Psychological Test Evaluation: Beck Anxiety Inventory (BAI)
Section 1: General Features
a) Title: Beck Anxiety Inventory (BAI)
b) Author(s): Aaron T Beck, Robert A Steer
c) Publisher: Pearson Education, Inc.
d) Publication Year: 1993
e) Age Range: 17 years to adult (Beck & Steer, 1993)
f) Qualification Code: CL2
Section 2: Instrument Description
a) Instrument Function: What does it measure?
BAI is a tool used to measure the level of anxiety in persons aged 18 and above. It is the criteria referenced assessment instrument. The Beck Anxiety Inventory provides professionals with a strong basis on which to anchor their diagnosis and decisions about the same (Beck et al., 1988; Beck & Steer, 1993). The instrument can be used to measure baseline anxiety to establish how effective treatment is as it goes on. It can also be applied as an outcome measure during the post-treatment period.
(a) Population: Who does the instrument target?
Adults and adolescents- to measure their anxiety levels
(b) How is the instrument used and scored?
The instrument can be used verbally by a trained expert or administered by self and cored by hand
(c) What type of scores does the instrument produce?
The instrument uses a manual scoring or Q-global scoring approach. Q-global is an internet-based site for administration of tests, scoring them, and reporting. It is the home of the industry’s universal standard for assessment. It can be accessed by all internet users. Q-global is fast and efficient in organizing information for examinees, generation of scores, and production of reports that are accurate and comprehensive. The scores range from 0 to 63 and are classified as minimal anxiety, mild anxiety, moderate and severe with scores of 0-7, 8-15, 16-25, and 30-63 respectively (Beck et al., 1988; Gillis, Haaga & Ford, 1995; Halfaker et al., 2011). Generally, the scores are generated from the raw score, although T-scores also exist along with percentiles informed by Psych Corp’s sample of community adults.
Section 3: Psychometric Properties
Describe the norm group. Explain if it is representative, current, and large enough? Explain if the instrument is appropriate for multicultural populations?
The respondents are requested to report how much they have been bothered during the week by each of the 21 symptoms before the BAI testing completion, including the day of completion. Each of the symptoms is provided with four answer options considered to be all possible, i.e., Not at all= 0; mild moderately=2, severely=3(Beck et al., 1988). The scoring formula is a simple process for anyone with the knowledge of the English language, even at the basic level. Furthermore, the tool has attracted validation in various languages across the globe, including Chinese, German, Icelandic, Spanish, French, among others (Oh et al., 2018). The tool is a reliable discriminating tool for anxious and non-anxious people. Therefore, it is widely used as a screening tool for anxiety in a wide range of clinical environments. Thus, it would be accurate to say that it is used by multicultural communities.
Describe the reliability evidence of test results (test-rest, alternate forms, internal consistency, inter-rater reliability). Is there enough reliability evidence to make a decision whether to use or not to use the instrument?
Eighty-three patients drawn from a group that had completed their BAI indicated an average item correlation of .60 Beck & Steer, 1993; Biggs, 2008). The internal consistency using Cronbach’s alpha stretches from .92 to -94 for adults test, and the re-test reliability is .75. The BAI has demonstrated acceptable reliability. It also shows discriminant and convergent validity for people aged 14 to 18 years in inpatient setups and outpatient (Beck et al., 1988; Gillis et al., 1995). Therefore, the BAI is psychometrically sound to warrant usage.
Describe the validity evidence of test results (content, criterion-related, construct). Is there enough validity evidence to make a decision whether to use or not to use the instrument?
The concurrent validity compared with the Hamilton Anxiety Rating is .51; .58 for state and .47 in Trait subscales of State-Trait Anxiety Inventory (STAI) form Y. It reads 54 for the seven days mean anxiety rating of the weekly record of anxiety and depression (Beck et al., 1988; Beck & Steer, 1993). Thus, yes, the scale provides sufficient validity to inform a decision to use it.
Describe and summarize at least two different professional reviews of the test, i.e., Mental Measurement Yearbook, Tests in Print, or other sources.
A review of survey-based test...
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