Calculator to Convert the Norse Feedback version 3.0 to the Patient Health Questionnaire-8 (PHQ-8) and Generalized Anxiety Disorder 7-item (GAD-7) This online calculator (i.e. crosswalk) computes Patient Health Questionnaire-8 (PHQ-8; Kroenke & Spitzer, 2002) and Generalized Anxiety Disorder 7-item (GAD-7; Spitzer et al., 2006) scores from the Norse Feedback (McAleavey et al., 2021; Nordberg et al., 2021) scores using the methods described in Sah et al. (Sah et al., under review). 

To use this calculator, please follow the steps below. You will need complete data on the Norse Feedback (i.e., no missing value) for this calculator.

1. First, select whether you will be entering Norse Feedback subscale scores or Norse Feedback trigger item scores in the yellow box. 
2. Enter the Norse Feedback scores to each content area in the boxes below. If your subscale scores or trigger item scores have decimal points, please be sure to enter two decimal points (For example, if your subscale score is 4.352, enter 4.35; if your subscale score is 4.1, enter 4.1 as it is). If the scores are whole numbers, you do not need to enter decimal points (For example, if your subscale score is 5, enter 5 as it is). 
3. After you have completed entering all Norse Feedback scores, click on “Calculate” to generate the PHQ-8 and GAD-7 scores. 

Note: For Norse Feedback subscales that include one item, and for Norse Feedback single items, trigger scores and subscale/single scores are the same. The Norse Feedback items that are not included in the analyses were Suicidality, Medication, Alliance, and Social Determinants of Health. 

From:
Norse subscale scores
Norse trigger item scores

To:
PHQ-8 and GAD-7

Anger (1-7)

Physical health (1-7)

Sexuality (1-7)

Cognitive problems (1-7)

Quality of life (0-10)

Sleep (1-7)

General functioning (1-7)

Readiness for change (1-7)

Social avoidance (1-7)

Hopelessness (1-7)

Eating concerns (1-7)

Social support (1-7)

Internal avoidance (1-7)

Sad affect (1-7)

Substance use (1-7)

Intrusive memories (1-7)

Self compassion (1-7)

Urges (1-7)

Pain (1-7)

Self-contempt (1-7)

Worry (1-7)

Physical anxiety (1-7)

Self-harm (1-7)

Clear All Calculate

Scale	Score Estimate	95% Confidence Interval
PHQ-8
GAD-7

Results

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Disclaimer:

The content and calculator on this website (a) are solely for informational, educational purposes to demonstrate the methods described in Sah et al. in connection with the publication of the manuscript, (b) do not constitute medical advice and do not substitute for professional medical advice, diagnosis or treatment, and (c) must not be used or relied upon by anyone as a substitute for medical advice, including by a healthcare provider as a consultation with a specialist. The content and calculator on this website have not been evaluated or approved by the United States Food and Drug Administration.