Read the following passage carefully and explain the steps of the scientific method used in the paragraph given below. Write down the name of the steps and pick up an example from the passage to show where it has been used.                                                                        

The present study aims to investigate the role of emotional intelligence in the subjective well-being of caregivers of patients with substance use disorder. In light of the scientific literature, it was hypothesized that emotional intelligence would predict subjective well-being among the caregivers of patients with substance use disorder. To investigate this relationship, a total number of 100 caregivers of patients with substance use disorder participated in the study (50 males and 50 females). The age range of participants was from 25-50 years. Trait emotional intelligence was measured by Trait Emotional Intelligence Questionnaire - Short Form (Shahzad, Riaz, Begum, Khanum, 2014) and Subjective well-being was measured by using the Institute of Clinical Psychology Subjective Well-Being Scale (ICP-SWBS; Moghal, 2012). 

Linear Regression analysis was conducted to test the hypothesis. Results of the study indicate that emotional intelligence significantly predicts subjective well-being among the caregivers of patients with substance use disorder. The findings of the research are beneficial in planning strategies to enhance emotional intelligence and well-being in caregivers of patients with substance use disorder so psychiatric problems can be prevented.