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Kinsey scale

Kinsey scale is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Kinsey scale rather than just read about it. In short: The Kinsey scale, also called the Heterosexual–Homosexual Rating Scale, is used in research to describe a person's sexual orientation based on one's experience or response at a given time. The scale typically ranges from 0, meaning exclusively heterosexual, to a 6, meaning exclusively homosexual.

Kinsey scale — main illustration
Kinsey scale — illustration

Key takeaways

  • Kinsey scale belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Kinsey scale to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Kinsey scale from memory before moving on to harder problems.

Reference excerpt

The Kinsey scale, also called the Heterosexual–Homosexual Rating Scale, is used in research to describe a person's sexual orientation based on one's experience or response at a given time. The scale typically ranges from 0, meaning exclusively heterosexual, to a 6, meaning exclusively homosexual. In both the male and female volumes of the Kinsey Reports, an additional grade, listed as "X", indicated "no socio-sexual contacts or reactions" (asexuality). The reports were first published in Sexual Behavior in the Human Male (1948) by Alfred Kinsey, Wardell Pomeroy, and others, and were also prominent in the complementary work Sexual Behavior in the Human Female (1953).

History Alfred Kinsey, the creator of the Kinsey scale, is known as "the father of the sexual revolution." The Kinsey scale was created in order to demonstrate that sexuality does not fit into two strict categories: homosexual and heterosexual. Instead, Kinsey believed that sexuality is fluid and subject to change over time. Rather than using sociocultural labels, Kinsey primarily used assessments of behavior in order to rate individuals on the scale. Kinsey's first rating scale had thirty categories that represented thirty different case studies, but his final scale has only seven categories. Over 8,000 interviews were conducted throughout his research. Introducing the scale, Kinsey wrote:

Males do not represent two discrete populations, heterosexual and homosexual. The world is not to be divided into sheep and goats. It is a fundamental of taxonomy that nature rarely deals with discrete categories... The living world is a continuum in each and every one of its aspects. While emphasizing the continuity of the gradations between exclusively heterosexual and exclusively homosexual histories, it has seemed desirable to develop some sort of classification which could be based on the relative amounts of heterosexual and homosexual experience or response in each history [...] An individual may be assigned a position on this scale, for each period in his life. [...] A seven-point scale comes nearer to showing the many gradations that actually exist.

Table of the scale The Kinsey scale ranges from 0 for those interviewed who solely had desires for or sexual experiences with the opposite sex, to 6 for those who had exclusively same sex desires or experiences, and 1–5 for those who had varying levels of desire or experiences with both sexes, including "incidental" or "occasional" desire for sexual activity with the same sex. It did not reference whether they "identified" as heterosexual, bisexual, or homosexual.

Kinsey recognized that the seven categories of the scale could not fully capture every individual's sexuality. He wrote that "it should be recognized that the reality includes individuals of every intermediate type, lying in a continuum between the two extremes and between each and every category on the scale." Although sociologists Martin S. Weinberg and Colin J. Williams write that, in principle, people who rank anywhere from 1 to 5 could be considered bisexual, Kinsey disliked the use of the term bisexual to describe individuals who engage in sexual activity with both males and females, preferring to use bisexual in its original, biological sense as hermaphroditic; he stated, "Until it is demonstrated [that] taste in a sexual relation is dependent upon the individual containing within his anatomy both male and female structures, or male and female physiological capacities, it is unfortunate to call such individuals bisexual." Psychologist Jim McKnight writes that while the idea that bisexuality is a form of sexual orientation intermediate between homosexuality and heterosexuality is implicit in the Kinsey scale, that conception has been "severely challenged" since the publication of Homosexualities: A Study of Diversity Among Men and Women (1978) by Weinberg and the psychologist Alan P. Bell. Furthermore, although the additional X grade used to mean "no socio-sexual contacts or reactions" is today described as asexuality, psychologist Justin J. Lehmiller stated, "the Kinsey X classification emphasized a lack of sexual behavior, whereas the modern definition of asexuality emphasizes a lack of sexual attraction. As such, the Kinsey Scale may not be sufficient for accurate classification of asexuality."

Findings

Kinsey reports

The Kinsey Reports are two published works, Sexual Behavior in the Human Male (1948) and Sexual Behavior in the Human Female (1953). These reports discuss the sexual attractions, behaviors, and development of human males and females. The data to scale the participants comes from their "psychosexual responses and/or overt experience" in relation to sexual attraction and activity with the same and opposite sexes. The inclusion of psychosexual responses allows someone with less sexual experience to rank evenly with someone of greater sexual experience.

Men: 11.6% of white males aged 20–35 were given a rating of 3 for this period of their lives. The study also reported that 10% of American males surveyed were "more or less exclusively homosexual for at least three years between the ages of 16 and 55" (in the 5 to 6 range). Women: 7% of single females aged 20–35 and 4% of previously married females aged 20–35 were given a rating of 3 for this period of their lives. 2% to 6% of females, aged 20–35, were given a rating of 5 and 1% to 3% of unmarried females aged 20–35 were rated as 6. The results found in Sexual Behavior in the Human Female show a higher number of men who lean towards homosexuality than recorded for the women. Kinsey addresses that the result is contrary to reports that women have more homosexual leanings than men. He posits that such reports are due to the "wishful thinking on the part of such heterosexual males."

Impact and later developments

General

… excerpt ends here. Continue reading the full article.

Illustrations

Kinsey scale: Kinsey scale of sexual responses, indicating degrees of sexual orientation
Kinsey scale of sexual responses, indicating degrees of sexual orientation
Kinsey scale illustration

Worked examples

Example 1 — a first encounter with Kinsey scale

Start with the simplest possible case. Write down what Kinsey scale claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Kinsey scale before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Kinsey scale ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Kinsey scale

In research
Kinsey scale appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Kinsey scale in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Kinsey scale is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1948 introductions, Asexuality, Bisexuality, so understanding it makes those chapters shorter.
In everyday life
Look for Kinsey scale outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Kinsey scale in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Kinsey scale means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Kinsey scale out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kinsey scale in simple terms?

The Kinsey scale, also called the Heterosexual–Homosexual Rating Scale, is used in research to describe a person's sexual orientation based on one's experience or response at a given time. The scale typically ranges from 0, meaning exclusively heterosexual, to a 6, meaning exclusively homosexual.

Why does Kinsey scale matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Kinsey scale?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Kinsey scale.

Tags

  • 1948 introductions
  • Asexuality
  • Bisexuality
  • Heterosexuality
  • Homosexuality
  • Scales
  • Sexology

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