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Year 10: Term 4: Adolescent Cognitive Development and Sleep

Adolescents and Sleep

What is a Claim?

According to the QCAA Syllabus glossary, a claim is an assertion made without any accompanying evidence to support it.

Developing a Research Question from a Claim

Useful Websites

Note: Some possible research topics might include:

  • Impact of screen time 
  • Impact on studies and academic achievement
  • Impact on risk-taking and impulse control
  • Impact on depression

How much sleep to teenagers really need?

Later start times for teens improves grades, moods and safety 

Let teenagers sleep in

Sleep is one thing missing in busy teenage lives

There's a strong link between anxiety and depression, and sleep problems, and it goes both ways

Regular bed times as important for kids as getting enough sleep

Many teens sleep with their phones, survey finds - just like their parents

Neuroscientists identify a surprising low-tech fix to the problem of sleep-deprived teens 

News flash: Teens need adequate sleep! 

Our brains benefit from sleep. Here's why, and how parents can help teens get plenty of it 

Poor grades, miserable teen? The start of the school day could be to blame 

Psypost: Adolescents and Sleep (several articles)

Screens and sleep. The new normal: Parents, teens, screens, and sleep in the United States 

Adolescent Sleep and Cellular Phone Use - Recent Trends and Implications for Research

Sleep in adolescents: The perfect storm 

Sleep variability in adolescence is associated with altered brain development

Synchronizing education to adolescent biology: ‘let teens sleep, start school later’ 

Why children who sleep more get better grades 

The Complex Role of Sleep in Adolescent Depression

Brain development: teenagers 

Sleep and teenagers: 12-18 years 

Teens: Development 

Science News for Students

For teens, a good mood depends on good sleep 

Later school starts linked to better teen grades 

Sleep Health Foundation (Australia)

Body Clock 

Memory, Thinking and Sleep 

Quick facts and FAQ about sleep for high school students 

Teenage sleep 

UNICEF: Office of Research-Innocenti

The Adolescent Brain a multimedia resource collection


QCAA Sample Research Question Developed From a Claim


Scroll down to p 4: An example of how a  Research Question can be developed from a Claim

Articles and Reports

Commercial eBooks

QUT C.R.A.A.P. Test for Evaluating Websites

Check the quality of your websites using these criteria (adapted from QUT Library):

Currency: Timeliness of the information

  • When was the information published, posted or last updated?
  • Is the information current for your topic and field of study? How recent does it have to be? Can older sources work just as well?
Relevance: Importance of the information for your needs
  • Is the information appropriate for a senior secondary course?
  • Is this an adequately in-depth examination or a quick summary of the topic?
  • Who's the intended audience? Is it the general public, a student, a researcher or industry?
  • Is the level of information too basic or too advanced for your needs?

Authority: Source of the information

  • Is the author/authoring body (individual person, or institution, or organisation) established and reputable?
  • Are their qualifications, credentials, expertise, experience, educational background and previous work (if any) relevant and do they add credibility to the source?
  • Has the piece been published by a well-known and respected publisher or organisation?
  • Do references to other sources support the writing ie is a Reference List provided?

Accuracy: Reliability and correctness of the information

  • Where does the information come from, and is it supported by evidence?
  • Does it have a Reference List or Bibliography so you can easily find and verify the sources used?
  • Are there any spelling, grammar, or other typographical errors?

Purpose: Reason the information exists

  • What is the purpose of the information? Why was it written?
  • Does the point of view appear objective, unbiased and impartial?
  • Is the viewpoint of the author's affiliation/ sponsors reflected in the message or content?
  • Does the author acknowledge alternative versions of the issues or facts?


The ENTIRE collection of resources provided by the BBC Library can now be searched on ONE single, powerful search platform, which retrieves print books, eBooks, database articles and websites. Click HERE for assistance.

Useful Databases

Useful Academic Websites - Excellent!

This link is to an entire journal called 'Nature and Science of Sleep'

An excellent free source to use, a little easier than PubMed.

An excellent source of a wide variety of biomedical literature from MEDLINE, life science journals, and online books

Has some excellent academic articles on sleep and cognitive development in adolescents.

Google Scholar's searches are set to cover scholarly material more often than 'regular' Google. It can be frustrating, as much of an article or book is missing or by purchase only. Read the article below on the advantages an disadvantages of using it.

Tips for using Google Scholar: Add 'filetype:pdf' to any search term, which will limit your results to only pdf files, and you should get the full results. 

Advanced Web Searching Tips

1. Use 'Ctrl F' (Control + Find) to search for particular terms easily in a long document, whether from a website or a database article.
2.  Use a Boolean command - put double inverted commas around phrases to limit and improve your results eg "energy drinks cardiovascular problems children". 
3. Use a Google domain command eg site:edu OR site:gov to limit results to a CERTAIN DOMAIN such as education or government eg biodiesel site:edu
4. Use a Google command to limit results to the MOST RECENT: After you get your results, choose the Google Menu Bar, and choose 'Tools'. Then on the far left, at the drop-down menu next to 'Any Time', you can choose 'Within the last year' (or less, if you prefer), but generally, you can choose 'Custom Range' at the bottom, as often the last 3-4 years would be sufficient for a recent search.

MyBib Referencing Generator - APA 7

Manage your bibliography using "MyBib" - Referencing - LibGuides at  Melbourne High School

MyBib is an online referencing generator to help you with in text references and your List of References.


  • Sign up for an account so that it will store the references for your assignment. Add it to your bookmark bar to find it quickly.
  • Install the Chrome extension to make your referencing even faster.
  • Make sure everything in your Reference List has a corresponding In-Text citation in the body of your essay.