Exam (elaborations)
Psy 302 Final Exam Questions And Answers Latest Update
- Course
- PSY 302
- Institution
- University Of Arizona
Psy 302 Final Exam Questions And Answers Latest Update
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Solution 2024/2025Pepper
Psy 302 Final Exam Questions And Answers
Latest Update
Power ANS✔✔ Ability to correctly reject null (identify an effect if there is
one).
Bigger effect = ____ power. ANS✔✔ More
Bigger sample = ____ power. ANS✔✔ More
Lower alpha = ____ power. ANS✔✔ Lower
If calculated value is GREATER than critical value... ANS✔✔ - Reject null
- There is a significant diff.
- p < .05
If calculated value is LESS than critical value... ANS✔✔ - Fail to reject null
- There is NO significant diff.
- p > .05
3 questions to ask about variables when determining the appropriate test to
use? ANS✔✔ 1. How many IVs do I have?
--> one, two, or more than two?
, Solution 2024/2025
Pepper
2. What kind of variables are they?
--> categorical/nominal or continuous?
3. Are they matched/repeated measures or independent?
What does a correlation (r) tell us? ANS✔✔ The strength & direction of a
relationship between X & Y.
Coefficient of Determination (r squared) ANS✔✔ Assessment of the amount
of variability in one variable that can be determined by its relationship w/
another variable.
--> Tells us the gain in predictive accuracy that we get from using the
relationship between two variables as opposed to just guessing.
Correlation is used in... ANS✔✔ OBSERVATIONAL research.
Correlation has no... ANS✔✔ Independent or dependent variables.
In correlation analyses, ____ is used to describe relationship between X & Y.
ANS✔✔ Pearson's r
Pearson's r ANS✔✔ - Numerical value used to describe the relationship
between X & Y.
- Describes the direction, strength, & shape of the relationship.
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