This paper presents the construct development, scale creation, and methodological analysis of a self-report diagnostic instrument designed to identify anorexia nervosa in male college students. The author argues that anorexia has been historically studied as a female disorder, but recent evidence shows increasing prevalence in males, particularly college-age men. The paper outlines the theoretical definition of anorexia nervosa, proposes a 10-item yes/no screening tool, justifies the nominal scale of measurement, and discusses sampling strategy (n=100, ages 18–23). The author defends self-reporting over face-to-face interviews given the sensitivity of the topic, outlines a test-retest reliability approach, and advocates for construct validity as the primary validation method. The study addresses a significant gap in clinical assessment tools for males and proposes a pathway toward updating diagnostic criteria in the DSM to account for masculine presentations of eating disorders.
The construct under measurement is anorexia nervosa in male college students. Anorexia nervosa is defined as an obsession with thinness (Soban, 2006), characterized by restrained eating, vomiting, and laxative abuse (O'Dea & Abraham, 2002), along with compensatory behaviors such as binge eating, purging, and other weight-control practices (Reyes-Rodriguez et al., 2011).
Five core items constitute the domain under study:
The most appropriate scale of measurement for this domain is nominal. A nominal scale is the best choice because this domain calls for simple yes or no answers. The nominal scale places data into categories without imposing any particular order. There is no distance between "yes" and "no"—the choices are categorical only.
An actual test for anorexia would employ self-reporting. Both self-reporting and face-to-face interview instruments have pros and cons. Self-reporting was chosen because it provides a more comfortable setting for respondents. Anorexia is a sensitive subject, and allowing individuals to self-report prevents them from feeling judged. Many people with anorexia are in denial and may refuse to answer questions face-to-face to a stranger. A drawback to self-reporting is the possibility of deceit; however, face-to-face interviews introduce interviewer bias. Given the sensitivity of the subject matter, self-reporting is the superior choice.
For many years, anorexia has been studied predominantly in females, a focus that reflects and reinforces societal assumptions. The DSM-IV even specifies diagnostic criteria related to the menstrual cycle in women. Anorexia and other eating disorders have been treated as feminine issues for centuries, but this has shifted dramatically in the last decade. Anorexia nervosa is not very common in males, but psychologists have recently begun investigating male cases with overwhelming results: anorexia nervosa has increasingly become more prevalent in males, especially in college students.
A critical problem exists in the lack of gender-specific treatment for males. Psychologists have begun examining anorexia nervosa as a cultural problem that incorporates unique masculine features and issues related to masculinity. The goal is to develop male-specific treatments and change society's perception of eating disorders as exclusively feminine disorders. This research addresses a significant clinical and social gap.
According to the American Psychiatric Association, the DSM-IV (Diagnostic and Statistical Manual, Volume 4) provides guidelines and criteria for mental disorders. For eating disorders, the DSM-IV specifies diagnostic criteria for anorexia, bulimia, and EDNOS (Eating Disorders Not Otherwise Specified). It is important to note that individuals may still have an eating disorder or body image issues without meeting full diagnostic criteria.
The DSM-IV diagnostic criteria include: a refusal to maintain body weight at or above a minimally normal weight for age and height (e.g., weight loss leading to maintenance of body weight less than 85% of that expected); an intense fear of gaining weight or becoming fat, even though underweight; and a disturbance in the way one's body weight or shape is experienced, with undue influence of body weight or shape on self-evaluation or denial of the seriousness of current low body weight (American Psychiatric Association, 1994). Based on this gap in male-focused assessment, the author selected the topic of anorexia in men.
The target population for the pilot test is college-age males, specifically ages 18 to 23. These are formative years when societal influence is greatest, particularly for individuals away from their home environment. Society impacts males just as it does females, but males are less inclined to report anorexia because it has been culturally coded as a feminine issue. Societal stigma may discourage males from disclosing what is perceived as a feminine disorder.
Certain characteristics linked to women with anorexia may also apply to men. The study would target males who lived in single-family homes with their mothers, as women with anorexia often transmit the disorder to their children. The study would also consider males with histories of sexual abuse, as abuse has been linked to lower self-esteem in women with anorexia and may play a similar role in men. Family history of lack of nurturance is another established risk factor. A sample of 100 males is proposed—large enough to yield meaningful data but small enough to maintain study integrity given the scarcity of male-specific research on this topic.
To ensure proper results, the study would employ test-retest reliability. This method allows numerous students to be tested and their results compared over time, demonstrating consistency. The retest would be conducted relatively soon after the initial test to keep participants within the suspected age range for symptom onset. Throughout the course of the study, males might receive therapy for issues affecting anorexia onset, allowing the researcher to observe changes in test responses.
Test-retest is an appropriate choice for this population and research context. The instrument is inexpensive, and college students are readily accessible for research participation. Test-retest reliability reveals the stability of results without introducing confounding variables—for example, whether participants took the test after social activities would not meaningfully affect outcomes. Of all reliability measures, this approach best suits the needs of the test subjects and the research objectives.
With respect to validity, the study relies on construct validity. Construct validity measures a person's judgment regarding how well the scores reflect their standing on the underlying construct. Anorexia does not arise spontaneously; it is triggered or brought on by behavior and psychological patterns. This construct-based approach is ideal for the proposed instrument.
Because little prior research exists on male anorexia, construct validity provides the flexibility necessary for instrument development. Construct validity allows for a wide range of variance and acknowledges the time and effort required to develop a new test with minimal precedent. This framework creates space for the evidence to develop iteratively, which is essential for an emerging assessment tool.
"Potential impact on DSM revision and broader male eating disorder research"
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