PSYCHOLOGY 255 EXAM 1 PRACTICE SCRIPT
2026 TESTED QUESTIONS WITH ANSWERS
◉ Falsifiability. Answer: Ability to test if a theory can be proven
wrong.
◉ Descriptive statistics. Answer: Methods for organizing and
summarizing data.
◉ Variable. Answer: Characteristic that can take on different values.
◉ Constant. Answer: Characteristic that remains unchanged in a
study.
◉ Score. Answer: Individual's value on a specific variable.
◉ Quantitative variables. Answer: Numeric values indicating
measurable quantities.
◉ Categorical variables. Answer: Values without a natural order or
ranking.
, ◉ Central tendency. Answer: Measures that summarize a set of data.
◉ Mean. Answer: Average value of a data set.
◉ Median. Answer: Middle value dividing a data set in half.
◉ Mode. Answer: Most frequently occurring value in a data set.
◉ Variance. Answer: Average of squared deviations from the mean.
◉ Standard deviation. Answer: Measure of data dispersion around
the mean.
◉ Z-score. Answer: Indicates how many SD a score is from the mean.
◉ Effect size. Answer: Magnitude of a study's result quantified.
◉ Inferential statistics. Answer: Techniques estimating population
values from sample data.
◉ Estimation. Answer: Using sample data to infer population
characteristics.
2026 TESTED QUESTIONS WITH ANSWERS
◉ Falsifiability. Answer: Ability to test if a theory can be proven
wrong.
◉ Descriptive statistics. Answer: Methods for organizing and
summarizing data.
◉ Variable. Answer: Characteristic that can take on different values.
◉ Constant. Answer: Characteristic that remains unchanged in a
study.
◉ Score. Answer: Individual's value on a specific variable.
◉ Quantitative variables. Answer: Numeric values indicating
measurable quantities.
◉ Categorical variables. Answer: Values without a natural order or
ranking.
, ◉ Central tendency. Answer: Measures that summarize a set of data.
◉ Mean. Answer: Average value of a data set.
◉ Median. Answer: Middle value dividing a data set in half.
◉ Mode. Answer: Most frequently occurring value in a data set.
◉ Variance. Answer: Average of squared deviations from the mean.
◉ Standard deviation. Answer: Measure of data dispersion around
the mean.
◉ Z-score. Answer: Indicates how many SD a score is from the mean.
◉ Effect size. Answer: Magnitude of a study's result quantified.
◉ Inferential statistics. Answer: Techniques estimating population
values from sample data.
◉ Estimation. Answer: Using sample data to infer population
characteristics.