness, severe pain, high fever, or symptoms after a serious injury.
  • Any symptom that feels urgent, unusual, or unsafe for the patient.
1

Emergency now

Use emergency care for severe, sudden, rapidly worsening, or life-threatening symptoms.

2

See a doctor

Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

3

Learn safely

Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

Before reading

RX Patient Tools

Use these quick guides before reading the article, or return to them when you need help preparing questions for a doctor.

Start here Choose the right pathway for symptoms, reports, medicines, or urgent warning signs. Disease article roadmap Read this topic step by step: meaning, symptoms, warning signs, diagnosis, treatment, prevention, and follow-up. Treatment planner Prepare questions about treatment choices, benefits, risks, side effects, and follow-up. Family & caregiver guide Organize symptoms, reports, medicines, questions, and follow-up safely. Nutrition & diet guide Prepare food, hydration, supplement, and medicine-timing questions safely. Prevention guide Organize risk factors, protective habits, screening, and warning signs. Recovery guide Prepare a safe plan for activity, rehabilitation, warning signs, and follow-up.
Definition

Imagine an orchestra that has all the best musicians in the world except a conductor. Though every member can play perfectly on their own, if they come together, they will only produce an incompatible melody; an orchestra can only create harmonious music when it is led by a conductor.

The same situation is applied to every community. If a company does not run with a leader, chaos happens: no deadline is set to urge the members, different people shout in different voices, and the company is blinded without a clear goal.

All of these reveal a pure fact: a leader is essential for a team to run smoothly and effectively. A leader is important, as he or she will help the community to oversee the situation and make the best decision. Only by this, the resources of a team can be allocated efficiently.

If you are currently in the position of leading a team, you should give some credit to yourself, as you play an important role. And to nail this role, you may want to study some theories about leadership, and lead your teammates to perform at their best.

To start with, you may want to know which level of leadership you are currently at.

Level 5 leadership from Harvard Business Review

The concept of Level 5 leadership was first introduced by a business consultant, Jim Collins. His concept was later published in a Harvard Business Review article.

The concept of Level 5 leadership began with a study conducted in 1996. In the study, Collins studied 1,435 successful companies, and he distinguished 11 truly great ones from others. Collins discovered that these 11 companies were great as they were led by what he called “level 5” leaders.

The level 5 leaders, according to Collins, possess humility and compassion for the company.

Now, you may have a look at this hierarchy of leadership:

Level 1: Highly Capable Individual

At this level, you possess the knowledge and skill that enable you to excel in your work.

Level 2: Contributing Team Member

At level 2, you contribute your knowledge and skill to the success of the company. In other words, you work productively with other people in your company.

Level 3: Competent Manager

At this stage, you can organize your team effectively to achieve goals.

Level 4: Effective Leader

Here you can stimulate a department to meet performance objectives and achieve a vision.

Level 5: Great Leader

At the top level, you possess all the qualities of the previous levels, plus you harbor a unique blend of humility and will for true greatness.

It is always a good idea for you to constantly reflect on your leadership.

If you desire to climb up the ladder and reach a higher level of leadership, you may find it helpful to study some core leadership theories.

In the following part, we would like to introduce you to four basic, yet essential, leadership theories.

Core Leadership Theories

Trait Theories: What are the traits that make a great leader?

As suggested by the name, the Trait Leadership Theory offers us a tool to distinguish the traits that are commonly possessed by great leaders.

Dr. Gordon Allport, a psychologist, is one of the most famous promoters of the theory.

In a nutshell, the Trait Leadership Theory is founded on the belief that all great leaders possess intrinsic traits that make them great leaders; in other words, a leader is born, not made.

With this belief, the Trait Leadership Theory focuses on analyzing the mental, physical and social traits of great leaders to understand the combination of traits shared among great leaders.

Some of these traits include [1]:

  • Adaptable to situations
  • Cooperative
  • Decisive
  • Self-confident
  • Tolerate of stress

From here, we can see the Trait Leadership Theory tells us not only intelligence or skills account for a great leader, but personal traits are also important indicators.

This theory can help your leadership, as by understanding the traits of a great leader, you will be able to spot out any potential leader in your team. They are competent candidates who are worthy of your cultivation; they are also capable of a higher workload. In this light, this theory helps you allocate your man resource more efficiently.

However, the Trait Leadership Theory has its shortfalls. One should be reminded that the theory was developed in the 1930s. During that period, any practice of personality measurement was still immature. In other words, one may argue that the studies of the traits are not accurate. Besides, in Gordon Allport’s study, the samples of the study were average managers, not “great leaders”. For that, one may argue the traits are not representative enough.

Despite these shortfalls, the value of the Trait Leadership Theory lies in the fact that it is one of the first theories that combine leadership study and psychology; it also founded later theories of leadership, with Behavioral Theory being one of them, which we are going to talk about in the next section.

Behavioral Theory: What does a great leader do?

Different from the Trait Leadership Theory, the Behavioral Theory describes leaders in terms of their behaviors, instead of their physical or mental traits.

The Behavioral Theory believes that great leadership is a result of effective role behaviors. In this light, we can say that by learning effective behaviors, everyone can be a great leader: a great leader is made, not born.

In the 1930s, one of the scholars in this domain of study, Kurt Lewin, divided the leader’s behaviors into three types. They are:

Autocratic Leader

Autocratic leaders make decisions without consulting their teammates. Their behaviors are considered appropriate when it requires quick decision-making, and when there is no need for team agreement for a successful outcome.

Democratic Leader

Contrary to autocratic leaders, democratic leaders allow input from their teammates. This style of leadership is especially important when team agreement is significant. However, it should be noted that it is difficult to manage if there are too many different perspectives and ideas offered by teammates.

Laissez-faire Leader

Laissez-faire leaders allow their teammates to make many decisions. This style of leadership is considered appropriate when the team is capable, motivated, and able to run without close supervision. However, sometimes, Laissez-faire leaders may be considered languid by their teammates.

As a matter of fact, in the field of Behavioral Theory, many studies were done to find which style is the best for leading a community. For example, in 1999, Naylor conducted a systematic comparison between autocratic and democratic leading behaviors.

The implication of the Behavioral Theory to you as a leader is that you can learn the behaviors of great leaders, and try to apply them in your work field.

However, while the Behavioral Theory analyses the great leaders’ behaviors, which is an aspect not covered by the Trait Leadership Theory, it still misses analyzing an important element: the context in which the leaders exist.

The next theory we are going to introduce covers the aspect that the Behavioral Theory has not yet covered.

Contingency Theory: What is the type of leadership this context requires?

The Contingency Theory studies which style of leadership is best suited for a particular working context.

This theory believes there is no single leadership that is appropriate in all situations. That is to say, success is dependent on several variables, including the leadership style, the qualities of the teammates, and situational features (Charry, 2012). Using the words of Lamb (2013), the Contingency Theory states that effective leadership depends on a balance between the leader’s styles and that demanded by the situation.

To get a sense of what the Contingency Theory is about, we may look at two of the models proposed by scholars in this field.

Fiedler Model

The Fiedler Model was proposed in the 1960s by Fred Fiedler, a scientist studying leadership. The Fiedler Model states that effective leadership is dependent on two factors: the leader’s leadership style, and the power of control given to the leader by the situation. The model introduces three steps to determine these two factors:

  • Identifying the leadership style
  • Defining the situation
  • Matching the leader and the situation

Cognitive Resource Theory

The Cognitive Resource Theory was proposed by Fred Fredier and Joe Garcia in 1987. It is a refinement of the Fiedler Model. The Cognitive Resource Theory believes that stress unfavorably affects one’s leadership. The leader’s intelligence and experience are two elements that overcome the negative effect of stress. The theory tells us that in a low-stress situation, the leader’s intelligence is more effective to overcome stress; meanwhile, in a high-stress situation, the leader’s experience is more effective to overcome stress.

Power-and-Influence Theory: How should a leader make the best use of power and influence?

The final theory we would like to introduce to you is the Power-and-Influence Theory. This theory takes a different approach from the above three theories. This theory focuses on analyzing how a leader can encourage his or her teammates to work by using his or her power and influence.

To let you understand more about the theories that fall under the Power-and-Influence Theory, we would like to introduce two models.

French and Raven’s Five Forms of Power

This model was proposed by French and Raven in 1959. It introduces five forms of power that account for the influence of a leader. These five forms of power include:

  • Legitimate: the formal right to make a command
  • Reward: the ability to compensate others
  • Coercive: the ability to punish others
  • Referent: the personal attractiveness
  • Expert: the knowledge and skills in the field

This model implies that if you hope to increase your power and influence over your teammates, you are encouraged to improve one of the above domains. According to French and Raven, it is better to invest the leader’s power in Referent and Expert. Out of the two domains, it is better to invest one’s power in an Expert, as it is about the knowledge and skill in the job field, which is the most legitimate source of power.

Transactional Theory

This model is founded on the assumption that all people seek pleasurable experiences, and avoid un-pleasurable experiences. As a result, people are inclined to align themselves with those who can add to their values.

This model thus aims to teach you how to work on human tendtendenciesrm a mutually beneficial relationship with your teammates, and encourage them to fulfill your command.

A Great Leader Should Know How To Motivate The Team As Well

After reading some core theories in the study of leadership, now we would like to demonstrate to you how to apply a leadership theory, and use it to motivate your teammates.

Two-Factor Theory

Two-Factor Theory was proposed by Frederick Herzberg in the 1950s. It aims to analyze the causes of workers’ motivation and satisfaction in work.

In his study, Herzberg analyzed 200 accountants and engineers who were asked about their positive and negative feelings about their work. Herzberg concluded that there are two factors governing workers’ sense of motivation and satisfaction in work.

The first factor is the Motivator Factor. These are the factors that increase workers’ satisfaction and motivation. Examples of these include the enjoyment of work and career progression.

The second factor is Hygiene Factors. These are the factors that could cause dissatisfaction when they are absent. For example, the company’s travel allowance may be one Hygiene Factor, as if it is suspended, workers may feel dissatisfied.

Even though the above two factors seem similar, Herzberg pointed out that they are different in the sense that the absence of Motivator Factors does not necessarily cause dissatisfaction, while the absence of Hygiene Factors causes dissatisfaction.

Application to your workplace

The Two-Factor Theory tells us that there are methods to improve employees’ motivation for work. And the way to do so is to improve the Motivator Factors and secure the Hygiene Factors.

In this light, you should first have a clear picture of the situation of your community, such as the policies, the benefits, and the facilities of your company.

Then, to improve your teammates’ motivation, you should try to improve the Motivator Factors. For example, if you recognize the modernist architecture of your office motivates your teammates to work, you can enlarge the area that is built by this architectural style.

In addition to the Motivator Factors, you are also reminded to secure the Hygiene Factors. For example, if you recognize that your teammates will be dissatisfied if the air-conditioning is broken down, then you may want to allocate more resources to the maintenance of your office’s air-conditioners.

Maslow’s Hierarchy of Needs

The Hierarchy of Needs theory was introduced by psychologist Abraham Maslow in his paper “A Theory of Human Motivation” in 1943. The key to the theory is that an individual’s basic needs must be satisfied before the other higher needs are motivated to achieve.

According to Maslow, there are 5 levels of the hierarchy:

The first level is Physiological. It is the lowest level of needs, such as food, water, and shelter. These needs are the most basic needs that a person must need to survive.

The second level is Safety. It included personal and financial security, as well as health and wellbeing. Some common examples are freedom from war, violence, job security, and work safety.

The third level is belongingness. It represents the need for friendship, relationships, and family.

The fourth level is esteem. Esteem means the need for the person to feel confident and be respected by others. Approval of families and friends, recognition, and high status are some examples that belong of esteem.

The fifth level is self-actualization. It is the highest level of all the other needs. It is the desire to achieve as much as you can and become the most you can be. It included achievements in education, religion, personal growth, and advancement.

Maslow proposed that it is pointless to achieve or even be aware of lofty goals like religion and personal growth when you are dying of starvation or facing life threats.

Application to the workplace

Maslow’s Hierarchy of Needs can be applied to the workplace for boosting productivity.

The founder of the Joie de Vivre hotel chain and head of Hospitality at Airbnb, Chip Conley, transformed his business through the use of the theory.

He gathered a group of 8 housekeepers and asked if someone from Mars came down and saw them doing as a housekeeper, what would those people call them? The housekeeper’s turnout came up with “The Serenity Sisters”, “The Clutter Busters” and “The Peace of Mind Police”.

This exercise let the housekeepers understand their importance with the thought that they were creating a shelter for travelers instead of simply cleaning a room. Knowing the value of self, they felt respected and gained motivation to work harder. As a result, efficiency was highly lifted.

There is no denying there are so many advantages to attaining the highest level of the Hierarchy of Needs. Yet, before enjoying the benefits that the achievement of the highest needs brings you, it is important to ensure the lower needs are being satisfied. If the workers are lack shelter, short of time to focus on family and friends, having financial instability, they can hardly realize their value and make the most out of them.

Doctor visit helper

Prepare before seeing a doctor

A simple rural-patient checklist to help you explain symptoms clearly, ask better questions, and avoid unsafe self-treatment.

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Orthopedic doctor, rheumatologist, or physiotherapist depending on cause.

What to tell the doctor

  • Write which joints hurt, swelling, morning stiffness duration, fever, injury, and walking difficulty.
  • Bring X-ray, uric acid, ESR/CRP, rheumatoid factor, or previous reports if available.

Questions to ask

  • Is this injury, osteoarthritis, rheumatoid arthritis, gout, infection, or another cause?
  • Which exercises, supports, or lifestyle changes are safe?
  • Do I need blood tests or X-ray?

Tests to discuss

  • Joint examination and range of motion
  • X-ray when chronic arthritis or injury is suspected
  • ESR/CRP, uric acid, rheumatoid tests when inflammatory arthritis is suspected

Avoid these mistakes

  • Do not ignore hot swollen joint with fever.
  • Avoid repeated steroid injections/tablets without a clear diagnosis and follow-up.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
  • Use comfortable posture and gentle movement as tolerated.
  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: What Are 4 Core Leadership Theories

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

RX Patient Help

Ask a health question safely

Write your symptom story. A health professional or site editor can review it before any answer is prepared. This box is not for emergency care.

Emergency first: Severe chest pain, breathing trouble, unconsciousness, stroke signs, severe injury, heavy bleeding, or rapidly worsening symptoms need urgent local medical care now.

Frequently Asked Questions

Level 5 leadership from Harvard Business Review The concept of Level 5 leadership was first introduced by a business consultant, Jim Collins. His concept was later published in a Harvard Business Review article. The concept of Level 5 leadership began with a study conducted in 1996. In the study, Collins studied 1,435 successful companies, and he distinguished 11 truly great ones from others. Collins discovered that these 11 companies were great as they were led by what he called “level 5” leaders. The level 5 leaders, according to Collins, possess humility and compassion for the company. Now, you may have a look at this hierarchy of leadership: Level 1: Highly Capable Individual At this level, you possess the knowledge and skill that enable you to excel in your work. Level 2: Contributing Team Member At level 2, you contribute your knowledge and skill to the success of the company. In other words, you work productively with other people in your company. Level 3: Competent Manager At this stage, you can organize your team effectively to achieve goals. Level 4: Effective Leader Here you can stimulate a department to meet performance objectives and achieve a vision. Level 5: Great Leader At the top level, you possess all the qualities of the previous levels, plus you harbor a unique blend of humility and will for true greatness. It is always a good idea for you to constantly reflect on your leadership. If you desire to climb up the ladder and reach a higher level of leadership, you may find it helpful to study some core leadership theories. In the following part, we would like to introduce you to four basic, yet essential, leadership theories. Core Leadership Theories Trait Theories: What are the traits that make a great leader?

As suggested by the name, the Trait Leadership Theory offers us a tool to distinguish the traits that are commonly possessed by great leaders. Dr. Gordon Allport, a psychologist, is one of the most famous promoters of the theory. In a nutshell, the Trait Leadership Theory is founded on the belief that all great leaders possess intrinsic traits that make them great leaders; in other words, a leader is born, not made. With this belief, the Trait Leadership Theory focuses…

Behavioral Theory: What does a great leader do?

Different from the Trait Leadership Theory, the Behavioral Theory describes leaders in terms of their behaviors, instead of their physical or mental traits. The Behavioral Theory believes that great leadership is a result of effective role behaviors. In this light, we can say that by learning effective behaviors, everyone can be a great leader: a great leader is made, not born. In the 1930s, one of the scholars in this domain of study, Kurt Lewin, divided the leader’s behaviors into…

Contingency Theory: What is the type of leadership this context requires?

The Contingency Theory studies which style of leadership is best suited for a particular working context. This theory believes there is no single leadership that is appropriate in all situations. That is to say, success is dependent on several variables, including the leadership style, the qualities of the teammates, and situational features (Charry, 2012). Using the words of Lamb (2013), the Contingency Theory states that effective leadership depends on a balance between the leader’s styles and that demanded by the…

Power-and-Influence Theory: How should a leader make the best use of power and influence?

The final theory we would like to introduce to you is the Power-and-Influence Theory. This theory takes a different approach from the above three theories. This theory focuses on analyzing how a leader can encourage his or her teammates to work by using his or her power and influence. To let you understand more about the theories that fall under the Power-and-Influence Theory, we would like to introduce two models. French and Raven’s Five Forms of Power This model was…

Continue exploring

Explore this topic across the RX Medical Library

Open a focused A–Z pathway or continue with closely related indexed articles. These links are educational and do not replace personal medical care.

Search this topic
Diseases A–Z Drugs A–Z Lab Tests A–Z Cancer A–Z