Group Statistics INSTRUCT N Mean Std. Deviation Std. Error Mean FINAL lecture 10
ID: 3378756 • Letter: G
Question
Group Statistics
INSTRUCT
N
Mean
Std. Deviation
Std. Error Mean
FINAL
lecture
10
80.90
10.365
3.278
discussion
10
90.80
7.162
2.265
Independent Samples Test
Levene's Test for Equality of Variances
t-test for Equality of Means
F
Sig.
t
df
Sig. (2-tailed)
Mean Difference
Std. Error Difference
95% Confidence Interval of the Difference
Lower
Upper
FINAL
Equal variances assumed
1.695
.209
-2.485
18
.023
-9.900
3.984
-18.270
-1.530
Equal variances not assumed
-2.485
15.998
.024
-9.900
3.984
-18.346
-1.454
SPSS question:
Using the the above info, conduct an independent-samples t test to determine of the instruction type (lecture vs. discussion) had an effect on the final exam scores. Write up the results APA style. In your conclusion, if the difference is significant, indicate which instruction type helped the most – were the final exam scores higher under instruction type 1 or 2?
Group Statistics
INSTRUCT
N
Mean
Std. Deviation
Std. Error Mean
FINAL
lecture
10
80.90
10.365
3.278
discussion
10
90.80
7.162
2.265
Explanation / Answer
Group Statistics INSTRUCT N Mean Std. Deviation Std. Error Mean FINAL lecture 10
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