Research Design and Methods

Definition An in-depth study of a single case or a small group. Example A researcher wants to st...

Definition An outside influence that affects the dependent and independent variables, potentially...

Definition An abstract concept used in research (e.g., intelligence, stress). Example A research...

Definition A statistical measure that describes the extent to which two variables are related. E...

Definition A study that analyzes data from a population at a single point in time. Example A res...

Definition The variable that is measured in a study to see the effect of the independent variable...

Definition Descriptive statistics are methods used to summarize and describe the main features of...

Definition Effect size is a quantifiable measure of the strength of a relationship between two va...

Definition A research method that involves manipulating one variable to determine its effect on a...

Definition Generalizability, in the context of a research study, refers to the extent to which th...

Definition A testable prediction about the relationship between two or more variables. Example A...

Definition A testable prediction about the relationship between two or more variables. Example A...

Definition The variable that is manipulated to observe its effect on the dependent variable. Exa...

Definition Inferential statistics is a branch of statistics that uses data from a sample to make ...

Definition Ensuring participants are fully aware of the study and voluntarily agree to participat...

Definition A committee that reviews research proposals to ensure ethical standards are met. Exam...

Definition A summary of existing research related to a specific topic. Example A researcher want...

Definition Research that involves repeated observations of the same variables over time. Example...

Definition The process of assigning numbers or labels to phenomena according to specific rules. ...

Definition Mixed-methods research is an approach to research that combines both quantitative (num...

Definition A statement that there is no effect or no relationship between variables. Example A r...

Definition Research in which the investigator observes and records behavior without manipulating ...

Definition When the researcher's expectations influence the data. Example In a 1963 study conduc...

Definition A precise explanation of how a concept will be measured in a study. Example A researc...

Definition The P-value is a probability. Specifically, it's the probability of observing results ...

Definition The entire group of individuals relevant to a particular research question. Example A...

Definition Research involving non-numerical data, often used to understand concepts or experience...

Definition Research involving numerical data and statistical analysis. Example A researcher want...

Definition A quasi-experiment is a type of research study that looks like a true experiment, but ...

Definition The consistency of a measure or test over time or across different observers. Example...

Definition Replication refers to the process of repeating an experiment or study under similar co...

Definition The issue or topic that a researcher seeks to address. Example A researcher is review...

Defintion A question that guides the focus of a research study. Example A researcher has previou...

Definition A subset of a population selected for study. Example A researcher is interested in vo...

Definition When the sample is not representative of the population. Example A researcher wishes ...

Definition Scales of measurement refer to the ways in which variables are defined and quantified ...

Definition When participants give answers they think are socially acceptable. Example In a study...

Definition A method of data collection using questionnaires or interviews to gather information f...

Definition A theory in research is a systematically organized set of concepts, definitions, and p...

Definition The degree to which a test or study measures what it claims to measure. Example  A qu...