# Statistical Methods in Developmental Linguistics > Statistical approaches and analysis techniques used in child language development research - **Canonical URL:** https://flashcards.world/flashcards/sets/7e2710b6-1da3-4edd-bc3b-bfdd368213e8/ - **Markdown URL:** https://flashcards.world/flashcards/sets/7e2710b6-1da3-4edd-bc3b-bfdd368213e8.md - **Level:** advanced - **Languages:** en → en - **Total Cards:** 51 ## Flashcards (51 Cards) | # | Front (Term / Prompt) | Back (Definition / Answer) | Example | Multiple-Choice Options | | :--- | :--- | :--- | :--- | :--- | | 1 | What is the importance of sample size in research? | Sample size affects the reliability and validity of research findings; larger samples generally provide more accurate estimates of population parameters. | | | | 2 | What is a longitudinal design? | A longitudinal design involves repeated observations of the same variables over time, allowing researchers to track changes and developments. | | | | 3 | What is a chi-square test? | A chi-square test is a statistical test used to determine if there is a significant association between categorical variables. | | | | 4 | What is a mixed-methods approach? | A mixed-methods approach combines qualitative and quantitative research methods to provide a more comprehensive understanding of a research question. | | | | 5 | What is correlation in statistics? | Correlation is a statistical measure that describes the extent to which two variables change together, indicating the strength and direction of their relationship. | | | | 6 | What is a variable in research? | A variable is any characteristic, number, or quantity that can be measured or counted and can change among subjects. | | | | 7 | What is a research design? | A research design is a structured plan that outlines how a study will be conducted, including methods for data collection and analysis. | | | | 8 | What is the role of theory in statistical research? | Theory provides a framework for understanding phenomena, guiding research questions, hypotheses, and the interpretation of results. | | | | 9 | What is the significance of reproducibility in research? | Reproducibility ensures that research findings can be consistently replicated under the same conditions, validating the reliability of the results. | | | | 10 | What is the importance of peer review in research? | Peer review is crucial for ensuring the quality and credibility of research, as it involves evaluation by experts in the field before publication. | | | | 11 | What is a box plot? | A box plot is a graphical representation of data that shows the median, quartiles, and potential outliers, providing a summary of the distribution. | | | | 12 | What is data visualization? | Data visualization is the graphical representation of information and data, using visual elements like charts and graphs to communicate findings effectively. | | | | 13 | What is effect size? | Effect size is a quantitative measure of the magnitude of a phenomenon, indicating the strength of the relationship between variables. | | | | 14 | What is ANOVA? | ANOVA (Analysis of Variance) is a statistical method used to compare the means of three or more groups to see if at least one group mean is different. | | | | 15 | What is a t-test? | A t-test is a statistical test used to compare the means of two groups to determine if they are significantly different from each other. | | | | 16 | What is a confounding variable? | A confounding variable is an outside influence that can affect the outcome of an experiment, potentially leading to erroneous conclusions. | | | | 17 | What is a scatter plot? | A scatter plot is a graphical representation of two variables, showing the relationship between them through points plotted on a Cartesian plane. | | | | 18 | What is a research question? | A research question is a clear, focused question that guides a study and determines what the researcher aims to investigate. | | | | 19 | What is an independent variable? | An independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable. | | | | 20 | What is the purpose of statistical methods in developmental linguistics? | Statistical methods are used to analyze data from language acquisition studies, helping researchers identify patterns, relationships, and the effectiveness of interventions. | | | | 21 | What is regression analysis? | Regression analysis is a statistical method used to determine the relationship between a dependent variable and one or more independent variables. | | | | 22 | What is a correlation coefficient? | A correlation coefficient is a numerical value between -1 and 1 that quantifies the degree of correlation between two variables. | | | | 23 | What does a positive correlation indicate? | A positive correlation indicates that as one variable increases, the other variable also tends to increase. | | | | 24 | What is a meta-analysis? | A meta-analysis is a statistical technique that combines the results of multiple studies to identify overall trends and effects. | | | | 25 | What is a cohort study? | A cohort study follows a group of individuals who share a common characteristic over time to observe outcomes related to that characteristic. | | | | 26 | What is a hypothesis in the context of statistical analysis? | A hypothesis is a testable statement predicting the relationship between variables in a study. | | | | 27 | What is developmental linguistics? | Developmental linguistics is the study of how children acquire language and the processes involved in language development. | | | | 28 | What is a longitudinal analysis? | Longitudinal analysis examines data collected from the same subjects over time to identify trends and changes in behavior or language development. | | | | 29 | What is data coding? | Data coding is the process of transforming qualitative data into a numerical format for analysis. | | | | 30 | What is stratified sampling? | Stratified sampling involves dividing the population into subgroups (strata) and randomly sampling from each stratum to ensure representation. | | | | 31 | What is a cross-sectional study? | A cross-sectional study analyzes data from a population at a specific point in time, providing a snapshot of the variables of interest. | | | | 32 | What is a dependent variable? | A dependent variable is the outcome that researchers measure to see if it is affected by changes in the independent variable. | | | | 33 | What is the role of software in statistical analysis? | Software aids in performing complex calculations, visualizing data, and conducting statistical tests efficiently and accurately. | | | | 34 | What is a control group? | A control group is a group in an experiment that does not receive the treatment or intervention, used as a benchmark to measure the effects of the treatment. | | | | 35 | What is qualitative data? | Qualitative data is non-numerical information that describes qualities or characteristics, often collected through interviews or open-ended questions. | | | | 36 | What does a negative correlation indicate? | A negative correlation indicates that as one variable increases, the other variable tends to decrease. | | | | 37 | What is the difference between descriptive and inferential statistics? | Descriptive statistics summarize data (e.g., mean, median), while inferential statistics make predictions or inferences about a population based on sample data. | | | | 38 | What is quantitative data? | Quantitative data is numerical information that can be measured and analyzed statistically, often collected through structured surveys or experiments. | | | | 39 | What is a population in statistical research? | A population is the entire group of individuals or instances about whom researchers want to draw conclusions. | | | | 40 | What is a sample in research? | A sample is a subset of a population selected for analysis to draw conclusions about the entire population. | | | | 41 | What is the role of ethics in statistical research? | Ethics in statistical research ensures that studies are conducted responsibly, protecting participants' rights and ensuring the integrity of data. | | | | 42 | What is the difference between a theory and a hypothesis? | A theory is a well-substantiated explanation of an aspect of the natural world, while a hypothesis is a specific, testable prediction derived from a theory. | | | | 43 | What is a p-value? | A p-value is a statistical measure that helps determine the significance of results in hypothesis testing, indicating the probability of obtaining the observed results by chance. | | | | 44 | What is the significance of the normal distribution in statistics? | The normal distribution is important because many statistical tests assume that data follows this distribution, allowing for valid inferences. | | | | 45 | What is a random sample? | A random sample is a subset of a population selected in such a way that every individual has an equal chance of being chosen. | | | | 46 | What is statistical significance? | Statistical significance indicates that the results observed in a study are unlikely to have occurred by chance, typically assessed using a p-value threshold (e.g., p < 0.05). | | | | 47 | What is a longitudinal study? | A longitudinal study is a research design that involves repeated observations of the same variables over long periods. | | | | 48 | What is a case-control study? | A case-control study compares individuals with a specific condition (cases) to those without it (controls) to identify potential causes or risk factors. | | | | 49 | What is a literature review? | A literature review is a comprehensive survey of existing research on a specific topic, identifying gaps and informing future research directions. | | | | 50 | What is a confidence interval? | A confidence interval is a range of values that is likely to contain the true population parameter with a specified level of confidence (e.g., 95%). | | | | 51 | What is a survey in research? | A survey is a research method used to collect data from participants through questionnaires or interviews to gather information on specific topics. | | | --- Study this deck interactively with FSRS-6 spaced repetition, audio review, and multiple-choice mode at [Flashcards World](https://flashcards.world/flashcards/sets/7e2710b6-1da3-4edd-bc3b-bfdd368213e8/).