Anxious Thoughts Inventory (AnTI)

Abstract

The Anxious Thoughts Inventory (AnTI) is a widely utilized self-report psychological scale developed by Adrian Wells in 1997. It is designed to measure the frequency and content of specific negative and intrusive thoughts characteristic of generalized anxiety disorders. The instrument consists of 22 items rated on a 4-point Likert scale, assessing common worry themes such as health concerns, social failure, and poor cognitive control.

The AnTI serves as a crucial assessment tool in research and clinical practice, particularly within the framework of cognitive therapy and the Metacognitive Model of psychopathology. It provides a reliable measure of the cognitive burden experienced by individuals, making it highly valuable for establishing baseline severity and monitoring treatment effectiveness in reducing the frequency of anxious thought content.

Keywords

Anxious Thoughts Inventory, AnTI, Adrian Wells, generalized anxiety, worry content, cognitive therapy, metacognition, psychological assessment, self-report scale, intrusive thoughts.

Authors

Adrian Wells

Purpose

The primary purpose of the Anxious Thoughts Inventory (AnTI) is to quantify the frequency with which individuals experience various categories of negative and distressing thoughts. Unlike measures that focus solely on the process of worry, the AnTI specifically targets the content of these anxious cognitions, providing a detailed profile of the individual’s core worry themes.

This scale is instrumental for clinicians utilizing the Metacognitive Model, as it helps distinguish between individuals based on their core worry themes (e.g., physical vs. social threats). Furthermore, tracking changes in AnTI scores over the course of psychological interventions allows researchers and practitioners to assess treatment efficacy in reducing the overall frequency and intensity of negative thought content associated with anxiety disorders.

Construct

The AnTI measures the construct of Anxious Thought Content. This construct encompasses the specific topics or themes around which an individual’s worry and anxiety revolve. The 22 items of the AnTI sample a broad range of common worries, including somatic concerns (health anxiety), social evaluation fears, fear of failure, and concerns related to loss of cognitive control.

In the context of Adrian Wells’s theoretical work, the frequency of these anxious thoughts is often linked not just to general trait anxiety but also to underlying metacognitive beliefs—the beliefs individuals hold about their own thoughts (e.g., believing worry is uncontrollable or dangerous). High scores on the AnTI indicate a significant prevalence of negative, self-referential, and persistent intrusive thoughts, which are core features of Generalized Anxiety Disorder (GAD).

Validity

The AnTI demonstrates strong construct validity, consistently correlating highly with other established measures of anxiety and worry, such as the Penn State Worry Questionnaire (PSWQ) and validated measures of GAD severity. Studies have shown that the AnTI effectively discriminates between clinical populations diagnosed with anxiety disorders and non-clinical control groups, confirming its ability to measure a relevant clinical phenomenon.

Concurrent validity is supported by the scale’s relationship with measures of general psychological distress, depression, and functional impairment. Furthermore, the sensitivity of the AnTI to change following psychological intervention confirms its criterion validity as a useful outcome measure in treatment studies focused on reducing the burden of anxious cognitions.

Reliability

The Anxious Thoughts Inventory exhibits excellent internal reliability. Across various research samples, the scale typically yields high Cronbach’s alpha coefficients, often ranging from 0.90 to 0.95, indicating strong internal consistency among the 22 items. This suggests that the items are coherently measuring a unitary construct of anxious thought frequency.

Test-retest reliability, assessed over periods ranging from two weeks to one month, is generally high (r > 0.70), confirming the stability of the measure over time when the underlying clinical status is presumed stable. This high degree of reliability makes the AnTI a dependable instrument for both clinical assessment and longitudinal research tracking.

Factor Analysis

While the AnTI is frequently employed as a unidimensional measure of overall anxious thought frequency, factor analytic studies typically identify stable subscales based on the content of the worry. These subscales generally align with common anxiety themes, although the exact number of factors can vary slightly across diverse samples and cultures.

Commonly extracted factors often include, but are not limited to:

• Health/Somatic Worry: Items related to illness, physical symptoms, disease, and death (e.g., “I worry about my physical health”).
• Social/Performance Worry: Items concerning failure, social evaluation, embarrassment, and interpersonal concerns (e.g., “I worry about making a fool of myself”).
• Cognitive Control/Intrusiveness: Items related to difficulty clearing the mind, repetitive thoughts, and perceived inability to control one’s own cognitions (e.g., “I worry that I cannot control my thoughts as well as I would like to”).

Instrument

Test Type: Self-report questionnaire / Psychological scale

Format: 22 items, 4-point Likert scale (1=Almost never, 2=Sometimes, 3=Often, 4=Almost always)

Language Available: English (Original), various translations (e.g., Turkish, Spanish, Norwegian, etc.)

Population Group: Clinical and non-clinical adults and adolescents

Age Group: 16 years and older (Primarily utilized in adult populations)

Population Details: Originally validated on undergraduate students and clinical samples suffering from generalized anxiety and other anxiety disorders.

Test Methodology: Total scores are calculated by summing the responses across all 22 items, yielding a possible score range of 22 to 88. Higher scores indicate a greater frequency and prevalence of anxious thoughts.

Keywords

Health anxiety, social anxiety, worry content, GAD assessment, Adrian Wells, psychometrics, self-report inventory, clinical assessment.

Authors

Author ORCID Identifier: Not publicly provided for this instrument.

Affiliation Email addresses: Contact details are typically managed via the publisher or current academic institution (e.g., University of Manchester).

Correspondence Address: Refer to the primary author, Professor Adrian Wells, associated with the current institution (e.g., School of Psychological Sciences).

Permissions & Fee and Test Year

Test Year: 1997 (Established in the primary reference text).

Permissions & Fee: The scale is often utilized in clinical and academic settings under the assumption of fair use for non-commercial research, especially as it is published within a major academic text. However, formal permission for commercial use, modification, or full reproduction should be sought from the primary author, Adrian Wells, or the publisher, Wiley.

Reference’s

Wells, A. (1997). Cognitive therapy of anxiety disorders: A practice manual and conceptual guide. Chichester: Wiley.

Additional academic resources related to the AnTI and its use in research:

• The original PDF instructions and scale items may be referenced via the publisher’s site. The original PDF can be downloaded here: http://onlinelibrary.wiley.com/doi/10.1002/9780470713662.app3/pdf
• A second related PDF resource: http://onlinelibrary.wiley.com/doi/10.1002/9780470713662.app4/pdf
• Wiley Book Link: http://onlinelibrary.wiley.com/book/10.1002/9780470713662
• Related Thesis/Dissertation: http://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1801&context=etd
• Academic Journal Article: http://bmo.sagepub.com/content/23/4/526.short

Items of the Anxious Thoughts Inventory (AnTI)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

Instructions: A number of statements which people have used to describe their thoughts and worries are given below. Read each statement and put a circle around the most appropriate number to indicate how often you have these thoughts and worries.

Do not spend too much time on each statement. There are no right or wrong answers and the first response to each item is often the most accurate.

1=Almost never‚ 2=Sometimes‚ 3= Often‚ 4= Almost always

1. I worry about my appearance
2. I think I am a failure
3. When looking to my future I give more thought to the negative things than the positive things that might happen to me
4. If I experience unexpected physical symptoms I have a tendency to think the worst possible thing is wrong with me
5. I have thoughts about becoming seriously ill
6. I have difficulty clearing my mind of repetitive thoughts
7. I worry about ha‎ving a heart attack or cancer
8. I worry about saying or doing the wrong thing when among strangers
9. I worry about my abilities not living up to other people’s expectations
10. I worry about my physical health
11. I worry that I cannot control my thoughts as well as I would like to
12. I worry that people don’t like me
13. I take disappointments so keenly that I can’t put them out of my mind
14. I get embarrassed easily
15. When I suffer from minor illnesses such as a rash I think it is more serious than it really is
16. Unpleasant thoughts enter my head against my will
17. I worry about my failures and my weaknesses
18. I worry about not being able to cope in life as adequately as others seem to
19. I worry about death
20. I worry about making a fool of myself
21. I think I am missing out on things in life because I worry too much
22. I have repetitive thoughts such as counting or repeating phrases

Please check that you have responded to all of the items. Thank you.