Article review over a study on anorexia

uthors’ aim was to identify the daily trajectories AN, examine the occurrence of eating disorder behaviors across the identified trajectories and study the distribution of the eating disorder behaviors across the day for the identified patterns. The authors hypothesized that eating disorder behaviors are likely to occur on those days with higher and variable anxiety (Lavender et al, 2013). In addition, the authors hypothesized that tendency of having days with high anxiety levels would be related to the presence of anxiety disorders and co-occurring mood (Lavender, et al, 2013).
The study participants were 118 women, 59 of whom met the DSM-IV criteria for full AN, and the other 59 met the sub threshold AN. The study sample had a mean body mass index of 17.2 kg/M2 and the mean age was 25.3 years. In the study, three measures were taken: current AN and sub threshold AN using the Structured Clinical Interview for DSM–IV Axis I Disorders, Patient Edition (SCID-I/P). personality dysfunction using the Dimensional Assessment of Personality Pathology—Basic Questionnaire (DAPP–BQ). and momentary anxiety based on the Profile of Mood states (POMS) (Lavender, et al, 2013). The study procedure first involved the recruitment of participants from three different sites in the US- Chicago, Fargo and Minneapolis. The participants were obtained from eating disorder treatment centers, advertisements in newspapers, through flier and through mailing of easing disorder professionals. Self report questionnaires and structured interviews were used to assess the participants. The participants were trained on the use of palmtop computers which they used to record the data. The collected data was reviewed by research experts. The momentary anxieties measures were collected six times a day at times at semi random times over a period of two weeks.
For the statistical analyses, model identification aimed at identifying the daily trajectories of anxiety was done using the latent