You might think there wouldn't be
a sleep difference between those groups.
Not exact matches
The researchers found no
differences in
sleep duration
between the
groups of babies at age 12 months.
When the perpetrator was in the lineup, there was essentially no
difference between the
sleep and no -
sleep groups» ability to choose the guilty man.
He says that big
differences in
sleep patterns
between evolutionary
groups can swamp relationships found within those
groups (see graph, below right).
This data point would eliminate the initial presumption that less
sleep could be determining the
differences in health effects
between the
groups.
During a baseline night in which blood was not drawn, there was no
difference in
sleep quality
between the progesterone and placebo
groups.
Furthermore, there were no
differences in
sleep quality
between the two
groups.
No
differences were found
between groups in perceived
sleep quality, length of time needed to fall asleep, and fatigue level next day.
The post hoc Tukey analysis also con - firmed the statistically significant
difference found
between the iRest ® meditation and the
sleep hygiene control
groups (p <.03, Cohen's d = 2.37).
To determine if a statistically significant
difference existed
between groups on the four parametric
sleep mea - sures after adhering to the 1 - week
sleep hygiene regimen, we used an ANOVA with a post hoc Tukey analysis.
Using the participants»
sleep journal, an ANOVA found a statistically significant
difference between all three
groups on length of time asleep, F (2, 28) = 6.343, p <.006.
Our second research question asked whether a statistically significant
difference existed
between all three intervention
groups on five
sleep measures at intervention - end: length of time needed to fall asleep, total time asleep, number of nighttime awakenings, length of nighttime awakenings, and fatigue level next day.
• No
differences were found
between the two recipient
groups in three other categories: anger, companionship and
sleep disturbance.
Data analysis for study I consisted of 3 components, ie, 1) assessment of test - retest reliability of BISQ measures, 2) evaluation of the correspondence
between BISQ measures and
sleep measures derived from actigraphic data and daily logs, and 3) assessment of
differences between clinical and control samples in BISQ measures and the ability of the instrument to distinguish
between these
groups.
MANCOVA (covarying for any
between group differences in age, gender, race, and parent occupation) and Cohen's d effect size statistic were used to investigate
differences between groups on nighttime
sleep problems.