Interobserver agreement is assessed with nominal or ordinal variables by calculating
a. percentage of agreement
b. correlation coefficient
c. t-test
d. coefficient alpha
Experimental research, as opposed to nonexperimental research, allows us to make statements about cause-and-effect relationships. Why is this so?
a. Experimental research involves studying only how two variables covary.
b. Experimental research uses statistical analysis.
c. In experimental research, we can observe the effects of manipulating variables under controlled
conditions.
d. Experimental research uses objective observations.
Which of the following is NOT a limitation when using existing statistics?
A) timeliness of the input B) reliability
C) validity D) missing data
The publisher of the SAT can assess this type of reliability when individuals take the SAT more than one time with different versions of the SAT being given each time. Which type of reliability can be assessed?
a. equivalent forms reliability
b. internal consistency reliability
c. Cronbach's reliability
d. interrater reliability
What does it mean to say that an observation is objective?
a. the observation is empirical
b. it is done by professional
c. the observation has an intuitive basis
d. it is unaffected by the observer's personal biases
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