PSY326 Week 4 Quiz Latest 2021

Question 1 A variable which ranks people by age from youngest to oldest would be measured on

 a(n) 

nominal

 scale.

 ordinal

interval

ratio

Question 2 Brand of smartphone is a(n) 

 scale variable.

 nominal

ordinal

interval

Question 3 The Law School Admissions Test (LSAT) is given to students seeking admission to law school.  If those who score high on the LSAT ultimately have higher grades in law school, while those with lower scores have lower grades, the LSAT is said to have

concurrent validity

face validity

predictive validity

test-retest reliability

Question4 Grip strength is a common physical fitness assessment tool which is highly reliable, however research has demonstrated that it has little relationship with actual fitness levels. Which of the following best describes the use of grip strength as a measure of physical fitness?

It has high criterion validity.

It has a low Cronbach’s alpha.

It has low face validity.

Question 5 A(n)  ____________ is a specific and falsifiable statement about the relationship

 between two or more variables.

correlation

observation

operational definition

Question6 Height in inches is a(n)  __________ scale variable

nominal

ordinal

interval

ratio

Question 7 The ____________ is the statistic representing the probability that our results are due to random

  chance.

alpha level

 p-value

Tukey’s Honestly Significant Difference

Student’s t-test

Question 8 A researcher is testing out a new personality assessment to determine a participant’s personality type.  She shows that scores from her new measure are unrelated to measures of mood and cognitive ability.  She has demonstrated that her new assessment has  validity.

concurrent

criterion

 discriminate

 face

Question 9 IQ score is an example of a(n)  _________ scale variable.

nominal

ordinal

interval

ratio

Question 10        refers to the consistency of a measurement and the extent to which the measured variable is free from random errors.

effect size

reliability

stability

Validity