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Types of Science

Table of Contents

1. The Branches of Science
   1. Grouping of Science
   2. Relationships between the Branches
2. Hard Science and Soft Science
   1. Hard Science
      1. Key Characteristics
      2. Examples of Hard Sciences
   2. Soft Science
      1. Key Characteristics
      2. Examples of Soft Sciences
3. Basic and Applied Scientific Research
   1. Basic Research
      1. Characteristics of Basic Research
      2. Relationship with Applied Research
      3. Importance of Basic Research
   2. Applied Research
      1. Key Characteristics
      2. Focus on Practical Solutions
      3. Types of Applied Research
      4. Importance of Applied Research
4. Empirical and Theoretical Scientific Research
   1. Empirical Research
      1. Key Features of Empirical Research
         1. Data Collection Methods
         2. Types of Data
      2. Importance of Empirical Research
      3. Conclusion on Empirical Research
   2. Theoretical Research
      1. Key Characteristics
      2. Methods of Theoretical Research
      3. Comparison with Applied Research
      4. Importance of Theoretical Research
      5. Conclusion on Theoretical Research
   3. Empirical and Theoretical Scientific Research Conclusion
5. Natural, Theoretical, and Social Science
   1. Natural Science
      1. Key Characteristics
      2. Fields of Study
      3. Importance of Empirical Evidence in Natural Science
      4. Importance of Natural Science
   2. Theoretical Science
      1. Key Characteristics
      2. Fields of Study
      3. Importance of Theoretical Science
   3. Differences Between Empirical Science and Theoretical Science
   4. Social Sciences
      1. Key Characteristics
      2. Fields of Study
      3. Importance of Social Science
6. Deductive and Inductive Science
   1. Deductive Science
      1. Key Features
      2. Example of Deductive Reasoning
   2. Inductive Science
      1. Key Characteristics
      2. Historical Context
   3. Key Differences Between Deductive and Inductive Science
      1. Process
      2. Certainty of Conclusions
      3. Examples
7. Conclusion

Science is the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained. But science can be viewed from different perspectives, each with its own terminology.

This can be somewhat confusing for the layperson to understand and to distinguish. It may also lead the layperson to make incorrect assumptions or to properly judge the validity or certainty of the science. And they often rely on the consensus or settledness of the scientists to make this judgment, which is another problem that I have examined in my Science Article Scientific Consensus and Settled Science.

With this in mind, this article examines some of the broader, more common perspectives on the various types of science.

The Branches of Science

Scientific Branches, also referred to as sciences, scientific fields, or scientific disciplines, are commonly divided into three major groups.

Grouping of Science

Formal, Natural, and Social sciences constitute the fundamental sciences, which underpin interdisciplinarity and applied sciences such as engineering and medicine. Specialized scientific disciplines that span multiple categories may draw on other scientific disciplines but often possess their own terminology and expertise.

Formal sciences: the study of formal systems, such as those in the branches of logic, mathematics, statistics, and computer science, which use an a priori (based on hypothesis or theory rather than experiment) methodology, as opposed to empirical (derived from experiment and observation rather than theory) methodology.

Natural sciences: the study of natural phenomena (including cosmological, geological, physical, chemical, and biological aspects of the universe). Natural science can be divided into two main branches: physical science and life science (or biology). Natural science is an empirical science in which experiment and observation are paramount.

Social sciences: the study of human behavior in its social and cultural aspects, generally regarded as including sociology, psychology, anthropology, economics, political science, and history. Social science is a less empirical field because experimentation is often not possible.

Scientific knowledge must be based on observable phenomena and be capable of verification by other researchers working under the same conditions. This verifiability may vary within a scientific discipline.

Relationships between the Branches

The relationships between the branches of science are summarized in the following table:

Hard Science and Soft Science

Hard Science and Soft Science are colloquial terms used to compare scientific fields based on perceived methodological rigor, exactitude, and objectivity. In general, the formal and natural sciences are considered hard sciences, whereas the social sciences and other sciences are described as soft sciences. This distinction reflects differences in empirical research methods between the hard and soft sciences.

Hard Science

Hard science encompasses scientific fields that focus on observable and measurable phenomena. These sciences are characterized by rigorous methodologies, including controlled experiments and quantifiable data.

Key Characteristics

• Observable and Measurable: Hard sciences deal with phenomena that can be directly observed and quantified.
• Rigorous Methodologies: They employ controlled experiments and systematic observations to test hypotheses.
• Quantifiable Data: The data collected in hard sciences is numerical and can be analyzed statistically.

Examples of Hard Sciences

• Chemistry: Chemistry is the scientific study of the properties and behavior of matter. It explores the composition, structure, and changes that substances undergo during chemical reactions.
• Physics: Physics is the scientific study of matter, its motion, and behavior through space and time, along with the related concepts of energy and force. It is one of the most fundamental scientific disciplines.
• Astronomy: Astronomy is the scientific study of celestial objects and phenomena in the universe, using mathematics, physics, and chemistry to understand their origins and evolution. It encompasses the study of planets, stars, galaxies, and other cosmic entities.
• Earth Science: Earth science, or geoscience, encompasses all fields of natural science related to planet Earth, including geology, meteorology, oceanography, and atmospheric science. It aims to understand Earth's features, processes, and history to benefit humanity.

Hard science is often contrasted with soft science, which includes fields such as psychology and sociology that may not always rely on the same level of methodological rigor.

Soft Science

Soft science encompasses fields of scientific inquiry that are characterized by limitations in establishing strictly measurable criteria. These disciplines often focus on complex human behaviors and social systems, making them less quantifiable than the hard sciences. Although their variables can be more abstract and harder to measure than those in the hard sciences, critics argue that the "hard" vs "soft" distinction unfairly devalues these disciplines despite their rigorous methods and real-world impact.

Key Characteristics

• Subject Matter: Soft sciences study human behavior, social structures, and cultural phenomena.
• Methodological Rigor: They may lack the rigorous experimental controls found in hard sciences.
• Measurable Criteria: Establishing precise, quantifiable metrics can be challenging.

Examples of Soft Sciences

The following disciplines are typically classified as soft sciences:

• Psychology: Psychology is the scientific study of the mind and behavior, exploring various aspects of human thought processes, emotions, motivations, and actions. It aims to understand why individuals behave the way they do and how they interact with others.
• Sociology: Sociology is the scientific study of human society, focusing on social behavior, relationships, and cultural aspects of everyday life. It examines how societies are organized and how social structures influence individual actions and interactions.
• Political Science: Political science is the scientific study of politics, focusing on systems of governance, political behavior, and the analysis of political activities and thought. It emerged as a distinct academic discipline in the late 19th century, separating itself from history and political philosophy.
• Economics: Economics is a social science that studies the production, distribution, and consumption of goods and services, focusing on how individuals and societies allocate scarce resources. It examines human behavior and decision-making in the context of economic activities.
• Anthropology: Anthropology is the scientific study of humanity, focusing on human behavior, cultures, societies, and biological aspects, both in the present and throughout history. It encompasses various subfields, including cultural anthropology, physical anthropology, archaeology, and linguistic anthropology.

Soft science plays a crucial role in understanding the complexities of human interactions and societal dynamics, despite its challenges in measurement and predictability.

Basic and Applied Scientific Research

Basic Research

Basic research, also known as pure or fundamental research, is a type of scientific investigation aimed at advancing scientific theories. Its primary goal is to improve understanding and prediction of natural phenomena without focusing on immediate practical applications.

Characteristics of Basic Research

• Curiosity-Driven: Basic research is often motivated by a desire to explore unknown areas and expand human knowledge.
• Theoretical Focus: It emphasizes the development of theories and principles rather than practical solutions.
• Long-Term Impact: While it may not yield immediate results, basic research lays the groundwork for future applied research and technological innovations.

Relationship with Applied Research

Basic research serves as the foundation for applied research, which seeks to develop technologies or techniques based on insights gained from basic studies. The two types of research are interdependent:

Importance of Basic Research

Basic research is crucial to scientific advancement. It generates new ideas and theories that may not have immediate applications but are essential to future innovations. For instance, advances in pure mathematics have historically led to significant technological developments, such as modern computing.

Applied Research

Applied research is a systematic approach to solving specific, practical problems. It uses existing knowledge and theories to address real-world issues across fields such as business, healthcare, and education. The primary goal is to generate actionable insights that can lead to immediate solutions.

Key Characteristics

Focus on Practical Solutions

• Real-World Applications: Applied research directly addresses immediate needs and challenges.
• Use of Existing Knowledge: It leverages established theories and methodologies to find solutions.

Types of Applied Research

Importance of Applied Research

• Problem Solving: Provides effective solutions to real-world challenges.
• Innovation: Drives advancements by identifying opportunities for improvement.
• Evidence-Based Decision-Making: Supports policymakers and businesses in making informed choices.

Applied research plays a crucial role in bridging the gap between theory and practice, ensuring that scientific knowledge is effectively applied to enhance various aspects of society.

Empirical and Theoretical Scientific Research

Empirical Research

Empirical research is a systematic method of inquiry that relies on direct observation or experimentation to collect data. This approach focuses on gathering real-world evidence to answer specific research questions. It emphasizes objective verification and analysis to test theories and hypotheses.

Key Features of Empirical Research

Data Collection Methods

Empirical research employs various methods for data collection, including:

• Experiments: Controlled studies to test hypotheses.
• Surveys: Questionnaires to gather information from participants.
• Observations: Directly watching and recording behaviors or events.
• Interviews: Engaging with subjects to collect qualitative data.

Types of Data

Data in empirical research can be categorized as:

• Quantitative: Numerical data that can be measured and analyzed statistically.
• Qualitative: Non-numerical data that provides insights into concepts, thoughts, or experiences.

Importance of Empirical Research

Empirical research plays a crucial role in various fields by:

• Providing Evidence-Based Knowledge: It helps confirm or refute theories based on observable data.
• Advancing Scientific Understanding: Empirical studies contribute to the development of new theories and knowledge.
• Informing Decision-Making: It supports evidence-based decisions in areas like healthcare, education, and public policy.

Conclusion on Empirical Research

Empirical research is essential for generating reliable knowledge through systematic observation and analysis. By focusing on real-world evidence, it enables researchers to draw meaningful conclusions and advance understanding across disciplines.

Theoretical Research

Theoretical research is a systematic approach aimed at examining beliefs and assumptions to enhance understanding of a subject. It focuses on developing and testing theories rather than applying knowledge to practical problems.

Key Characteristics

• Focus on Understanding: The primary goal is to gain deeper insights into fundamental principles and mechanisms.
• Hypothesis Development: Researchers formulate hypotheses that explain phenomena and test these through thought experiments.
• Abstract Models: Theoretical research often involves creating conceptual models and frameworks to illustrate ideas.

Methods of Theoretical Research

Theoretical research employs various methods to explore concepts:

1. Thought Experiments: Researchers use hypothetical scenarios to test ideas.
2. Mathematical Modeling: This involves using mathematical frameworks to represent theories.
3. Simulations: Researchers may simulate conditions to observe potential outcomes.

Comparison with Applied Research

Importance of Theoretical Research

Theoretical research lays the groundwork for future applied research and innovation. It is crucial in various fields, including:

• Natural Sciences: Understanding fundamental properties of matter and energy.
• Social Sciences: Examining human behavior and societal structures.
• Mathematics: Developing new theories that can lead to technological advancements.

Conclusion on Theoretical Research

In summary, theoretical research is essential for generating new ideas and frameworks that can eventually lead to practical applications, even if its immediate outcomes are not directly applicable.

Empirical and Theoretical Scientific Research Conclusion

Empirical research relies on direct observation and real-world data to answer questions and test hypotheses, whereas theoretical research is based on abstract concepts and ideas without direct evidence. This distinction highlights that empirical research seeks to validate theories through practical evidence.

Natural, Theoretical, and Social Science

Natural Science

Natural science is a branch of science that focuses on understanding natural phenomena through evidence obtained from observation and experimentation (a.k.a. Empirical Research). This approach emphasizes the importance of sensory experience in the formation of knowledge.

Key Characteristics

Evidence-Based

• Observation: Empirical science relies on direct observation of phenomena.
• Experimentation: It involves conducting experiments to test hypotheses and gather data.

Fields of Study

Empirical science encompasses various disciplines, including:

• Physics: Study of matter, energy, and their interactions.
• Biology: Study of living organisms and their processes.
• Chemistry: Study of substances and their reactions.
• Astronomy: Study of celestial bodies and the universe as a whole.
• Earth Sciences: Any of the sciences that deal with the Earth or its components.
• Psychology: Study of behavior and mental processes.

Importance of Empirical Evidence in Natural Science

Empirical evidence is crucial for validating theories and hypotheses. It allows scientists to:

• Confirm or refute ideas based on observable data.
• Develop a deeper understanding of complex systems.
• Make informed predictions about future events or behaviors.

Empirical research is foundational to Natural Scientific inquiry, relying on observable and measurable evidence to build knowledge about the world and our universe.

Importance of Natural Science

Natural science is essential for understanding the natural world, solving practical problems, and informing policy decisions. It also advances society and fosters curiosity and creativity.

Theoretical Science

Theoretical science is a branch of science focused on developing new theories and hypotheses to explain natural phenomena. It primarily relies on mathematical models and reasoning, especially in fields where direct experimentation is difficult or impossible.

Key Characteristics

• Mathematical Models: Theoretical science uses mathematical frameworks to represent and predict physical systems and phenomena.
• Hypothesis Development: It involves formulating hypotheses that can explain observations and predict outcomes.
• Limited Experimental Validation: In many cases, theoretical science operates in domains where experiments cannot be easily conducted, such as in astrophysics or quantum mechanics.

Fields of Study

• Theoretical Physics: Focuses on using mathematical models to understand physical phenomena, from subatomic particles to the universe's structure.
• Theoretical Computer Science: Studies the mathematical foundations of computation, including algorithms, data structures, and computational complexity.
• Theoretical Mathematics, also known as Pure Mathematics, is the study of abstract mathematical structures and theories that underpin various scientific disciplines, as opposed to Applied Mathematics.

Importance of Theoretical Science

Theoretical science plays a crucial role in advancing our understanding of complex systems and phenomena. It provides a foundation for further research and experimentation, guiding scientists as they explore new areas of inquiry.

Differences Between Empirical Science and Theoretical Science

Empirical science focuses on observation and experimentation to gain knowledge about the natural world, whereas theoretical science is more concerned with developing abstract models and theories that explain phenomena without necessarily relying on direct observation.

Social Sciences

Social science (or the social sciences) is a branch of science devoted to the study of societies and the relationships among members within those societies. The term was formerly used to refer to the field of sociology, the original "science of society," established in the 18th century. It now encompasses a wide array of additional academic disciplines, including anthropology, archaeology, economics, geography, history, linguistics, management, communication studies, psychology, sociology, culturology, and political science.

Key Characteristics

Interdisciplinary Approach

• Social science integrates knowledge from multiple fields to provide a comprehensive understanding of human behavior and societal structures.
• This approach allows for a more nuanced analysis of complex social phenomena.

Research Methods

• Qualitative Methods: These include interviews, focus groups, and ethnography, which help explore human experiences and social contexts.
• Quantitative Methods: These involve statistical analysis, surveys, and experiments to gather numerical data and identify patterns.

Focus on Human Behavior

• Social science aims to understand how individuals and groups interact, behave, and change over time.
• It examines factors influencing behavior, such as culture, economics, and politics.

Informing Policy-Making

• Research findings in social science are often used to inform public policy and address societal issues.
• Insights gained can help organizations and governments make data-driven decisions.

Fields of Study

Social science includes several major fields, each focusing on different aspects of human behavior and societal structures. The following table outlines some of the primary disciplines:

• Sociology: Study of social behavior, patterns, and structures within societies.
• Psychology: Examination of the human mind and behavior, including emotions and cognition.
• Economics: Analysis of how societies allocate resources and produce goods and services.
• Political Science: Exploration of government systems, political behavior, and public policies.
• Anthropology: Study of human cultures, societies, and their development over time.
• Environmental Psychology: Investigation of the relationship between people and their environments.

Importance of Social Science

The characteristics of social science underscore its importance for understanding and addressing the complexities of human society. By employing diverse methodologies and an interdisciplinary approach, social scientists can effectively analyze and interpret social dynamics.

Deductive and Inductive Science

Deductive reasoning is a logical process that uses general premises to reach a specific, certain conclusion, such as "All humans are mortal; Socrates is human; therefore, Socrates is mortal." It relies on the structure of arguments to ensure that if the premises are true, the conclusion must also be true.

Inductive reasoning is a method of reasoning in which conclusions are drawn from specific observations to form general principles. It involves making predictions based on past experiences or known information, leading to conclusions that are probable but not certain. Inductive reasoning yields conclusions that are at best probable, given the premises provided.

Deductive Science

Deductive science is a method of reasoning that begins with general principles or theories and uses them to make specific predictions or conclusions. This approach is often used in hypothesis-driven research, where scientists test whether their predictions hold true against established knowledge. Deductive reasoning moves from general principles to specific conclusions.

Key Features

• General to Specific: Deductive reasoning starts with broad statements and narrows down to specific instances.
• Validity: The conclusions drawn are valid as long as the initial premises are accurate.
• Logical Structure: This method often employs syllogisms, where a major premise and a minor premise lead to a logical conclusion.

Example of Deductive Reasoning           

• Premise 1: All mammals are warm-blooded.
• Premise 2: A whale is a mammal.
• Conclusion: Therefore, a whale is warm-blooded.

In this example, the truth of the premises guarantees the truth of the conclusion, illustrating the essence of deductive reasoning in science.

Inductive Science

Inductive science refers to the traditional philosophy of the scientific method that develops theories by observing specific instances and inferring general laws from them. This approach emphasizes gathering data through observation and using it to formulate broader scientific principles.

Inductive science is a traditional philosophy of the scientific method that focuses on developing theories through observation and inference. It involves the following key aspects:

Key Characteristics

• Observation-Based: Inductive science relies on gathering data from specific instances or observations.
• Generalization: From these observations, broader scientific principles or laws are inferred. This process is known as inductive reasoning.
• Theory Development: The aim is to formulate theories that can explain the observed phenomena, leading to a deeper understanding of the natural world.

Historical Context

• Origin: The concept of inductive science dates back to the early 17th century, notably articulated by Francis Bacon, who proposed a systematic approach to scientific inquiry.
• Evolution: Over time, inductive science has evolved, facing critiques and adaptations, particularly with the rise of hypothetico-deductivism, which combines both inductive and deductive reasoning in scientific practice.

Inductive science remains a foundational aspect of scientific methodology, underscoring the importance of empirical evidence in theory formation.

Key Differences Between Deductive and Inductive Science

Process

• Deductive Science:
  • Begins with a general theory or hypothesis.
  • Conducts experiments or observations to test the validity of the theory.
  • Conclusions are drawn based on whether the observations support the initial theory.
• Inductive Science:
  • Observes specific instances or data points.
  • Analyzes these observations to identify patterns or trends.
  • Develops a general theory or hypothesis based on the observed data.

Certainty of Conclusions

• Deductive Science: Conclusions are certain if the premises are true; it follows a logical structure.
• Inductive Science: Conclusions are probable and may change with new observations; it involves generalization.

Examples

• Deductive Science: A scientist starts with the theory that "all mammals have lungs" and tests this by examining various mammals to confirm they possess lungs.
• Inductive Science: A researcher observes that "the sun rises in the east every morning" and formulates the general theory that "the sun always rises in the east."

Both deductive and inductive reasoning are essential to scientific inquiry, each serving distinct purposes in the development and testing of theories.

Conclusion

While all of these types of science may be difficult for the layperson to remember, when you are trying to judge the validity or certainty of the science, these types must be kept in mind to reach a proper conclusion. Each type has different standards of evidence and proof, and they should be judged within these standards. Even then, because there is no consensus or settledness in science, the science is subject to change or discardment based on new or revised facts.

It should also be remembered that all science must be conducted within the Scientific Method, as I have examined in my article On the Nature of Scientific Inquiry. Any scientist who strays outside the Scientific Method commits a cardinal sin of science, and their scientific results are not to be believed or acted upon.

Please note that I wrote this Article with the help of my AI Search Assistance, as I am not sufficiently knowledgeable about this topic to write them myself. Much of the AI Search Assistance results are based on the Wikipedia article on these topics, which I have hyperlinked within these Articles and Chirps. However, I have edited the AI Search Assistance results for better readability, clarity, and understandability.

Disclaimer

Please note that my Science Articles disclaimer applies to this article, as it does to all of my science articles. These science articles are for the purposes of general scientific information that is understandable to a layperson, so that they can grasp the concepts of the topic being discussed. As such, they are neither as accurate nor as thorough as academics, scientists, engineers, and science writers strive to achieve. My hope is that these science articles will be informative and interesting, and that they will pique the reader's interest in exploring these topics in further detail via the hyperlinks that I have embedded into these articles.