| score_psqi_4 | R Documentation | 
Score PSQI item 4
score_psqi_4(psqi_4, return_value = "score")
psqi_4 | 
 duration in hours. May be in the form 'H:M' or as a float like '6.5'.  | 
return_value | 
 'score' returns the corresponding item score. 'hours' returns numeric number of hours.  | 
score or number of hours.
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