PSYC 645 CERTIFICATION PRACTICE
PAPER 2026 SOLVED QUESTIONS
ACCURATE KEY
● What is the pearson corelation in spss? Answer: The r value
● What is the p value in spss? Answer: Sig.
● A factorial anova is used to determine what? Answer: Explore main
effects and interactions when there are two independent variables and a
dependent variable measured on the interval or ratio scale.
● Power Answer: 1 - Beta
Based on sample size and other factors, this is the statistic's ability to
correctly reject the null hypothesis
● Negatively Skewed Distribution Answer: A distribution in which most
scores pile up at the high end of the scale.
● ANOVA Answer: Compares mean values of a contributes variable for
multiple categories/groups
, ● Factorial ANOVA Answer: An analysis of variance involving two or
more independent variables or predictors
● Statistics are to samples as _______ are to populations Answer:
Parameters
● Independent Variable (IV) Answer: The experimental factor that is
manipulated; the variable whose effect is being studied.
● Dependent Variable (DV) Answer: The measurable effect, outcome, or
response in which the research is interested.
D = Data
● Sample Standard Deviation Answer: the positive square root of the
sample variance
● Priori Comparison Answer: A comparison that a researcher decides to
make before (prior to) performing an experiment or gathering data.
● Z-Score Answer: Type of score which expresses the difference of a
score from the mean in units of standard deviation
PAPER 2026 SOLVED QUESTIONS
ACCURATE KEY
● What is the pearson corelation in spss? Answer: The r value
● What is the p value in spss? Answer: Sig.
● A factorial anova is used to determine what? Answer: Explore main
effects and interactions when there are two independent variables and a
dependent variable measured on the interval or ratio scale.
● Power Answer: 1 - Beta
Based on sample size and other factors, this is the statistic's ability to
correctly reject the null hypothesis
● Negatively Skewed Distribution Answer: A distribution in which most
scores pile up at the high end of the scale.
● ANOVA Answer: Compares mean values of a contributes variable for
multiple categories/groups
, ● Factorial ANOVA Answer: An analysis of variance involving two or
more independent variables or predictors
● Statistics are to samples as _______ are to populations Answer:
Parameters
● Independent Variable (IV) Answer: The experimental factor that is
manipulated; the variable whose effect is being studied.
● Dependent Variable (DV) Answer: The measurable effect, outcome, or
response in which the research is interested.
D = Data
● Sample Standard Deviation Answer: the positive square root of the
sample variance
● Priori Comparison Answer: A comparison that a researcher decides to
make before (prior to) performing an experiment or gathering data.
● Z-Score Answer: Type of score which expresses the difference of a
score from the mean in units of standard deviation
