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How can I critically evaluate a study?

To critically evaluate a study at A-level, I recommend following the ‘GRAVE’ method: G eneralisability - how generalisable is the sample to the wider population? Is the sample size large or small? Does it on...
EP
Answered by Ellie P. • Psychology tutor
2759 Views

What is the difference between the verbs 'ser' and 'estar' (meaning 'to be' in English)?

Both of these verbs are irregular, and mean 'to be', but for different situations.Ser is used when talking about permanent, or lasting attributes, the essential essence of something. A helpful acronym to rem...
AM
Answered by Angharad M. • Spanish tutor
2548 Views

(19x - 2)/((5 - x)(1 + 6x)) can be expressed as A/(5-x) + B/(1+6x) where A and B are integers. Find A and B

First we can equate (19x - 2)/((5 - x)(1 + 6x)) to A/(5-x) + B/(1+6x) which means: (19x - 2)/((5 - x)(1 + 6x)) = A/(5-x) + B/(1+6x). Then we will turn the RHS into a single fraction: (19x - 2)/((5 - x)(1 + 6...
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Answered by Tarek S. • Maths tutor
4088 Views

Explain the process of phagocytosis

Phagocytes detects pathogen due to chemical produced by the pathogen. The phagocyte move via a concentration gradient to the pathogen. The phagocyte engulfs the pathogen thereby producing a phagosome where t...
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Answered by Sam C. • Biology tutor
9217 Views

How does the poetic form of the poem Aunt Julia, by Norman MacCaig, present the idea of a happy home?

The free verse form of ‘Aunt Julia’ presents the idea of a happy childhood home through irregularly-sized stanzas and a relaxed rhyme scheme. The rhythm of the poem comes predominantly through alliteration a...
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Answered by Catherine B. • English tutor
5494 Views