PAT ADVANCED REVIEW PAPER 2026
COMPLETE ANSWERS GRADED A+
⩥ What is an experiment? Answer: A research method where a
researcher manipulates one variable to test its effect on another.
⩥ What is an independent variable? Answer: The variable the researcher
manipulates.
⩥ What is a dependent variable? Answer: The variable that is measured
to see if it changes.
⩥ What does a correlation measure? Answer: The strength and direction
of a linear relationship between two variables.
⩥ What is the range of a correlation coefficient? Answer: -1 to +1.
⩥ Does correlation prove causation? Answer: No, because it does not
show which variable causes the other.
⩥ What is a scatterplot? Answer: A graph that visually represents the
relationship between two variables.
, ⩥ What does a positive correlation look like on a scatterplot? Answer:
Points trend upward from left to right.
⩥ What does a negative correlation look like? Answer: Points trend
downward from left to right.
⩥ What is replication? Answer: Repeating a study to see if the results
can be reproduced.
⩥ What is exact replication? Answer: Repeating the study exactly as
originally conducted.
⩥ What is conceptual replication? Answer: Testing the same hypothesis
using different methods.
⩥ What is random sampling? Answer: Every person in the population
has an equal chance of being selected.
⩥ What is cluster sampling? Answer: Selecting a small group that
represents a larger population.
⩥ What is a schema? Answer: A mental framework used to organize and
interpret information.
COMPLETE ANSWERS GRADED A+
⩥ What is an experiment? Answer: A research method where a
researcher manipulates one variable to test its effect on another.
⩥ What is an independent variable? Answer: The variable the researcher
manipulates.
⩥ What is a dependent variable? Answer: The variable that is measured
to see if it changes.
⩥ What does a correlation measure? Answer: The strength and direction
of a linear relationship between two variables.
⩥ What is the range of a correlation coefficient? Answer: -1 to +1.
⩥ Does correlation prove causation? Answer: No, because it does not
show which variable causes the other.
⩥ What is a scatterplot? Answer: A graph that visually represents the
relationship between two variables.
, ⩥ What does a positive correlation look like on a scatterplot? Answer:
Points trend upward from left to right.
⩥ What does a negative correlation look like? Answer: Points trend
downward from left to right.
⩥ What is replication? Answer: Repeating a study to see if the results
can be reproduced.
⩥ What is exact replication? Answer: Repeating the study exactly as
originally conducted.
⩥ What is conceptual replication? Answer: Testing the same hypothesis
using different methods.
⩥ What is random sampling? Answer: Every person in the population
has an equal chance of being selected.
⩥ What is cluster sampling? Answer: Selecting a small group that
represents a larger population.
⩥ What is a schema? Answer: A mental framework used to organize and
interpret information.
