2. [n a study ofthree nationally representative largescale datasets from Ireland1 the United States. and the United Kingdom (rt = [734?]. teenagers between the ages of 12 to 15 were asked to keep a diary of their screen time and answer questions about how they felt or acted. The answers to these questions were then used to compute a psychological well~being score. Additional data were collected and included in the analysis1 such as each child's sex and age. and on the mother's education. ethnicity. psychological distress, and employment. The study concluded that there is little clearcut evidence that screen time decreasEs adolescent Wellbeing [Drben and Baulrrtey-Przybyls]:i1 so 1 s}. a} What type of study is this? Briey explain. b} Identify the explanatory variables. e} Identify the response variable. d'} Coirunent on 1whether the results of'the study can be generalized to the population, and why. e} Comment on whether the results of'the study can be used to establish causal relationships