Qualitative research is primarily exploratory and seeks to understand the underlying reasons and motivations for certain behaviors, while quantitative research is numerical and seeks to quantify data and draw statistical conclusions.
A hypothesis is a proposed explanation for a phenomenon that can be tested, while a theory is a well-established and widely accepted explanation that has been rigorously tested and supported by evidence.
Accuracy refers to how close a measurement is to the true or expected value, while precision refers to how close a series of measurements are to each other.
A control group is a group in an experiment that is not exposed to the independent variable, while an experimental group is exposed to the independent variable. The control group allows for comparison to the experimental group in order to assess the impact of the independent variable.
Primary sources are firsthand accounts or original documents, while secondary sources interpret or analyze primary sources. Primary sources are often used as evidence in research, while secondary sources provide context and analysis.