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8 Paired samples T-Tests

Activity 7

0 hours 20 minutes

This activity introduces the paired samples t-test. It is also known as the ‘within participants’ or ‘related’ t-test. It is used when your d
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Goal Setting - Kids Need It
This video will help parents better prepare children to learn how to set and achieve goals. (01:27)
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Introduction

Until the 1980s, the icy satellites of the outer planets were scarcely thought of as places where life could ever have existed. Few could have imagined that one of them, Europa, would within twenty years have become the rival of Mars as a priority for astrobiological study. This unit recounts the history of our changing perceptions of the icy satellites, examines the available evidence for their internal structures, and considers the niches offered for life to begin and to be sustained. In th
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One Minute Romanian - flyer
From the makers of the award-winning online language course Coffee Break Spanish comes a new range of titles aimed at busy people who want to acquire the absolute basics of a language. One Minute Languages from the Radio Lingua Network will introduce learners to a new language from scratch. The course is made up of ten lessons and covers topics including basic greetings, introducing yourself, and dealing with language problems. You’ll also learn numbers and other useful words and phrases whi
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Ancient Human Sacrifice
With the Romans closing in, desperate Druids offer the ultimate sacrifice to try to save themselves from annihilation. Human remains from the first century A.D. are found in 1984 and scientifically examined in this video. Not recommended for children under the age of 15 due to the graphic nature of the final scene. (4:31)
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2.5 The emperor

With Napoleon's coronation as emperor in 1804, a new type of official image was once again required. Portraits of the emperor in his ceremonial robes were commissioned from several established artists; these all revived a traditional type of royal portraiture from the eighteenth century. The example shown in Plate 10 is by a former David student, Francois Gérard (1770–1837), by now a fashionable portrait painter (see Author(s): The Open University

4.1 Initial assessment

To find the right person for the job, you need to have an accurate idea of the job itself and of the particular skills and attributes it demands. This can be carried out in a series of stages, as shown in Figure 1.

Navigation Word Problem (Trigonometry)
Trigonometry problem involving two ships colliding. In an easy conversational tone, the instructor different colors to emphasis his points. For high school students.
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Europe Day Ahead: Greek buyback deadline looms
Dec. 10 - Bondholders have until midday Tuesday to take part in the Greek debt buyback. The latest German ZEW survey may show further weakness and BoE governor Mervyn King speaks in New York.
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Count by 5's

Video link (see supported sites below). Please use the original link, not the shortcut, e.g. www.youtube.com/watch?v=abcde

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Image Type Tags
Brief guidance notes about Image Type Tags replacing Classification labels
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1.5.7 Referencing

We mentioned above that we need to reference sources to ensure we abide by copyright legislation. But there is another reason we need to give accurate references to items we use - so we can share it.

Consider this scenario. A friend says they've just read an interesting article where Joshua Schachter, founder of Delicious has spoken about why it isn't a faceted search system, and you should read it. How would you go about finding it? Would you start looking in a news database, a search
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Identify and Sort Basic Geometric Shapes
Learn about circles, squares, triangles and rectangles.  A circle is round, a triangle has three sides, a square had four sides that are all the same size and a rectangle has four sides with two the same size and two more that are a different size. 

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Procedimentos metodol?gicos para simula??o computacional de ambientes hist?ricos [Methodological pro
This study aims to present a classification of methodological procedures for using computer programmes to simulate architectural historical heritage. Produced for a Master?s Degree dissertation in Architecture, the methodology was developed based on several analyses of applications, possibilities and restrictions, with the assistance of photogrammetric reconstruction and several computer-graphics programmes. The files generated enable production of animations recording the changes experienced by
Author(s): Antoniazzi, Asdrubal; Airton Cattani; Jaqueline Vi

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1.4 The diversity of psychology

Since psychology is concerned with the full range of what makes us human, it is not surprising that the scope of the discipline is extensive. Psychology has always been a diverse, multi-perspective discipline. This partly results from its origins. Psychological questions were asked first by philosophers, then increasingly by biologists, physiologists and medical scientists. The diverse origins of psychology are visible if we consider four ‘founders’ of psychology – all of whom produced
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Introduction

Why are schools in the UK run by school governors? This unit will examine how the role has developed and the main tasks and responsibilities that exist today. We will also look at the need for self-evaluation and how the setting of a clear strategic direction can help governors achieve the required targets.


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Faculty Advising Session: International Law (Public and Private); Immigration
Faculty Advising Session: International Law (Public and Private); Immigration
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Taco Pinwheels
Food demo by Ellen Carter
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4.1 Human predation and extinctions

There are a number of ways in which humans have altered ecosystems, that have led to the decline of particular species. We will leave to one side any major interference such as felling forests to provide land for agricultural and urban development, and instead begin by looking at examples where we have eroded or eradicated stocks of particular species. This has notably been a consequence of the over-exploitation of food species (prey items). Predators do not normally eliminate their prey (see
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Powers of Minus Ten - Cells and Genetics App for iOS
'Powers of Minus Ten lets you zoom in to explore human cells and molecules! Discover some of the basic concepts in biology and learn about the structures of a few of the key cells, proteins, and molecules found in our bodies.''POMT is...- meant to be a general introduction to the science behind cells and genetics- an ever-expanding visual guide to the microcosm (More content is constantly in the works)- a relatively seamless zooming experience that emphasizes the interconnectedness of life's pro
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