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The filters you have selected from various query interfaces will be stored here, in the 'Filter Cart'. The database will be queried using filters added to your 'Filter Cart', when multiple filters are defined, each will be executed using 'AND' logic, so with each filter that is applied the result set gets smaller.

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Morningness–Eveningness Questionnaire



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Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
src_subject_idString20RequiredSubject ID how it's defined in lab/projectrecord_id
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired field
interview_ageIntegerRequiredAge in months at the time of the interview/test/sampling/imaging.0 :: 1260Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
genderString20RequiredSex of the subjectM;FM = Male; F = Female
meq_1IntegerRecommendedWhat time would you get up if you were entirely free to plan your day?/ Adolescent version. Imagine: School is cancelled! You can get up whenever you want to. When would you get out of bed? Between0::55= 5:00 - 6:30 AM;4= 6:30 - 7:45 AM;3= 7:45 - 9:45 AM;2= 9:45 - 11:00 AM;1= 11:00 AM - 12 NOON;0= 12 NOON - 5:00 AM
meq_2IntegerRecommendedWhat time would you go to bed if you were entirely free to plan your evening?/ Adolescent version: Your parents have decided to let you set your own bed time. What time would you pick? Between0::55= 8:00 - 9:00 PM;4= 9:00 - 10:15 PM;3= 10:15 PM - 12:30 AM;2= 12:30 - 1:45 AM;1= 1:45 - 3:00 AM;0= 3:00 AM - 8:00 PM
meq_3IntegerRecommendedIf there is a specific time at which you have to get up in the morning, to what extent do you depend on being woken up by an alarm clock?0::44= Not at all dependent;3= Slightly dependent;2= Fairly dependent;1= Very dependent
meq_4IntegerRecommendedHow easy do you find it to get up in the morning (when you are not woken up unexpectedly)?0::41= Not at all easy;2= Not very easy;3= Fairly easy;4= Very easy. Adolescent version: 1=No way; 2= Sort of; 3= Pretty easy; 4= It's a cinch!
meq_5IntegerRecommendedHow alert do you feel during the first half hour after you wake up in the morning?0::41= Not at all alert;2= Slightly alert;3= Fairly alert;4= Very alert/ Adolescent version 1=Out of it; 2=A little dazed; 3=Okay; 4=Ready to take on the world
meq_6IntegerRecommendedHow hungry do you feel during the first half-hour after you wake up in the morning?0::41= Not at all hungry;2= Slightly hungry;3= Fairly hungry;4= Very hungry
meq_7IntegerRecommendedDuring the first half-hour after you wake up in the morning, how tired do you feel?0::41= Very tired;2= Fairly tired;3= Fairly refreshed;4= Very refreshed
meq_8IntegerRecommendedIf you have no commitments the next day, what time would you go to bed compared to your usual bedtime?0::44= Seldom or never later;3= Less than one hour later;2= 1-2 hours later;1= More than two hours later
meq_9IntegerRecommendedYou have decided to engage in some physical exercise. A friend suggests that you do this for one hour twice a week and the best time for him is between 7:00 - 8:00 am. Bearing in mind nothing but your own internal "clock", how do you think you would perform?/ Adolescent version:3. Gym class is set for 7:00 in the morning. How do you think youll do0::44= Would be in good form;3= Would be in reasonable form;2= Would find it difficult;1= Would find it very difficult; Adolescent version: 4=Mybest!; 3=Okay; 2=Worse than usual; 1=Awful!
meq_10IntegerRecommendedAt what time of day do you feel you become tired as a result of need for sleep?/Adolescent version: When does your body start to tell you its time for bed (even if you ignore it)? Between0::55= 8:00 - 9:00 PM;4= 9:00 - 10:15 PM;3= 10:15 PM - 12:45 AM;2= 12:45 - 2:00 AM;1= 2:00 - 3:00 AM
meq_11IntegerRecommendedYou want to be at your peak performance for a test that you know is going to be mentally exhausting and will last for two hours. You are entirely free to plan your day. Considering only your own internal "clock", which ONE of the four testing times would you choose? / Adolescent version: The bad news: You have to take a two-hour test. The good news: You can take it when you think youll do your best. What time is that?0::44= 8:00 AM - 10:00 AM;3= 11:00 AM - 1:00 PM;2= 3:00 PM - 5:00 PM;1= 7:00 PM - 9:00 PM
meq_12IntegerRecommendedIf you got into bed at 11:00 PM, how tired would you be?0::41= Not at all tired;2= A little tired;3= Fairly tired;4= Very tired
meq_13IntegerRecommendedFor some reason you have gone to bed several hours later than usual, but there is no need to get up at any particular time the next morning. Which ONE of the following are you most likely to do?0::44= Will wake up at usual time= but will NOT fall back asleep;3= Will wake up at usual time and will doze thereafter;2= Will wake up at usual time but will fall asleep again;1= Will NOT wake up until later than usual
meq_14IntegerRecommendedOne night you have to remain awake between 4:00 - 6:00 AM in order to carry out a night watch. You have no commitments the next day. Which ONE of the alternatives will suite you best?0::41= Would NOT go to bed until watch was over;2= Would take a nap before and sleep after;3= Would take a good sleep before and nap after;4= Would sleep only before watch
meq_15IntegerRecommendedYou have to do two hours of hard physical work. You are entirely free to plan your day and considering only your own internal "clock" which ONE of the following time would you choose?0::44= 8:00 AM - 10:00 AM;3= 11:00 AM - 1:00 PM;2= 3:00 PM - 5:00 PM;1= 7:00 PM - 9:00 PM
meq_16IntegerRecommendedYou have decided to engage in hard physical exercise. A friend suggests that you do this for one hour twice a week and the best time for him is between 10:00 - 11:00 PM. Bearing in mind nothing else but your own internal "clock" how well do you think you would perform?0::41= Would be in good form;2= Would be in reasonable form;3= Would find it difficult;4= Would find it very difficult
meq_17IntegerRecommendedSuppose that you can choose your own work hours. Assume that you worked a FIVE hour day (including breaks) and that your job was interesting and paid by results). Which FIVE CONSECUTIVE HOURS would you select?0::55= 5 hours starting between 4:00 AM and 8:00 AM;4= 5 hours starting between 8:00 AM and 9:00 AM;3= 5 hours starting between 9:00 AM and 2:00 PM;2= 5 hours starting between 2:00 PM and 5:00 PM;1= 5 hours starting between 5:00 PM and 4:00 AM
meq_18IntegerRecommendedAt what time of the day do you think that you reach your "feeling best" peak?0::55= 5:00 - 8:00 AM;4= 8:00 - 10:00 AM;3= 10:00 AM - 5:00 PM;2= 5:00 - 10:00 PM;1= 10:00 PM - 5:00 AM
meq_19IntegerRecommendedOne hears about "morning" and "evening" types of people. Which ONE of these types do you consider yourself to be? / Adolescent version: When do you have the most energy to do your favorite things?0::66= Definitely a "morning" type;4= Rather more a "morning" than an "evening" type;2= Rather more an "evening" than a "morning" type;0= Definitely an "evening" type; Adolescent version: 4=Morning! I'm tired in the evening; 3=Morning more than evening; 2=Evening more than morning; 1=Evening! I am tired in the morning
visitString50RecommendedVisit nameCharacter description of each type of visitmeq_date
version_formString100RecommendedForm used/assessment name
meq_20IntegerRecommendedSay you had to get up at 6:00 am every morning: What would it be like for you?1::41= Awful!; 2 = Not so great; 3 =Okay (if I have to); 4= Fine, no problem!
meq_21IntegerRecommendedWhen you wake up in the morning how long does it take for you to be totally "with it"?1::44 = 0 to 10 minutes; 3 = 11 to 20 minutes; 2= 21 to 40 minutes; 1 = More than 40 minutes
comments_miscString4,000RecommendedMiscellaneous comments on study, interview, methodology relevant to this form data
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
  • Required: This column displays whether the element is Required for valid submissions, Recommended for valid submissions, Conditional on other elements, or Optional
  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
  • For valid elements with shared data, on the far left is a Filter button you can use to view a summary of shared data for that element and apply a query filter to your Cart based on selected value ranges

At the top of this page you can also:

  • Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns
  • Download a copy of this definition in CSV format
  • Download a blank CSV submission template prepopulated with the correct structure header rows ready to fill with subject records and upload

Please email the The NDA Help Desk with any questions.

Distribution for DataStructure: meq01 and Element:
Chart Help

Filters enable researchers to view the data shared in NDA before applying for access or for selecting specific data for download or NDA Study assignment. For those with access to NDA shared data, you may select specific values to be included by selecting an individual bar chart item or by selecting a range of values (e.g. interview_age) using the "Add Range" button. Note that not all elements have appropriately distinct values like comments and subjectkey and are not available for filtering. Additionally, item level detail is not always provided by the research community as indicated by the number of null values given.

Filters for multiple data elements within a structure are supported. Selections across multiple data structures will be supported in a future version of NDA.