Top answers

What’s the difference between validity and reliability?

Research in psychology needs to produce results that are both reliable and valid . In order to do so, also the methods (measures) used in the studies need to reliable and valid. Reliability refers to how con...
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Answered by Sheila C. • Psychology tutor
42774 Views

What is chromatin?

The length of a strand of human DNA is much longer than you’d think! In fact if it was laid out in a straight line it would be several metres in length. The size of a nucleus is approximately 6 micrometers i...
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Answered by Jake H. • Biology tutor
14369 Views

How do I write a good essay for my English Literature GCSE?

Essay writing, for coursework but especially for exams, can seem stressful, but there are some simple steps to writing good essay answers every time. Here are some of my top tips: 1. Always start with a plan...
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21991 Views

How do I conjugate present tense verbs in Arabic?

Arabic verbs change according to pronouns a lot more than English verbs, but luckily they tend to follow regular patterns, so they are not too hard to learn. Here is a simple model to follow using the presen...
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Answered by Abigail D. • Arabic tutor
6848 Views

How do I use the subjunctive in Spanish?

The subjunctive is hard even for native speakers, so don't worry! There are a few handy rules to remember. Use the subjunctive in Spanish: 1. If the action you are describing did not actually happen: "S...
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Answered by Abigail D. • Spanish tutor
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