Paired Differences | t | df | Sig. (2-tailed) | ||||||
---|---|---|---|---|---|---|---|---|---|
Mean | Std. Deviation | Std. Error Mean | 95% Confidence Interval of the Difference | ||||||
Lower | Upper | ||||||||
Pair 1 | Pre i + 1 – Post i + 1 | −3.500 | 1.31789 | .29469 | −4.11679 | −2.88321 | −11.877 | 19 | .000 |
Pair 2 | Pre i-1 – Post i-1 | −1.000 | 1.37649 | .30779 | −1.64422 | −.35578 | −3.249 | 19 | .004 |