National Database for Autism Research
Short Name: edq
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Early Development Questionnaire

The Modified Checklist for Autism in Toddlers

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ElementName DataType Size Required ElementDescription ValueRange Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for subjects which identifies a subject in NDAR NDAR*
src_subject_id String 20 Required The site or study's subject identification
interview_date Date Required Date on which the interview/genetic test/sampling/imaging was completed Required field
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1200 Age 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
gender String 50 Required Gender M; F
regression_age Integer Recommended If your child experienced a regression before 18 months of age only rate his or her behavior up to the point of the regression. Specify age in months. 0 :: 18
rel_child_spfy String 250 Recommended If other please specify
look_social Integer Recommended My child looked at others during social interactions 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_1
repetitive_behavior Integer Recommended My child engaged in repetitive motor behavior 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_2
choice_answer Integer Recommended When given a choice between two items my child clearly let me know which one he or she wanted. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember
smile_back Integer Recommended My child smiled back at me when I smiled at him or her. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_4
child_non_interests Integer Recommended My child rarely noticed or seemed interested in new objects or toys in his or her environment. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_5
attention_book Integer Recommended My child could listen and pay attention to a book for at least 5 minutes. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_6
arms_up Integer Recommended My child put his/her arms up when he or she wanted to be picked up. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_7
part_toy Integer Recommended My child was more interested in playing with a certain part of a toy (e.g. spinning the wheels of a car) than playing with the whole toy. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_8
understandable_speech Integer Recommended My child's speech at whatever level acquired was easy to understand. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_9
brought_interested Integer Recommended My child showed or brought me things that interested him or her. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_10
routine_change Integer Recommended My child became upset if there was a minor change in his or her routine or environment. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_11
meaningful_phrases Integer Recommended My child put 2 or 3 words together into meaningful phrases. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_12
name_look Integer Recommended When I called my child¿s name he or she looked at me right away. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_13
stare_objects Integer Recommended My child stared at lights or visually inspected objects at close range for extended periods of time. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_14
baby_talk Integer Recommended Before my child used words his or her babbling or baby talk was clearly directed toward me. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_15
request_things Integer Recommended If my child wanted something he or she would point to request it. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_16
ear_cover Integer Recommended My child covered his or her ears in response to certain sounds (e.g. vacuum cleaner traffic). 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_17
follow_command Integer Recommended My child followed simple verbal instructions 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_18
point_look Integer Recommended If I pointed or looked toward something my child would look at it too. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_19
child_held Integer Recommended When held my child cuddled or molded into my body. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_20
child_push_hand Integer Recommended When my child wanted something he or she used my hand as a tool or pushed my body or arm to get help from me. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_21
initiated_game Integer Recommended My child initiated interactive games such as peek-a-boo or hide-andseek with me. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_22
lined_toys Integer Recommended My child enjoyed lining up toys or other objects. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_23
spontaneous_five_word Integer Recommended My child spontaneously used 5 or more words other than mama or dada on a daily basis. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_24
imitated_actions Integer Recommended My child imitated things I did such as clapping waving goodbye or blowing a kiss. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_25
unusual_object Integer Recommended My child was attached to an unusual object and insisted on carrying it around with him or her. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_26
understand_me Integer Recommended My child seemed to understand what I said to him or her even if he or she couldn¿t respond back verbally. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_27
play_others Integer Recommended My child preferred to play with others than to play alone. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_28
smell_texture Integer Recommended My child seemed particularly interested in the smell or texture of things. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_29
babble_speech Integer Recommended My child babbled or used word approximations to get my attention. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_30
child_point Integer Recommended If my child saw something that interested him or her he or she would point to it and then look at me to see if I was looking at it too. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_31
child_rocked Integer Recommended My child rocked in his or her crib or play pen for extended periods of time. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_32
head_shake Integer Recommended My child shook his or her head to mean No. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_33
pretend_activities Integer Recommended My child engaged in simple pretend play activities 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_34
one_toy Integer Recommended My child played with one toy or object over and over again to an unusual degree. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_35
head_nod Integer Recommended My child nodded his or her head to mean Yes. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_36
interested_children Integer Recommended My child seemed interested in other children. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_37
child_mouthed Integer Recommended My child mouthed objects to an unusual degree. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_38
like_smile Integer Recommended When my child really liked something he or she would let me know by smiling or making noises that were clearly directed toward me. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_39
hurt_self Integer Recommended My child injured him/herself deliberately (biting self or banging head). 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_40
imitated_words Integer Recommended My child imitated sounds I made or words I said after hearing them. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_41
people_preference Integer Recommended My child showed a clear preference for me over less familiar people. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_42
body_part Integer Recommended My child accurately indicated one or more body parts when asked. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_43
spontaneous_ten_word Integer Recommended My child spontaneously and regularly used 10 or more meaningful words. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally ; 3 = often ; 4 = Don't know or can't remember EDQ_44
interupt_activity Integer Recommended My child became upset if his or her activity was interrupted and would insist on starting it over again from the beginning. 0 :: 4 0 = never ; 1 = rarely ; 2 = occasionally \; 3 = often \; 4 = Don't know or can't remember EDQ_45
roll_over Integer Recommended At what age (in months) did your child first learn to roll over EDQ_RO
crawl Integer Recommended At what age (in months) did your child first learn to crawl EDQ_CL
sit_alone Integer Recommended At what age (in months) did your child first learn to sit alone unsupported EDQ_SA
single_words_use Integer Recommended At what age (in months) did your child use single words EDQ_SW
single_word_use_lt String 250 Recommended Please list a few of his/her first words EDQ_FW
speak_phrases Integer Recommended At what age (in months) did your child speak in phrases EDQ_SP
speak_phrases_lt String 250 Recommended Please list some of the first phrases your child used EDQ_FP
phrase_lost Integer Recommended Did your child lose all words or phrases (e.g. requesting food or other needs addressing parents greeting replying when called by name or labeling familiar objects or animals) 0 :: 1 0 = no 1 = yes EDQ_3A1
phrase_lost_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3A1_L
meaning_phrase_lost Integer Recommended Did your child lose most meaningful words or phrases although may have retained a few 0 :: 1 0 = no 1 = yes EDQ_3A2
meaning_phrase_lost_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3A2_L
gesture_lost Integer Recommended Did your child lose gestures or imitative behaviors such as pointing clapping waving goodbye 0 :: 1 0 = no 1 = yes EDQ_3A3
gesture_lost_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3A3_L
understand_lang_lost Integer Recommended Did your child lose ability to understand language spoken by others 0 :: 1 0 = no 1 = yes EDQ_3A4
understand_lang_lost_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3A4_L
fam_interest_loss Integer Recommended Did your child lose interest in parents siblings relative or peers 0 :: 1 0 = no 1 = yes EDQ_3B1
fam_interest_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3B1_L
smile_response_loss Integer Recommended Did your child lose smiling in response to another person's smile 0 :: 1 0 = no 1 = yes EDQ_3B2
smile_response_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3B2_L
reach_parent_loss Integer Recommended Did your child lose reaching for caregiver (e.g. putting arms up to be lifted) 0 :: 1 0 = no 1 = yes EDQ_3B3
reach_parent_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3B3_L
eye_contact_loss Integer Recommended Did your child lose direct eye contact during communication 0 :: 1 0 = no 1 = yes EDQ_3B4
eye_contact_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3B4_L
game_interest_loss Integer Recommended Did your child lose interest in interactive games such as Peek-a-boo 0 :: 1 0 = no 1 = yes EDQ_3B5
game_interest_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3B5_L
pretend_play_loss Integer Recommended Did your child lose pretend or imaginative play 0 :: 1 0 = no 1 = yes EDQ_3B6
pretend_play_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3B6_L
feed_self_loss Integer Recommended Did your child lose ability to feed self at whatever level acquired 0 :: 1 0 = no 1 = yes EDQ_3C1
feed_self_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3C1_L
dress_self_loss Integer Recommended Did your child lose ability to dress oneself at whatever level acquired 0 :: 1 0 = no 1 = yes EDQ_3C2
dress_self_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3C2_L
toilet_skills_loss Integer Recommended Did your child lose toileting skills at whatever level acquired 0 :: 1 0 = no 1 = yes EDQ_3C3
toilet_skills_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3C3_L
motor_small_obj_loss Integer Recommended Did your child lose ability to manipulate small objects such as legos or stack blocks 0 :: 1 0 = no 1 = yes EDQ_3D1
motor_small_obj_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3D1_L
carry_ball_loss Integer Recommended Did your child lose ability to carry throw or kick a ball or climb onto furniture 0 :: 1 0 = no 1 = yes EDQ_3D2
carry_ball_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3D2_L
able_phys_loss Integer Recommended Did your child lose ability to physically move about independently 0 :: 1 0 = no 1 = yes EDQ_3D3
able_phys_loss_lgth Integer Recommended Length of loss in months 1 :: 4 1 = <3 ; 2 = 3-6 ; 3 = >6 ; 4 = don't know EDQ_3D3_L
skill_loss_age Integer Recommended At what age (in months) did your child begin to lose any of the skills EDQ_4_1
skill_loss_stop_age Integer Recommended At what age (in months) did the loss of skills appear to stop? EDQ_4_2
concern_development Integer Recommended Did you have any concerns about your child development before the regression? 0 :: 1 0 = no 1 = yes
concern_development_lt String 250 Recommended Please describe your concerns (and your child age at the time). EDQ_4_3
skills_loss Integer Recommended Was your child's loss of skills gradual or sudden? 1; 2; 9 1 = gradual 2 = sudden 9 = don't known EDQ_4_4
lost_language Integer Recommended If your child lost language skills. did he/she lose some or all words? 1 :: 2 1 = some words 2 = all words EDQ_4_5
before_loss_words Integer Recommended About how many words (maximum) did your child use before the loss? EDQ_4_6
after_loss_words Integer Recommended About how many words (maximum) does he/she use now? EDQ_4_7
illness_spfy Integer Recommended Was there any suggestion that the loss of skills was associated with a physical illness such as a high fever encephalitis or seizure activity or with an immunization? 0 :: 1 0 = no 1 = yes EDQ_4_8
illness_spfy_lt String 250 Recommended If there was any suggestion that the loss of skills was associated with a physical illness please describe EDQ_4_8B
loss_skills_stressors Integer Recommended Was there any suggestion that the loss of skills was associated with other stressors such as birth of a sibling death in the family moving or other environmental events/factors? 0 :: 1 0 = no 1 = yes EDQ_4_9
loss_skills_stressors_lt String 250 Recommended If there was any suggestion that the loss of skills was associated with other stressors please describe EDQ_4_9B
adaptive_losses Integer Required The number of yes responses between the elements feed_self_loss, dress_self_loss and toilets_kills_loss 0::3
communication_losses Integer Required The number of yes responses between the elements phrase_lost, meaning_phrase_lost, gesture_lost and understand_lang_lost 0::4
communications_scale Integer Required Communications Scale for EDQ
early_develop_summ_score Integer Required Social Total + Communication Total 0 :: 90
motor_losses Integer Required The number of yes responses between the elements motor_small_obj_loss, carry_ball_loss and able_phys_loss 0 ; 1; 2; 3
regression_summ_score Integer Required Total losses in Social and Communication losses 1 :: 10
repetitive_behavior_scale Integer Required Repetitive Behavior Scale for EDQ
social_losses Integer Required The number of yes responses between the elements fam_interest_loss, smile_response_loss, reach_parent_loss, eye_contact_loss, game_interest_loss and pretend_play_loss 0::6
social_scale Integer Required Social Scale for EDQ
ethnicity String 30 Required Ethnicity of participant Hispanic or Latino; Not Hispanic or Latino; Unknown
respondent String 20 Required FIGS Y1: Respondent (mother or father) Mother; Father; Both; Other