How can socioeconomic factors influence scientific research?
They can affect access to funding, participation in research, research priorities and access to scientific technologies.
Why must researchers consider potential harm to participants?
Ethical research requires risks to be minimised and justified by potential benefits.
What is a hypothesis?
A testable prediction or proposed explanation for an observation.
What was the Mozart effect claim?
The claim that listening to Mozart or classical music temporarily improves certain aspects of cognitive performance.
Why should extraordinary claims be tested rather than simply accepted?
Scientific conclusions should be based on reliable evidence rather than popularity, authority or anecdote.
What is the purpose of the discussion?
To interpret results, identify patterns, evaluate the hypothesis and discuss limitations and improvements.
Why is scientific fraud harmful?
It can mislead other scientists, waste resources, damage public trust and potentially cause harm if incorrect findings are acted upon.
What should an aim state?
What the investigation is attempting to investigate or determine.
Why can genetic modification raise ethical questions?
It can involve environmental, animal welfare, food safety, social and economic considerations.
Does correlation prove causation?
No.
Should explanations of results normally be placed in the results section?
No. Detailed interpretation belongs primarily in the discussion.
Why can commercialising Indigenous plant knowledge create ethical issues?
Benefits may not be fairly shared and cultural knowledge may be used without appropriate permission or recognition.
How can validity be improved?
Control confounding variables and ensure the experimental design directly tests the hypothesis.
A new digital sensor produces measurements every second instead of one measurement every five minutes. What advantage does this provide?
It provides higher temporal resolution and can reveal changes that might otherwise be missed.
What factors contributed to the Chernobyl disaster?
Reactor design issues, unsafe operating procedures, inadequate safety systems and human factors contributed.
What is correlation?
A statistical relationship between two variables.
How could publish-or-perish pressures potentially contribute to research misconduct?
Pressure for productivity or significant findings could create incentives for unethical behaviour, although it does not excuse misconduct.
How can researchers check whether a journal is legitimate?
Investigate its publisher, editorial board, peer-review process, indexing and reputation.
What is one lesson from Chernobyl for science and technology?
Complex technologies require strong safety systems, appropriate regulation, training and responsible decision-making.
How has science contributed to the development of flight?
Research into aerodynamics, materials, propulsion and engineering enabled increasingly effective aircraft designs.
What is falsified science?
Research in which data, results or other information are deliberately manipulated or fabricated.
What is validity?
The extent to which an investigation measures what it is intended to measure.
What organism did Marshall and Warren identify as being associated with peptic ulcers?
Helicobacter pylori (H. pylori).
What did research into hormone replacement therapy and heart disease demonstrate about scientific understanding?
Early observational evidence and later controlled research produced different conclusions, demonstrating the importance of study design and distinguishing corre
What should the results section contain?
Observations and processed data, often presented using tables, graphs and calculations.
What does causation mean?
A change in one variable directly contributes to a change in another variable.
What happens to the observed frequency when a sound source approaches an observer?
The observed frequency increases and the wavelength decreases.
Why is a control group important?
It provides a comparison against which the effect of the treatment or independent variable can be evaluated.
What is a double-blind trial?
A trial where neither the participants nor the researchers directly interacting with them know who receives the treatment or control during the study.
What is sampling?
Selecting a subset of a population to represent the larger population.
How can culture influence scientific research?
Cultural values and perspectives can influence research priorities, interpretation and acceptance of scientific findings.
What is a fake journal?
A publication that falsely presents itself as a legitimate scientific journal.
What is statistical bias?
A systematic distortion in the collection, analysis or interpretation of statistical data.
If the temperature of a gas increases and pressure remains constant, what happens to its volume?
It increases.
Why is reliance on anecdotes weak scientific evidence?
Individual experiences are not controlled and may not represent the wider population.
What is analogue data collection?
Measurement represented using continuously varying physical quantities, such as a liquid thermometer.
Why is informed consent important in human research?
Participants should understand relevant information about the research and voluntarily agree to participate.
Why is vaccination important to public health?
Vaccination helps reduce the spread and impact of infectious diseases and protects individuals and communities.
What is the role of a scientific code of conduct?
It establishes standards for responsible professional behaviour and research practice.
A student investigates whether temperature affects reaction rate. What is the independent variable?
Temperature.
What is digital data collection?
Measurement converted into numerical or electronic data that can be displayed, stored and analysed digitally.
Why does scientific knowledge alone not always determine a policy decision?
Decisions may also involve ethics, economics, cultural values, environmental impacts and community priorities.
What is scientific fraud?
Deliberate deception or misconduct in scientific research, such as fabrication or falsification of data.
What did Eratosthenes calculate?
The approximate circumference of Earth.
What is one limitation of using a balloon to investigate Charles' Law?
The balloon may stretch or have changing pressure, meaning pressure may not remain perfectly constant.
Why should Indigenous knowledge not simply be treated as a freely available scientific resource?
It may be culturally significant knowledge with community ownership and ICIP considerations requiring appropriate consultation, consent and recognition.
What did Jan Baptist van Helmont investigate?
He investigated how plants gain mass as they grow.
What is bias in medicine?
Factors that systematically influence medical research or treatment outcomes away from an unbiased assessment.
Give one advantage of analogue equipment.
It can provide a simple, direct measurement and may work without electronic processing.
Why is "scientists don't want you to know the truth" a warning sign?
It can attempt to make a claim unfalsifiable by dismissing contradictory evidence as part of a conspiracy.
What is one common trick used by pseudoscience?
Using scientific-sounding terminology without providing valid evidence.
Give one example of primary data.
Measurements collected during a student's experiment.
Why are placebos used in medical research?
To determine whether improvements are due to the treatment itself rather than expectations or other factors.
Why was Marshall and Warren's discovery significant?
It challenged the accepted belief that ulcers were mainly caused by stress, lifestyle or excess stomach acid and demonstrated the importance of bacteria in ulce
Why should scientists accurately report their data?
Other scientists need trustworthy evidence to reproduce, evaluate and build upon research.
What is sample bias?
When a sample does not accurately represent the population being studied.
How can economics influence scientific research?
Funding availability, commercial interests and economic priorities can influence which research is undertaken and developed.
Give an example of technology improving scientific understanding.
Satellites allow scientists to collect large-scale data about Earth's atmosphere, oceans, climate and land surfaces.
In the same experiment, what could be the dependent variable?
Reaction rate, such as time taken for a reaction to produce a set amount of product.
Why is random sampling useful?
It reduces the likelihood of researcher selection bias.
What did Joseph Priestley investigate using plants and gases?
He investigated whether plants could restore or improve air that had been altered by burning or respiration.
What should you compare when examining a media article and the original research paper?
The research methods, sample, results, limitations and whether the media's conclusions accurately represent the research.
What is scientific ethics?
Principles that guide responsible and appropriate behaviour in scientific research and communication.
Why can scientific findings be misrepresented by the media?
Complex research may be simplified, sensationalised or presented without important context.
How could the halo effect influence science communication?
People may accept a scientific claim because they admire or trust the person presenting it rather than evaluating the evidence.
What did Barry Marshall and Robin Warren investigate?
The causes of peptic ulcers.
A journal accepts almost every submitted paper after payment with little evidence of genuine peer review. What concern should researchers have?
It may be a predatory journal.
What is pseudoscience?
A belief, practice or claim presented as scientific without adequate scientific evidence or appropriate scientific methods.
What generally happens to reaction rate when temperature increases?
Reaction rate generally increases.
Why can headlines about scientific studies be misleading?
They may exaggerate findings, omit limitations or imply causation when research only demonstrates correlation.
What does Charles' Law describe?
The relationship between the volume and temperature of a gas at constant pressure.
Give one reason why correlation does not prove causation.
A third variable may influence both variables.
What does ICIP protect?
Indigenous peoples' cultural knowledge, expressions, practices, designs, stories, languages and associated intellectual property.
What happened at Chernobyl?
A nuclear reactor accident in 1986 caused a major release of radioactive material.
What is a predatory journal?
A publication that exploits the academic publishing system, often prioritising fees over rigorous editorial and peer-review standards.
What was wrong with van Helmont's conclusion about plant growth?
He concluded that almost all the plant's mass came from water, because he did not account for carbon dioxide from the air.
Why is Chernobyl an example of the interaction between science, technology and society?
The disaster involved scientific and engineering knowledge, technological design, human decisions, regulation, political systems and major social and environmen
A scientist removes data points because they do not support the hypothesis. What ethical problem may this represent?
Potential data manipulation or falsification, particularly if the data were removed without a scientifically justified reason.
What is one warning sign of a predatory journal?
Unclear peer-review processes, misleading editorial information or aggressive publication solicitations.
What temperature scale must be used in Charles' Law calculations?
Kelvin.
Why is peer review not a guarantee that scientific research is correct?
Peer review can identify weaknesses but reviewers can miss errors, and scientific understanding can change as new evidence emerges.
Why does increasing temperature usually increase reaction rate?
Particles have more kinetic energy, causing more frequent and energetic collisions, increasing the number of successful collisions.
What is the halo effect?
A cognitive bias where a positive impression of one characteristic influences judgement of other characteristics.
What principle did Eratosthenes use to estimate Earth's circumference?
Differences in shadow angles at different locations, combined with the distance between those locations.
What lesson can be learned from the HRT example?
Scientific conclusions can change when stronger evidence and better-designed studies become available.
What are some potential benefits of genetic modification?
Improved crops, production of medicines, disease research and potentially improved agricultural characteristics.
How can reliability be improved?
Repeat trials, increase sample size and use consistent procedures.
According to Charles' Law, what happens to gas volume when temperature increases?
Gas volume increases, provided pressure remains constant.
What is biopiracy?
The unauthorised use or commercial exploitation of biological resources or traditional knowledge.
Why might scientists repeat an investigation conducted by another researcher?
To test reliability and reproducibility and determine whether the findings can be independently supported.
What is reliability?
The consistency or repeatability of results.
Why is consent important when researching Indigenous knowledge?
Communities should have an appropriate role in deciding how their knowledge is accessed, used and shared.
What does it mean to test a scientific claim?
To collect and analyse evidence to determine whether the evidence supports or contradicts the claim.
How can science influence economics?
Scientific discoveries can create new technologies, industries, jobs and economic opportunities.
A study finds that students who eat breakfast achieve higher marks. Can the researcher conclude breakfast causes higher marks?
No. The variables are correlated, but other factors such as sleep, socioeconomic factors or study habits could contribute.
Why were Priestley's experiments important?
They contributed to the development of understanding about oxygen, combustion and photosynthesis.
Give one advantage of digital data collection.
It can provide rapid, precise, automated and easily stored measurements.
What did Percy Spencer discover?
That microwaves could heat food, leading to the development of the microwave oven.
Why is damming rivers a science-and-society issue?
Dams can provide electricity, water storage and flood management but can also alter ecosystems, sediment movement and communities.
What was an important observation made by Percy Spencer?
A food item near microwave-producing equipment became heated.
Why does a double-blind placebo-controlled trial generally provide stronger evidence than testimonials?
It reduces placebo effects and participant/researcher bias and allows comparison with a control group under controlled conditions.
How has technology improved scientific investigations?
It allows scientists to collect data more rapidly, accurately and continuously and to investigate phenomena that were previously difficult to measure.
What is the dependent variable?
The variable measured or observed in response to the independent variable.
Why is sample size important?
Larger and appropriate samples can reduce the influence of random variation and improve confidence in conclusions.
What is a control group?
A group used for comparison that does not receive the experimental treatment or receives the standard condition.
Why can the Hawthorne effect affect an investigation?
Participants may behave differently from how they normally would, influencing the results.
Why is equitable access to scientific technologies important?
Scientific advances may provide major benefits, but unequal access can increase health and social inequalities.
Why are control variables important?
They help ensure that changes in the dependent variable are caused by the independent variable.
Why is peer review important in science?
It helps identify errors, weaknesses and unsupported claims before research is accepted or published.
Why should Indigenous knowledge be treated respectfully in scientific research?
It represents knowledge developed through generations and may have cultural significance and ownership considerations.
A study uses only 20 people from one school to make a claim about all Australian teenagers. What limitation is present?
The sample may be too small and/or unrepresentative, creating a risk of sampling bias and limiting generalisability.
What is science and society?
The study of how scientific knowledge and technology interact with social values, decisions, culture and communities.
A researcher obtains the same result in 10 repeated trials but measures the wrong variable. Is the investigation reliable, valid or both?
Reliable but potentially invalid. The results are consistent, but the investigation may not measure what it intends to measure.
How can scientists work respectfully with Indigenous communities?
Consult appropriately, obtain permission and consent, recognise knowledge holders and ensure appropriate benefit-sharing and protection of cultural knowledge.
What is primary data?
Data collected directly by the researcher during an investigation.
What happens when the source moves away from the observer?
The observed frequency decreases and the wavelength increases.
A researcher knows which patients received the experimental treatment and unconsciously treats them differently. What type of bias could this introduce?
Researcher or observer bias.
What is bias?
A systematic influence that can distort the collection, analysis or interpretation of evidence.
What is the independent variable?
The variable deliberately changed by the researcher.
Why should conflicts of interest be disclosed?
So readers can consider possible influences when evaluating the research.
What is the Hawthorne effect?
A change in behaviour that occurs because people know they are being observed or studied.
What does "publish or perish" mean?
Researchers may face pressure to publish research regularly to maintain career progression, funding or professional status.
What is a conflict of interest?
A situation where personal, financial or professional interests could influence, or appear to influence, scientific judgement.
What is a placebo?
An inactive treatment designed to resemble the real treatment.
Give one example of secondary data.
Data obtained from a scientific journal, government database or previous study.
What is the purpose of a scientific report?
To communicate the purpose, methodology, results, analysis and conclusions of an investigation clearly and systematically.
What is one ethical consideration when building a major dam?
The potential environmental and social impacts should be considered alongside economic benefits.
Why is double-blinding useful?
It can reduce bias from participants' expectations and researchers' expectations.
How have Aboriginal and Torres Strait Islander peoples used native plants?
For food, medicine, tools, fibres, materials, ceremonies and other cultural purposes.
What should a hypothesis contain?
A testable prediction about the relationship between variables.
How can personal interests influence scientific research?
Researchers may consciously or unconsciously be influenced by their expectations, beliefs or professional interests.
What is a confounding variable?
An uncontrolled factor that may affect the dependent variable and make it difficult to determine the effect of the independent variable.
A pharmaceutical company funds research into one of its own products. What issue should be considered?
Potential conflict of interest.
How can science contribute to world health?
It contributes through disease research, vaccines, medicines, diagnostics, public health measures and health technologies.
What does ICIP stand for?
Indigenous Cultural and Intellectual Property.
What is secondary data?
Data collected by someone else and obtained from existing sources.
What is genetic modification?
The deliberate alteration of an organism's genetic material using biotechnology.
Why should a claim be testable?
A scientific claim needs to be capable of being investigated using evidence.
What is the significance of Eratosthenes' investigation?
It demonstrated how mathematical reasoning and observations can be used to investigate something that cannot easily be measured directly.
What is a controlled variable?
A factor kept constant so it does not influence the results.
A media article says, "Scientists prove chocolate causes happiness", but the original study only found a correlation. What is wrong?
The media article has incorrectly interpreted correlation as causation.
Explain why scientific conclusions can change over time without meaning that science has "failed".
Science is evidence-based and self-correcting. As improved methods, technologies and larger or better-controlled studies produce new evidence, scientific explan
Why is peer review beneficial?
It provides independent scrutiny of research methods, evidence, analysis and conclusions.
What is an appropriate response to a sensational scientific claim online?
Check the original evidence, research methods, source credibility and whether independent research supports the claim.
What is peer assessment?
Evaluation or feedback provided by people with relevant knowledge or expertise.
Why must pressure be controlled in a Charles' Law investigation?
Pressure affects gas volume, so changing pressure would confound the investigation.
What is the scientific method?
A systematic process involving observation, questioning, hypothesis formation, investigation, data collection, analysis and conclusion.
Why is vaccination a science-and-society issue?
Decisions about vaccination involve scientific evidence as well as public trust, communication, ethics, policy and access.
What is the Doppler effect?
The apparent change in frequency of a wave caused by relative motion between the source and observer.
Why should repeated trials be conducted?
To identify variation and increase confidence that the results are reliable.
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