. Provide an overview of the study and describe the strategy that was used to select the sample from the population

The selected research article is “Development of a brief, clinically relevant, digital picture rating scale for the assessment of psychosis” by Palmier-Claus et al. (2019). This study aimed to develop a brief, digital picture rating scale to assess psychosis that could be easily administered in clinical settings. The sampling method used was convenience sampling, where participants were recruited from NHS mental health services and online platforms. The authors justified this method by stating that the recruitment process was challenging due to the stigma associated with psychosis, and it was difficult to find individuals who were willing to participate.

The effectiveness of convenience sampling can be debated as it may not represent the population’s true characteristics, and there may be selection bias. However, the authors acknowledged the limitations of their sampling method and provided several strengths of their study, such as the large sample size and the inclusion of a diverse range of individuals with different degrees of psychosis severity. Additionally, the use of online recruitment may have increased the sample’s representativeness. In conclusion, while convenience sampling may not be the most rigorous sampling method, the authors provided justifications and limitations and strengths of their study.

Reference: Palmier-Claus, J. E., Murphy, E., Benson, L., Brown, G., & Barrowclough, C. (2019). Development of a brief, clinically relevant, digital picture rating scale for the assessment of psychosis. Schizophrenia Research, 206, 338-343. https://doi.org/10.1016/j.schres.2018.10.030