Statistics without Tears: An Introduction for Non-Mathematicians

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Statistics without Tears! - BOPA Statistics without Tears! - BOPA

That being said there were some good tidbits of information on misuse of statistics by third parties to strengthen their cause. Biases in marketing is a topic that interests me since I am obviously a consumer myself. To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. This is an excellent introduction to statistical thinking. The language used is conversational and easy to understand as you are guided through examples and ways of thinking about statistics. Speaker: Sian Williams is a Senior Lecturer in Health Psychology and Pharmacy Practice at the University of Brighton. She has over 20 years experience of teaching statistics to undergraduates and postgraduates in a range of health professions and with a range of experience (and levels of statistics-phobia!).

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If cases of a disease are being ascertained through their attendance at a hospital outpatient department (OPD), rather than by field surveys in the community, it will be necessary to define the population according to the so-called catchment area of the hospital OPD. For administrative purposes, a dispensary, health center or hospital is usually considered to serve a population within a defined geographic area. But these catchment areas may only represent in a crude manner with the actual use of medical facilities by the local people. For example, in OPD study of psychiatric illnesses in a particular hospital with a defined catchment area, many people with psychiatric illnesses may not visit the particular OPD and may seek treatment from traditional healers or religious leaders. This book was probably the most lucidly written book that I have come across that explains Statistics to a person entirely alien to the field. I have a rather irregular history with statistics. After disliking maths GCSE but getting a very good mark, I avoided A-level maths like the plague. Upon arriving at university as a fresh-faced undergrad, I was disconcerted to discover that the first year of my social science degree included a compulsory statistics module. I passed that, then chose modules with no maths for the remaining two years. My dissertation was entirely qualitative. When I returned to studying as postgrad years later, I’d grudgingly come to accept that statistics are useful. My masters course included two statistics modules, which I appreciated the purpose of without enjoying. Then somehow, during the peculiar derangement of my PhD, I ended up teaching myself to use a fairly complex statistical methodology: multinomial logistic regression. The majority of my PhD research was quantitative. Now I find myself actually teaching statistics to undergrads. My 18 year old self would be amazed and horrified. It’s quite possible that I’m still outgrowing an ingrained dislike of maths that has much more to do with uninspired school teaching than the subject itself. In any case, I have a decent grasp of what stats are and why they’re useful, by social science standards.

Statistics without tears: Populations and samples - PMC Statistics without tears: Populations and samples - PMC

Aside from the mathematical complexities, I was plagued by programming languages that seem to have been designed by dinosaurs (I’m looking at you, “R”) and interaction with material that I thought I would have no relationship with following my graduation.

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The choice of sampling methods is usually dictated by feasibility in terms of time and resources. Field research is quite messy and difficult like actual battle. It may be sometimes difficult to get a sample which is truly random. Most samples therefore tend to get biased. To estimate the magnitude of this bias, the researcher should have some idea about the population from which the sample is drawn. In conclusion, the following quote cited by Bradford Hill[ 4] elegantly sums up the benefit of random sampling: So why read this book? Because the undergrads I taught this term, and probably the postgrads I’ll teach next term, appear petrified and confused by quantitative methods. It’s so difficult to tell whether students are really grasping the concepts you explain in lectures, particularly when there’s no exam to test comprehension. These are social science students and their prior exposure to stats seems to have been minimal. When I spotted this book in library, I wondered if it could help me to explain the basics more clearly. And I think it just might. I found it very easy to follow and a helpful reminder. Rowntree’s explanation of the difference between parametric and non-parametric tests is especially lucid and useful. That said, I doubt I'll have time to include such careful and painstaking explanations in my lectures. I’ll definitely recommend the book to students, though. It’s not at all fashionable to suggest students read entire books, but honestly I think this one is much better than an explanatory video, the more trendy teaching medium. Catchment areas depend on the demography of the area and the accessibility of the health center or hospital. Accessibility has three dimensions – physical, economic and social.[ 2] Physical accessibility is the time required to travel to the health center or medical facility. It depends on the topography of the area (e.g. hill and tribal areas with poor roads have problems of physical accessibility). Economic accessibility is the paying capacity of the people for services. Poverty may limit health seeking behavior if the person cannot afford the bus fare to the health center even if the health services may be free of charge. It may also involve absence from work which, for daily wage earners, is a major economic disincentive. Social factors such as caste, culture, language, etc. may adversely affect accessibility to health facility if the treating physician is not conversant with the local language and customs. In such situations, the patient may feel more comfortable with traditional healers.

Statistics without tears, a primer for non-mathematicians, Statistics without tears, a primer for non-mathematicians,

Clinical and demographic characteristics define the target population, the large set of people in the world to which the results of the study will be generalized (e.g. all schizophrenics). Please list any fees and grants from, employment by, consultancy for, shared ownership in or any close relationship with, at any time over the preceding 36 months, any organisation whose interests may be affected by the publication of the response. Please also list any non-financial associations or interests (personal, professional, political, institutional, religious or other) that a reasonable reader would want to know about in relation to the submitted work. This pertains to all the authors of the piece, their spouses or partners.This article has been cited by the following publications. This list is generated based on data provided by This is a chance to finally make (more?) sense out of what you've learnt in school, especially regarding the estimation of a population via sampling (e.g. standard error), how significant a result is (e.g. z-test, t-test). Eh, it was ok. I'm not sure why these books seem to be so against updating to show use cases with current computational software (R, Python,...even...ugh, Excel), but they do seem to cavil at the idea of it. That would be fine, as I read this book looking for any little intuitions that I may have missed about some basic topics, but unfortunately, both the intuitions and the theoretical portions felt half finished. If you're looking for a refresher on statistics that helps with intuitions, I would definitely go with Head First Statistics over this one. I consider this a must-read if you've ever taken postsecondary or college-level math (which would have covered the basic statistics mentioned in the book).

Statistics without Tears by Derek Rowntree | Waterstones Statistics without Tears by Derek Rowntree | Waterstones

As a library, NLM provides access to scientific literature. Inclusion in an NLM database does not imply endorsement of, or agreement with, In many surveys, studies may be carried out on large populations which may be geographically quite dispersed. To obtain the required number of subjects for the study by a simple random sample method will require large costs and will be cumbersome. In such cases, clusters may be identified (e.g. households) and random samples of clusters will be included in the study; then, every member of the cluster will also be part of the study. This introduces two types of variations in the data – between clusters and within clusters – and this will have to be taken into account when analyzing data.Stat อย่างผม อ่านแล้วอยากจะดึงคนเขียนมาจุ๊บด้วยความขอบคุณสักที เป็นสถิติแบบที่ใช้เรียนตอนป.ตรีเลย แต่อธิบายด้วยภาษาคน และการใส่ตัวอย่างมาแบบไม่มีกั๊ก ทำให้เนื้อหาหลายๆ อย่างที่ตอนเรียนเรารู้สึกว่า "ทำไมมันนามธรรมจังวะ? ตกลงไอ้ที่เรากำลังคำนวณกันอยู่นี่มันคืออะไร?" เคลียร์ขึ้นมาเยอะเลย An easy and useful read on the subject of Statistics. This is a book for the layman that (by its own definition) does not go into the mathematical equations as "there are enough books on that". What it does, however, is to introduce and explain the concepts in a way that can be easily digested. My one complaint would be that there are some errors in the few equations that it does use. Regardless, this should be the first book anyone should read if they want an introduction to the world of statistics. It contains no calculations and it is very engaging. Rowntree makes statistics more “human” by shedding away complicated statistical formulae and replacing them with robust conversations. He explores the concepts that these formulae describe, pausing throughout the book to ask questions that force you to think. This give-and-take approach made the book feel conversational, a momentous accomplishment in statistics in my view. Research workers in the early 19th century endeavored to survey entire populations. This feat was tedious, and the research work suffered accordingly. Current researchers work only with a small portion of the whole population (a sample) from which they draw inferences about the population from which the sample was drawn.