2025/2026 Actual Complete Real Exam Questions And
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manipulation - ANSWER-act of having different patients
receive different
treatments
independent variable - ANSWER-variable that is manipulated;
variable that is
the
cause
dependent varibale - ANSWER-variable that is the effect;
measured after
treatment is
applied
controlled variable - ANSWER-variable that remains unchanged
throughout the
experiement
extraneous variable - ANSWER-a variable that the
researcher is not
intentionally studying that may influence the
dependent variable
, confounding variable - ANSWER-an extraneous variable
that can explain
changes in the dependent variable instead of the
independent variable
Qualitative variables can be either... - ANSWER-nominal or
ordinal
Quantitative variables can be either... - ANSWER-interval or
ratio
nominal (category) scale - ANSWER-means "names";
provides categorical
information; values are not
ordered
Examples of nominal scale - ANSWER-blood types,
college major, room
number
ordinal (category + order) scale - ANSWER-means "ordering";
provides information about ranking by size or measure; does
not provide information about magnitude of difference between
values
Examples of ordinal scale - ANSWER-numbers' placement in a
marathon, shirt
sizes