The Generalized Anxiety Disorder (GAD) questionnaire (Spitzer et al., 2006) is a 7-item scale designed to measure generalised anxiety disorder. Different versions of the scale have been created which include a subset of the original 7 items.
Reference
Spitzer, R. L., Kroenke, K., Williams, J. B., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: the GAD-7. Archives of internal medicine, 166(10), 1092-1097. http://dx.doi.org/10.1001/archinte.166.10.1092
List of questions
| Question number | Question | Original 7-item version | 2-item version |
| 1 | Over the last 2 weeks, how often have you been bothered by the following problems? Feeling nervous, anxious, or on edge | ✓ | ✓ |
| 2 | Over the last 2 weeks, how often have you been bothered by the following problems? Not being able to stop or control worrying | ✓ | ✓ |
| 3 | Over the last 2 weeks, how often have you been bothered by the following problems? Worrying too much about different things | ✓ | |
| 4 | Over the last 2 weeks, how often have you been bothered by the following problems? Having trouble relaxing | ✓ | |
| 5 | Over the last 2 weeks, how often have you been bothered by the following problems? Being so restless that it is hard to sit still | ✓ | |
| 6 | Over the last 2 weeks, how often have you been bothered by the following problems? Becoming easily annoyed or irritable | ✓ | |
| 7 | Over the last 2 weeks, how often have you been bothered by the following problems? Feeling afraid as if something awful might happen | ✓ |
Use of this scale in CLOSER Discovery study questionnaires and datasets
ALSPAC COVID Questionnaire 1
2020 Cohort Member COVID-19 Questionnaire 1
2
2
-
6-
-2021
4
4 and Life at 28+
-
5-
Parent
1
1
2020
Parent
2ALSPAC COVID Questionnaire 2 Dataset
Parent
6
2013
2014Your Life Now 21+ ALSPAC Your Life Now (21+) Questionnaire Dataset
-2021
COVID Only
WCHADS
Retest
WCHADS
2019
2020
Questionnaire
2021
Cohort Member
3
Cohort Member
3
MCS
1
1
MCS
2020
Parent
2
Parent
2
| Version | Study | Year | Questionnaire | Dataset |
| Original 7-item version | ALSPAC |
| 2013-2014 | Your Life Now 21+ | ALSPAC Your Life Now (21+) Questionnaire Dataset | |
| Original 7-item version | ALSPAC | 2020 | Cohort Member COVID-19 Questionnaire |
| 1 | ALSPAC COVID Questionnaire |
| 1 Dataset | |
| Original 7-item version | ALSPAC |
| 2020 | Cohort Member COVID-19 Questionnaire |
| 2 | ALSPAC COVID Questionnaire 2 Dataset | |
| Original 7-item version | ALSPAC | 2020 |
| Parent COVID-19 Questionnaire |
| 1 | ALSPAC COVID Questionnaire |
| 1 Dataset | |
| Original 7-item version | ALSPAC |
| 2020 | Parent COVID-19 Questionnaire |
| 2 | ALSPAC COVID Questionnaire 2 Dataset | |
| Original 7-item version | ALSPAC | 2020-2021 |
| COVID-19 Questionnaire |
| 4 | ALSPAC COVID Questionnaire |
| 4 and Life at 28+ Dataset | |
| Original 7-item version | ALSPAC |
| - |
| Cohort Member COVID-19 Questionnaire |
| 6 | - | |
| Original 7-item version | ALSPAC | - |
| COVID-19 Questionnaire |
| 5 | - |
| Original 7-item version | ALSPAC |
| - |
| Parent COVID-19 Questionnaire 6 | - | |||
| Original 7-item version | SWS | 2020 | SWS Women Questionnaire COVID-19 2020 | - |
| Original 7-item version | WCHADS | 2019-2020 | WCHADS Phase 14 Mother Questionnaire | - |
| Original 7-item version | WCHADS | 2019-2020 |
| WCHADS Phase 15 Mother |
| Questionnaire | - |
| Original 7-item version |
| WCHADS | 2020-2021 | WCHADS Phase 15 Mother COVID |
| Only Questionnaire | - |
| Original 7-item version |
| WCHADS |
| 2020- |
| 2021 | WCHADS Phase 15 Mother |
| COVID Retest | - | |||
| 2-item version | BCS70 | 2020 | BCS70 Age 50 COVID-19 Survey - Wave 1 | BCS70 COVID-19 Survey in Five National Longitudinal Cohort Studies (2020) Wave 1 Dataset |
| 2-item version | BCS70 | 2020 | BCS70 Age 50 COVID-19 Survey - Wave 2 | BCS70 COVID-19 Survey in Five National Longitudinal Cohort Studies (2020) Wave 2 Dataset |
| 2-item version | BCS70 | 2021 | BCS70 Age 50 COVID-19 Survey - Wave 3 | BCS70 COVID-19 Survey in Five National Longitudinal Cohort Studies (2020) Wave 3 Dataset |
| 2-item version | MCS | 2020 | MCS Age 20 Cohort Member COVID-19 Survey - Wave 1 | MCS Cohort Member COVID-19 Survey in Five National Longitudinal Cohort Studies (2020) Wave 1 Dataset |
| 2-item version | MCS |
| 2020 | MCS Age 20 |
| Parent COVID-19 Survey - Wave |
| 1 | MCS |
| Parent COVID-19 Survey in Five National Longitudinal Cohort Studies (2020) Wave |
| 1 Dataset |
| 2-item version |
| MCS | 2020 | MCS Age 20 Parent COVID-19 Survey - Wave |
| 2 | MCS Parent COVID-19 Survey in Five National Longitudinal Cohort Studies (2020) Wave |
| 2 Dataset |
| 2-item version |
| MCS |
| 2021 | MCS Age 20 |
| Cohort Member COVID-19 Survey - Wave |
| 3 | MCS |
| Cohort Member COVID-19 Survey in Five National Longitudinal Cohort Studies (2020) Wave |