Lecture on Hypothesis Testing & Research Process

These flashcards cover key vocabulary and concepts related to hypothesis testing and the research process as outlined in the lecture notes.

Hypothesis

A prediction that can be expressed as a relationship between two variables.

Null Hypothesis (H0)

A statistical hypothesis asserting that no special relationship exists between the variables.

Alternative Hypothesis (H1)

A statistical hypothesis proposing that a relationship exists between the variables.

Statistical Hypothesis

Suggestions about the relationship between variables that can be tested through experimentation.

Reliability

The degree to which an experiment yields consistent results over time.

Validity

The extent to which a study accurately reflects or assesses the specific concept it claims to measure.

Sensitivity

The ability of a measurement to detect differences relevant to the research question.

Objectivity

The quality of being unbiased and objective in measurement.

Research Process

The systematic sequence of steps taken to conduct an experiment and obtain knowledge.

Statistical error

A deviation caused by randomness that can result in a false rejection (Type I) or false acceptance (Type II) of a hypothesis.