astronomy

J. Richard Landis

J. Richard Landis is a astronomy 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 J. Richard Landis rather than just read about it. In short: J. Richard Landis is an American biostatistician and emeritus Professor of Biostatistics in the Perelman School of Medicine at the University of Pennsylvania, where he is also the senior vice chair of the Department of Biostatistics, Epidemiology and Informatics, director of the Biostatistics Unit within the Center for Clinical Epidemiology and Biostatistics, and faculty Director of the Clinical Research Computing U…

Key takeaways

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

Reference excerpt

J. Richard Landis is an American biostatistician and emeritus Professor of Biostatistics in the Perelman School of Medicine at the University of Pennsylvania, where he is also the senior vice chair of the Department of Biostatistics, Epidemiology and Informatics, director of the Biostatistics Unit within the Center for Clinical Epidemiology and Biostatistics, and faculty Director of the Clinical Research Computing Unit.

Education and academic career Landis received his bachelor's degree from Millersville University in 1969 and his M.S. and Ph.D. from the University of North Carolina at Chapel Hill in 1973 and 1975, respectively. He was a faculty member at the University of Michigan School of Public Health from 1975 to 1988, where his positions included Professor of Biostatistics. In 1988, he joined the faculty of Pennsylvania State University as the founder of the Center for Biostatistics and Epidemiology (CBE) at the Milton S. Hershey Medical Center. He served as the director of the CBE for nine years until joining the faculty of the University of Pennsylvania in 1997.

Honors and awards Landis received the Mortimer Spiegelman Award from the American Public Health Association in 1984. He was elected a member of the International Statistical Institute in 1985 and a fellow of the American Statistical Association in 1987. In 2011, he received the Marvin Zelen Leadership Award in Statistical Science from the Harvard School of Public Health.

References

External links Faculty page J. Richard Landis publications indexed by Google Scholar

Worked examples

Example 1 — a first encounter with J. Richard Landis

Start with the simplest possible case. Write down what J. Richard Landis claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 J. Richard Landis 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 J. Richard Landis 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 J. Richard Landis

In research: J. Richard Landis appears in astronomy 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 J. Richard Landis 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: J. Richard Landis is common in secondary-school and first-year university syllabi. It links to neighbouring topics American biostatisticians, American statistician stubs, Elected Members of the International Statistical Institute, so understanding it makes those chapters shorter.
In everyday life: Look for J. Richard Landis 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 J. Richard Landis in 20 minutes

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

Frequently asked questions

What is J. Richard Landis in simple terms?

Why does J. Richard Landis matter?

Because it connects several astronomy 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 J. Richard Landis?

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 J. Richard Landis.