Psychology Statistics Final Exam with complete questions and
verified answers 2026.
Research Designs - ANSWER: -often looking for relationships between variables
Correlational Method - ANSWER: -coefficient; positive; negative
-2 variables related
-CORRELATION does NOT equal CAUSATION
-significance**
-measure 2 or more variables
-looks for associations
Experimental Method - ANSWER: -manipulation of IV
-measure the effect of DV
-use multiple groups
-random assignment
-allows for inferences about causality
-*confounding* variables
Non-Experimental Method - ANSWER: -compares groups that have not been
created by the experimenter
-males versus females
-smokers versus non-smokers
-cannot make inferences on cause and effect
Descriptive Statistics - ANSWER: -statistical procedures used to summarize,
organize, and simplify data.
, Inferential Statistics - ANSWER: -techniques that allow us to study samples and
then make generalizations about the populations from which they were selected.
Population: - ANSWER: -the entire group of persons or things of interest in a
particular study
-all males, all college males, all QU males
Sample: - ANSWER: -subset taken from a larger population, that is usually intended
to represent the population as a whole.
Population = Parameter - ANSWER: TRUE
Sample = Statistic - ANSWER: TRUE
Scales of Measurement - ANSWER: -Nominal
-Ordinal
-Ratio
-Interval
Nominal Scale: - ANSWER: - assignment to categories with different names
-Qualitative distinctions
-ex) Male and Female
Ordinal Scale - ANSWER: -ranked in ordered sequence
-know the direction but not magnitude
-ex) class rank (1 = highest GPA, 5 = lowest GPA)
Interval Scale - ANSWER: -no absolute zero
-distances between adjacent scores are consistent and equal (magnitude)
-IQ Test scores
verified answers 2026.
Research Designs - ANSWER: -often looking for relationships between variables
Correlational Method - ANSWER: -coefficient; positive; negative
-2 variables related
-CORRELATION does NOT equal CAUSATION
-significance**
-measure 2 or more variables
-looks for associations
Experimental Method - ANSWER: -manipulation of IV
-measure the effect of DV
-use multiple groups
-random assignment
-allows for inferences about causality
-*confounding* variables
Non-Experimental Method - ANSWER: -compares groups that have not been
created by the experimenter
-males versus females
-smokers versus non-smokers
-cannot make inferences on cause and effect
Descriptive Statistics - ANSWER: -statistical procedures used to summarize,
organize, and simplify data.
, Inferential Statistics - ANSWER: -techniques that allow us to study samples and
then make generalizations about the populations from which they were selected.
Population: - ANSWER: -the entire group of persons or things of interest in a
particular study
-all males, all college males, all QU males
Sample: - ANSWER: -subset taken from a larger population, that is usually intended
to represent the population as a whole.
Population = Parameter - ANSWER: TRUE
Sample = Statistic - ANSWER: TRUE
Scales of Measurement - ANSWER: -Nominal
-Ordinal
-Ratio
-Interval
Nominal Scale: - ANSWER: - assignment to categories with different names
-Qualitative distinctions
-ex) Male and Female
Ordinal Scale - ANSWER: -ranked in ordered sequence
-know the direction but not magnitude
-ex) class rank (1 = highest GPA, 5 = lowest GPA)
Interval Scale - ANSWER: -no absolute zero
-distances between adjacent scores are consistent and equal (magnitude)
-IQ Test scores
