Multiple Choice
In a study comparing class size to mathematics achievement, the unit of analysis is:
A) the individual student
B) the class
C) the teacher
D) none of the above
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Which of the following statements is correct?<br>A)
Q3: Gain scores can be obtained by subtracting
Q4: Scatterplots are recommended in addition to correlation
Q5: Matching<br>-Straight-line relationship<br>A) delta<br>B) Pearson r<br>C) eta.<br>D) IQ
Q6: Most researchers consider that any delta of
Q7: Matching<br>-Effect size<br>A) delta<br>B) Pearson r<br>C) eta.<br>D) IQ
Q8: If eta and r are in substantial
Q9: In a comparison group study using two
Q10: When random sampling was not used, probabilities
Q11: Confidence intervals are recommended rather than significance