Accuracy
A description of how close a measurement is to the true value of the quantity measured.
Conclusion
A summary based on evidence or facts
data table
an arrangement of data in which each row represents a case and each column represents a variable
graph
to write
data
Facts and statistics collected together for reference or analysis
Reliability
the extent to which a test yields consistent results, as assessed by the consistency of scores on two halves of the test, on alternate forms of the test, or on retesting
trial
The court process to determine whether someone committed a criminal act
experiment
A research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process
Scientific Method
A series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions.
Observation
Information obtained through the senses.
dependent variable
The outcome factor; the variable that may change in response to manipulations of the independent variable.
Hypothesis
A testable prediction, often implied by a theory
Validity
the extent to which a test measures or predicts what it is supposed to