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The Beck Depression Inventory-II (BDI-II) is a multiple-choice diagnostic assessment tool used to determine the severity of the depressive disorder symptoms in the partaker. The inventory was developed in 1961 and revised to the BDI-II version in 1996 by Aaron T. Beck. The instrument contains 21 items on a 4-point scale and is based on the assumption that depression impairs cognition and behavior and physically impacts the affected individuals.
The test is highly accurate and can be used to evaluate the manifestation of depression in persons aged 18 to 80. Despite the BDI-II being well-regarded by mental health practitioners worldwide, it has certain disadvantages as it is outdated and can be easily manipulated by test-takers. The following paper describes and evaluates the inventory and recommends amendments for users and direction for future research.
Beck Depression Inventory-II Test Critique
Diagnosing a person with a mental health disorder is a complex process. It requires counselors to refer to various assessment instruments and strategies to determine the severity of the patient’s condition and decide the suitable treatment. One such instrument is the Beck Depression Inventory-II (BDI-II) diagnostic test aimed at detecting depressive disorder. This paper will provide a thorough description and evaluation of the BDI-II assessment and recommendations for the administration and further research.
General Information
The Beck Depression Inventory-II (BDI-II) is a multiple-choice diagnostic questionnaire. It is a psychometric assessment developed to measure the severity of depressive disorder on cognitive, emotional, behavioral, and physical levels (Keller et al., 2020). The Beck Depression Inventory (BDI) was first created in 1961 by psychiatrist Aaron T. Beck for the general evaluation of depressive symptoms, with the revised version, the BDI-II, being developed in 1996 (Keller et al., 2020). It is widely employed as it is easy to utilize and can be offered to diverse adult populations and adolescents aged 13 to 18 (Keller et al., 2020).
The BDI-II has 21 items on a 4-point scale and evaluates the severity of symptoms in the past two weeks in the individuals taking the test (Keller et al., 2020). It also complies with the criteria for depressive disorder as described in the universally used Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) and International Classification of Diseases (ICD-10) (Keller et al., 2020). Both the two-week time limit and the compliance with the international criteria for depression contribute to the BDI-II being exceptionally reliable and well-regarded among mental health professionals.
The BDI-II is widely used worldwide due to its dependability, consistency, and suitability for different age groups. According to Lee et al. (2017), the test has been translated into several languages, accounting for the cultures of the target nations to preserve its validity and reliability. The first revision of the tool, BDI-IA, developed in 1978, and the short version BDI Fast Screen for Medical Patients (BDI-FS) are available to medical professionals (Jackson-Koku, 2016). As indicated in its name, the BDI-FS is focused on evaluating depression manifestations in individuals in primary care, whereas other versions can be used both for general and hospital populations. The BDI-II has also undergone review and correction, with some items being replaced and reviewed to reflect the clinical criteria for depressive disorder (Jackson-Koku, 2016).
Nevertheless, all the test variations are examples of objective measure instruments as they are independent of rater bias and allow users to self-report their symptoms while selecting statements from a limited set of items.
The BDI-II is available both to healthcare practitioners and any individual interested in discovering whether there are depressed. The assessment is available online with the internet search showing various scoring services and free copies of the test. However, the BDI-II is copyrighted, with the rights owned by the Harcourt Assessment Incorporated (Pearson Education Plc) (Jackson-Koku, 2016). The BDI-II tool can be acquired from the official Pearson website in English and Spanish languages, with the manual on how to evaluate the assessment sold separately (Pearson, 2021). Thus, one copy of the BDI-II from Pearson Assessments costs $3.20, with the price reduced for multiple copies purchased (Pearson, 2021). It is unclear whether the test is readily available online in other languages. Overall, the BDI-II instrument can be easily accessed online, and its copyrighted version is reasonably priced.
The BDI-II is based on the assumption that depressive disorder affects the patients’ cognition and behavior. Thus, the hypothesis states that the negative thoughts, emotions, and specific physical changes are symptomatic of depression. Therefore, the test results reflecting this negativism indicate the disease’s presence and severity (Jackson-Koku, 2016). Thus, the BDI-II allows identifying the distortions in the cognitive ability and behavior and diagnosing the depressive disorder.
Test Description
The BDI-II consists of 21 items with four available responses. It includes questions to determine the progression of somatic, behavioral, emotional, and cognitive symptoms of depression in the preceding two weeks (Keller et al., 2020). Although the test is not formally divided into sections, the items are grouped according to different factors. For example, questions on self-incrimination measure cognitive symptoms, while articles on sleep, weight, and appetite changes evaluate the somatic manifestations of the disorder. In addition, irritability, loss of pleasure, and suicidal ideation are also addressed in the questionnaire. Notably, mental health practitioners can vary the factors in the BDI-II to reflect the studied patients in the given assessment settings.
Test Content
The BDI-II focuses on evaluating the construct of depression and its cognitive, somatic, and behavioral, and emotional indicators. The construct is multidimensional, and its various dimensions such as sadness, pessimism, irritability, fatigue, guilt, and social withdrawal are assessed throughout the test. The inventory relies on the theory that depression is manifested through negative cognitive distortions and alterations in the patient’s personality and thought process (Jackson-Koku, 2016). The negative changes can also be found in the behavior, feelings, and the affected individuals’ body.
Purpose of the Test
The primary purpose of the BDI-II is to assess the severity of depressive symptoms. The questionnaire has many potential uses and can be applied both for individuals in primary care and for outpatients. According to Faro and Pereira (2020), the test can be used to assess the presence of depressive disorder symptoms and their severity. For instance, it can be applied in primary healthcare settings when a patient is admitted and in individual mental health sessions to evaluate the disorder’s progression. The BDI-II is designed for a wide range of populations and can be utilized for individuals aged 13 to 80.
Test Structure
The BDI-II is not lengthy, being limited to 21 items. Notably, the BDI-FS applied in healthcare settings contains only seven items (Jackson-Koku, 2016). Each of the afforded answers is scored 0-3 for severity, with 0 representing the absence of the measured component and 3 indicating its extremity (Jackson-Koku, 2016). Notably, the statements presented for selection are sorted from less severe to most acute for each of the items. The questions are clustered, resulting in items evaluating somatic, emotional, and cognitive symptoms arranged together. It is unclear whether this grouping adds to the reliability of the test.
Test Administration
The BDI-II assessment is fully self-administered and does not require any special training on the part of the administrator. Nevertheless, it initially required delivery by trained interviewers to ensure accurate and reliable results (Jackson-Koku, 2016). Although it can be accessed and scored online as no special testing conditions are required, it is recommended to access the BDI-II under the supervision of mental health professional. Trained practitioners familiar with their client’s history can better evaluate the results and assess how severe their depression is.
Test Scoring
As mentioned earlier, each of the BDI-II items has a 4-point scale ranging from 0 to 3. The scoring of the test results is achieved by adding the answers together to determine the severity of the depressive disorder symptoms (Jackson-Koku, 2016). Thus, the lowest tally is 0, and the maximum total is 63. Scores above 20 are characteristic of depression, with 20 to 28 points considered moderate and 29 to 63 points viewed as a severe disorder (Jackson-Koku, 2016). Subscales can be added to the test items to reflect the patients’ symptoms adequately. However, they do not impact the scoring procedure, with the maximum score remaining 63. The BDI-II administered online follows the same scale and scoring method.
Technical Evaluation
Standardization
Depression is a mental health disorder prevalent among different populations. Therefore, it is essential to determine how the BDI-II reflects these groups and develop a normative sample of average test-takers. One of the most prominent research studies of the validity and reliability of the inventory was completed in the Dominican Republic. The country has an overall population of over ten million, including people of different ethnic and cultural backgrounds speaking various Spanish language dialects (García-Batista et al., 2018). As a developing low-income nation, the state has numerous cases of diagnosed and undiagnosed depression among its residents (García-Batista et al., 2018). The discussed study included 1040 participants, with 54.9% being female and 45.1% identifying as male (García-Batista et al., 2018).
In addition, general and hospital samples were recruited for the study (García-Batista et al., 2018). As the Dominican Republic has a relatively small population, the study results can be generalized to reflect the experiences of most of the people of the country.
The researchers followed established ethical procedures in obtaining the sample for the study. All participants were informed about the research’s purpose and primary objectives and provided their written informed consent (García-Batista et al., 2018). All involvement in completing the BDI-II was voluntary, with the hospital sample recruited during routine check-ups, among clients in psychiatric care and those seeking help for cardiac and high blood pressure conditions (García-Batista et al., 2018). However, it is not stated how the general sample was obtained.
The presented normative sample is adequate and includes a similar number of male and female participants and outpatient and inpatient samples. The mean age of the partakers was 27.7, pointing at the tendency of younger adults to seek help for mental health issues (García-Batista et al., 2018). The drawback of the sample is the disproportionate number of participants from the general population compared to the hospital one, which counted at 797 and 243, respectively (García-Batista et al., 2018). Overall, although the standardization sample is adequate, it would benefit more from a better representation of the hospital populace.
It can be argued that the provided norms are also satisfactory. The sample accounted for different populations, including men and women with and without chronic conditions such as hypertension and cardiac disorders. Furthermore, individuals actively seeking psychiatric help were included in the norm. Although the mean age is stated in the article, the standards would be defined better if the participants’ ages were indicated more clearly. Thus, the sample could be divided into age groups to provide more precise norms for the research.
Reliability and Validity
The consistency of the results of the study and the employed BDI-II is adequately described in the article. The internal reliability was assessed using Cronbach’s α statistic, while the inventory scores of the general sample were compared to those of the hospital population to ensure validity (García-Batista et al., 2018). Moreover, validity was guaranteed using Student’s t-tests and Holm–Bonferroni adjustments to avoid mistakes in evaluating scores (García-Batista et al., 2018). The internal reliability can be viewed as acceptable with most factors measured higher than α =.70 (García-Batista et al., 2018). Overall, adequate measures were taken to ensure the reliability and validity of the collected evidence.
Quality of Test Materials
The BDI-II is a high-quality inventory that is easy to follow for patients of all ages. The questions and the available responses are well-worded and cannot be misinterpreted. The standard BDI-II does not contain additional graphics and pictures. However, visual representations of some questions and colors can be included to appeal to younger test-takers. As the questionnaire can be bought online on the official Pearson website and printed out by the purchasing party, certain aspects of the quality of materials, such as attractiveness, depend on the administrator. Nevertheless, as the BDI-II can be employed to assess depressive disorder symptoms severity in people of different ages, it can be argued that it is durable.
Ease of Administration, Scoring, and Interpretation
The BDI-II questionnaire is easy to administer, score, and explain the results. The test is self-administered, with the completion time estimated at 5 to 10 minutes (Jackson-Koku, 2016). The scoring procedure is quite simple, with the points from the given answers added up manually or using a calculator, and does not require more than 5 minutes. The final count interpretation is reasonably straightforward, with the set scores of 20-28 and 29-63 being correlated with moderate and severe depression. However, it is advised that qualified mental health professionals evaluate the results to ensure correct interpretation and recommendations for further treatment.
Strengths and Weaknesses of the Test
The BDI-II inventory for assessing depression manifestations has both specific strengths and weaknesses. The main advantage of the test is its applicability for different populations as it is effective for individuals aged 18 to 80. Furthermore, it is easy to administer, score, and interpret the results and is readily available online through official and unofficial sources. Another advantage is the distinction between different severity levels of depression, leading to more accurate overall results.
The differentiation between moderate and severe depressive disorders also allows mental health practitioners to determine the most appropriate treatment course for their clients. The wording and the simplicity of the instruction can also be viewed as a disadvantage as patients may intentionally provide the wrong answers if they do not want to be diagnosed with depression. Thus, additional assessment instruments and strategies need to be used to thoroughly evaluate the patients’ mental health. In addition, the last revision of the test was conducted in 1996 and may not fully comply with the modern criteria for depressive disorder.
Recommendations
Several recommendations can be given with regards to the BDI-II. The users and administrators of the test should use it alongside other diagnostic instruments to ensure the reliability and validity of the results. Moreover, the inventory should not be used as a diagnostic measure for individuals with no documented history of depression but reserved for patients with the diagnosed condition to assess its progression and severity. The questionnaire should also be reviewed and updated to comply with the latest DSM-V criteria for depressive disorder. Further study of the BDI-II can include investigating the effectiveness of the test when used alongside other diagnostic tools and strategies. In addition, new items can be developed and assessed in future research.
References
Faro, A., & Pereira, C. R. (2020). Factor structure and gender invariance of the Beck Depression Inventory – second edition (BDI-II) in a community-dwelling sample of adults. Health Psychology and Behavioral Medicine, 8(1), 16–31. Web.
García-Batista, Z. E., Guerra-Peña, K., Cano-Vindel, A., Herrera-Martínez, S. X., & Medrano, L. A. (2018). Validity and reliability of the Beck Depression Inventory (BDI-II) in general and hospital population of Dominican Republic. PLOS ONE, 13(6), e0199750. Web.
Jackson-Koku, G. (2016). Beck Depression Inventory. Occupational Medicine, 66(2), 174–175. Web.
Keller, F., Kirschbaum-Lesch, I., & Straub, J. (2020). Factor structure and measurement invariance across gender of the Beck Depression Inventory-II in adolescent psychiatric patients. Frontiers in Psychiatry, 11, 1–14. Web.
Lee, E., Lee, S., Hwang, S., Hong, S., & Kim, J. (2017). Reliability and validity of the Beck Depression Inventory-II among Korean adolescents. Psychiatry Investigation, 14(1), 30–36. Web.
Pearson. (2021). Beck Depression Inventory-II. Pearson Assessments. Web.
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