EXAM 2026 COMPLETE QUESTIONS
ANSWERS PREMIUM STUDY GUIDE
◉ random sampling.
Answer: a method of poll selection that gives each person in the
population the same chance of being selected
◉ Naturalistic Observation.
Answer: observing and recording behavior in naturally occurring
situations without trying to manipulate and control the situation
◉ Correlation.
Answer: a measure of the extent to which two factors vary together,
and thus of how well either factor predicts the other
◉ Correlation Coefficient (r).
Answer: a statistical index of the relationship between things (from -
1 to +1)
◉ Scatterplot.
, Answer: a graphed cluster of dots, each of which represents the
values of two variables; the slope of the points suggests the direction
of the relationship between the two variables (the amount of scatter
suggests the strength of the correlation)
◉ third-factor variable.
Answer: variable that causes a relationship between two other
variables
◉ Experiment.
Answer: a research method in which an investigator manipulates
one or more factors (independent variables) to observe the effect on
some behavior or mental process (the dependent variable); by
random assignment of participants, the experimenter aims to
control other relevant factors
◉ Random Assignment.
Answer: assigning participants to experimental and control groups
by chance, thus minimizing preexisting differences between those
assigned to the different groups
◉ Double-Blind Procedure.
Answer: an experimental procedure in which both the research
participants and the research staff are ignorant (blind) about