Inglês para Pesquisa Acadêmica: Vocabulário e Frases Essenciais

"research design"

The overall strategy and structure that a researcher chooses to integrate the different components of a study

"A mixed-methods research design was selected to capture both quantitative trends and qualitative insights."

"hypothesis"

A testable prediction or proposed explanation for an observed phenomenon, formulated before data collection

"The researchers formulated a hypothesis stating that increased sleep duration would improve cognitive performance."

"variable"

Any characteristic, number, or quantity that can be measured or counted in a study; can be independent, dependent, or confounding

"Age was treated as a confounding variable and controlled for in the regression analysis."

"sample size"

The number of participants or observations included in a study, which affects statistical power and generalisability

"A sample size of 200 participants was calculated to achieve 80% statistical power at a significance level of 0.05."

"longitudinal study"

A research design that follows the same subjects over an extended period of time to observe changes

"The longitudinal study tracked student achievement over five years to identify developmental patterns."

"control group"

A group in an experiment that does not receive the experimental treatment and serves as a baseline for comparison

"The control group received a placebo, while the experimental group received the active medication."

"triangulation"

The use of multiple methods, data sources, or theories to strengthen the validity of research findings

"Triangulation was achieved by combining survey data, interviews, and observational field notes."

"operationalisation"

The process of defining how an abstract concept will be measured or observed in a study

"Wellbeing was operationalised using a validated 14-item psychological scale."

"seminal work"

A foundational or highly influential publication that established key ideas in a field

"Vygotsky's seminal work on the zone of proximal development remains central to educational theory."

"systematic review"

A rigorous, structured synthesis of all available evidence on a specific research question, following explicit criteria

"A systematic review of 42 randomised controlled trials was conducted to evaluate the intervention's effectiveness."

"meta-analysis"

A statistical technique that combines results from multiple studies to produce an overall estimate of effect

"The meta-analysis pooled data from 18 studies and found a moderate effect size (d = 0.54)."

"citation"

A reference to a previously published work used to support, credit, or engage with existing scholarship

"Proper citation ensures academic integrity and allows readers to trace the origins of ideas."

"grey literature"

Research reports, government documents, and other materials produced outside traditional academic publishing channels

"The review also included grey literature such as WHO technical reports and policy documents."

"theoretical framework"

A structure of concepts and theories that frames and guides a research study

"The study used Bourdieu's theoretical framework of cultural capital to interpret the findings."

"gap in the literature"

An area of a field that has not yet been adequately studied or where existing research is insufficient

"There remains a significant gap in the literature regarding long-term outcomes for this patient population."

"bibliometric analysis"

A quantitative analysis of publications, citations, and journals to map trends in a research field

"A bibliometric analysis revealed an exponential rise in publications on this topic after 2015."

"qualitative data"

Non-numerical information such as text, images, or spoken words that captures meanings, experiences, and perspectives

"Qualitative data collected through semi-structured interviews revealed nuanced participant attitudes."

"statistical significance"

A measure indicating that an observed result is unlikely to have occurred by chance, typically expressed as a p-value below 0.05

"The difference between the two groups was statistically significant (p < 0.001)."

"regression analysis"

A set of statistical methods used to estimate relationships between variables and predict outcomes

"Multiple regression analysis identified income and education level as the strongest predictors of health outcomes."

"coding"

In qualitative research, the process of labelling segments of data with categories to identify patterns and themes

"Two independent researchers coded the transcripts, achieving an inter-rater reliability of 0.82."

"content analysis"

A research method used to systematically categorise and quantify the presence of themes in textual or visual data

"Content analysis of 300 newspaper articles revealed a shift in framing from 2010 to 2020."

"effect size"

A quantitative measure of the practical significance or magnitude of a research finding

"The intervention produced a large effect size (Cohen's d = 0.80), indicating clinically meaningful improvement."

"outlier"

A data point that differs significantly from other observations in a dataset

"The three outliers were excluded from the analysis after inspection revealed data entry errors."

"thematic analysis"

A qualitative method for identifying, analysing, and reporting patterns or themes within data

"Thematic analysis of the interview data generated six overarching themes related to student motivation."

"abstract"

A concise summary of a research paper that outlines the purpose, methods, results, and conclusions

"The abstract must not exceed 250 words and should clearly state the research question and main findings."

"hedging language"

Cautious, tentative expressions used in academic writing to indicate uncertainty or limit the scope of claims

"The authors used hedging language, writing "the results suggest" rather than making definitive assertions."

"peer review"

The evaluation of a submitted manuscript by independent experts in the field before publication

"The paper underwent a double-blind peer review process before being accepted by the journal."

"paraphrasing"

Restating someone else's ideas in your own words while maintaining the original meaning and citing the source

"Students must practise paraphrasing to avoid plagiarism while still engaging with scholarly sources."

"argument"

A reasoned, evidence-based claim that forms the central position of an academic text

"The paper's central argument is that current policy fails to address structural inequalities in education."

"methodology section"

The part of a research paper that describes how the study was conducted, including design, participants, and procedures

"The methodology section must be detailed enough to allow replication of the study by other researchers."

"discussion section"

The part of a research paper where the author interprets results, relates them to prior literature, and acknowledges limitations

"In the discussion section, the authors linked their findings to the theoretical framework outlined earlier."

"academic register"

The formal, precise, and objective style of language expected in scholarly writing

"First-person emotional language was replaced with academic register appropriate for a peer-reviewed journal."

"informed consent"

A process by which a participant voluntarily agrees to take part in a study after being fully informed of the risks and procedures

"Written informed consent was obtained from all participants prior to data collection."

"ethics committee"

A body that reviews research proposals to ensure they meet ethical standards and protect participants' rights

"The study protocol was reviewed and approved by the university ethics committee before recruitment began."

"anonymisation"

The removal or modification of identifying information from data so that participants cannot be identified

"All participant names were replaced with codes to ensure full anonymisation of the dataset."

"conflict of interest"

A situation in which a researcher's financial or personal interests could improperly influence their work

"The authors declared no conflict of interest in relation to the pharmaceutical company that funded the trial."

"plagiarism"

The act of presenting someone else's ideas or work as your own without proper attribution

"The university uses plagiarism detection software to check all submitted theses and dissertations."

"data fabrication"

The unethical practice of inventing or making up data that was not actually collected

"The researcher was dismissed after an investigation confirmed data fabrication in multiple published papers."

"voluntary participation"

The principle that individuals must freely choose to participate in a study without coercion or undue pressure

"Voluntary participation was emphasised in the recruitment materials, and withdrawal was permitted at any stage."

"research integrity"

The commitment to conducting research honestly, transparently, and in accordance with accepted ethical standards

"The institution's research integrity policy covers authorship, data management, and disclosure obligations."

"impact factor"

A metric reflecting the average number of citations articles in a journal receive, used to measure a journal's influence

"The paper was submitted to a journal with an impact factor above 5.0 to maximise its visibility."

"open access"

A publishing model in which research outputs are made freely available online to any reader without subscription fees

"The funder required that all outputs be published open access within six months of acceptance."

"grant proposal"

A formal written application submitted to a funding body requesting financial support for a research project

"The team spent three months preparing the grant proposal before the submission deadline."

"principal investigator"

The lead researcher responsible for the design, conduct, and reporting of a funded research project

"As principal investigator, she was accountable for both the scientific integrity and the budget management of the project."

"preprint"

A version of a research paper that is shared publicly before it has undergone formal peer review

"The preprint was posted on bioRxiv to share findings with the community while the journal review was ongoing."

"citation index"

A database that tracks how many times academic papers have been cited by other publications

"Her h-index of 22 was calculated using the Scopus citation index."

"postdoctoral researcher"

A researcher who has completed their doctorate and is undertaking further training, typically on a fixed-term contract

"She secured a two-year postdoctoral researcher position at a leading European university."

"bibliographic database"

A searchable electronic resource that indexes academic publications, such as PubMed, Scopus, or Web of Science

"The literature search was conducted across three bibliographic databases using predefined search terms."