PSY 3375: Sleep - Unit 2 Questions With Complete Solutions
Subjective and Objective Measurement of Sleep 1
Sleep questionnnaires don't just measure sleep. They measure
perveptions. complains, and more
Subjective and Objective Measurement of Sleep 2
Fitbits and apps cannot tell if you're asleep (ver well), but
wristband actigraphy can
Subjective and Objective Measurement of Sleep 3
Polysomnography is the gold standard (but that does not mean it
is always preferred)
Evaluate statistics: When bars are overlapping
NOT SIGNIFICANT
Evaluate statistics: If there is a space between two error bars
Statistically significant and you can interpret
Evaluate statistics: p<0.05
Statistically statistic
Evaluate statistics: Something can be statistically significant but
not meaningful
Need to look at effect sizes
,Evaluate statistics: Effect sizes - Cohen's d - Large
d = 08 or above
Evaluate statistics: Effect sizes - Cohen's d - Medium
d = 0.5; want 0.5 or above to be significant
Evaluate statistics: Effect sizes - Cohen's d - Small
d = 0.2
Evaluate statistics: Correlation Effect Sizes - Large
r = 0.5
Evaluate statistics: Correlation Effect Sizes - Moderate
r = 0.3; want 0.3 or above to be significant
Evaluate statistics: Correlation Effect Sizes - Small
r = 0.1
Evaluate statistics: Odds Ratio - OR = 1.0
No change
Evaluate statistics: Odds Ratio - OR = 1.5
50% greater odds
Evaluate statistics: Odds Ratio - OR = 2.0
double odds
Evaluate statistics: Odds Ratio - OR = 0.5
, 50% lower odds
What does PSQI stand for?
Pittsburg Sleep Quality Index
What does PSQI assess?
different facets of your sleep quality
What is inaccurate about the PSQI?
Sleep onset latency (SOL)
What does a global PSQI above 5 indicate?
poor sleep quality
What percentage of college students reach PSQI clinical levels
of poor sleep?
60%
What does the KSS stand for?
Karolinska Sleepiness Scale
What does the KSS measure?
alertness at that moment in time (how sleepy you are in this very
moment)
What does ESS stand for?
Epworth Sleepiness Scale
What does ESS measure?
Subjective and Objective Measurement of Sleep 1
Sleep questionnnaires don't just measure sleep. They measure
perveptions. complains, and more
Subjective and Objective Measurement of Sleep 2
Fitbits and apps cannot tell if you're asleep (ver well), but
wristband actigraphy can
Subjective and Objective Measurement of Sleep 3
Polysomnography is the gold standard (but that does not mean it
is always preferred)
Evaluate statistics: When bars are overlapping
NOT SIGNIFICANT
Evaluate statistics: If there is a space between two error bars
Statistically significant and you can interpret
Evaluate statistics: p<0.05
Statistically statistic
Evaluate statistics: Something can be statistically significant but
not meaningful
Need to look at effect sizes
,Evaluate statistics: Effect sizes - Cohen's d - Large
d = 08 or above
Evaluate statistics: Effect sizes - Cohen's d - Medium
d = 0.5; want 0.5 or above to be significant
Evaluate statistics: Effect sizes - Cohen's d - Small
d = 0.2
Evaluate statistics: Correlation Effect Sizes - Large
r = 0.5
Evaluate statistics: Correlation Effect Sizes - Moderate
r = 0.3; want 0.3 or above to be significant
Evaluate statistics: Correlation Effect Sizes - Small
r = 0.1
Evaluate statistics: Odds Ratio - OR = 1.0
No change
Evaluate statistics: Odds Ratio - OR = 1.5
50% greater odds
Evaluate statistics: Odds Ratio - OR = 2.0
double odds
Evaluate statistics: Odds Ratio - OR = 0.5
, 50% lower odds
What does PSQI stand for?
Pittsburg Sleep Quality Index
What does PSQI assess?
different facets of your sleep quality
What is inaccurate about the PSQI?
Sleep onset latency (SOL)
What does a global PSQI above 5 indicate?
poor sleep quality
What percentage of college students reach PSQI clinical levels
of poor sleep?
60%
What does the KSS stand for?
Karolinska Sleepiness Scale
What does the KSS measure?
alertness at that moment in time (how sleepy you are in this very
moment)
What does ESS stand for?
Epworth Sleepiness Scale
What does ESS measure?
