EXSC 525 Quiz: Assessing and Measuring Research
Variables 2025 Liberty University
Attempt History
Attemp
Time Score
t
LATE Attempt Time:25 Score:115 out of
ST 1 minutes 120
Question 1
pts
A teacher wishes to determine the reliability of three trials on a
performance test. He uses ANOVA to obtain the reliability coefficient. This
technique is called
intraclass correlation
Question 2
pts
When a researcher states that a result is significant, this means that
the result is unlikely to be a chance occurrence
Question 3
pts
When an experimenter states that the level of significance is the .05 level,
he is setting the probability of committing which type of error?
type I error
, Question 4
pts
If the researcher fails to reject the null hypothesis when there really is a
difference, this is an example of a
type II error
Question 5
pts
When a tester divides the number of students who answered a test item
correctly by the number of students who attempted the item, the result is
called
index of difficulty
Question 6
pts
Which hypothesis is stated in the null form?
There is no difference between the vocabulary scores of average- and high-
ability students.
Question 7
pts
If a thermometer measured the temperature in an oven as 400° five days in
a row when the temperature was actually 337°, this measuring instrument
would be considered
Variables 2025 Liberty University
Attempt History
Attemp
Time Score
t
LATE Attempt Time:25 Score:115 out of
ST 1 minutes 120
Question 1
pts
A teacher wishes to determine the reliability of three trials on a
performance test. He uses ANOVA to obtain the reliability coefficient. This
technique is called
intraclass correlation
Question 2
pts
When a researcher states that a result is significant, this means that
the result is unlikely to be a chance occurrence
Question 3
pts
When an experimenter states that the level of significance is the .05 level,
he is setting the probability of committing which type of error?
type I error
, Question 4
pts
If the researcher fails to reject the null hypothesis when there really is a
difference, this is an example of a
type II error
Question 5
pts
When a tester divides the number of students who answered a test item
correctly by the number of students who attempted the item, the result is
called
index of difficulty
Question 6
pts
Which hypothesis is stated in the null form?
There is no difference between the vocabulary scores of average- and high-
ability students.
Question 7
pts
If a thermometer measured the temperature in an oven as 400° five days in
a row when the temperature was actually 337°, this measuring instrument
would be considered
