Q Before starting this assignment, refresh your memory of Chapter 6 and Chapter 8. Read the attached article by Tremblay and his colleagues (2004) and evaluate its sampling and measures. Notice that this is one of the shortest articles I could find - I want to avoid overwhelming you with long readings. Apply the guidelines from Chapters 6 and 8 (listed below) and rate each one of them on the scale of 1 to 5 (or N/A – not applicable, or I/I – insufficient information). Briefly explain each of your ratings. Chapter 6 guidelines ____ 1. Was random sampling used? ____ 2. If random sampling was used, was it stratified? ____ 3. If some potential participants refused to participate, was the rate of participation reasonably high? ____ 4. If the response rate was low, did the researcher make multiple attempts to contact potential participants? ____5. Is there reason to believe that the participants and nonparticipants are similar on relevant variables? ____ 6. If a sample is not random, was it at least drawn from the target group for the generalization? ____ 7. If a sample is not random, was it drawn from diverse sources? ____ 8. If a sample is not random, does the researcher explicitly discuss this limitation and how it may have affected the generalizability of the study findings? ____ 9. Has the author described relevant characteristics (demographics) of the sample? ____ 10. Is the overall size of the sample adequate? ____ 11. Is the number of participants in each subgroup sufficiently large? ____ 12. Has informed consent been obtained? ____ 13. Has the study been approved by an ethics review board (Institutional Review Board (IRB) if in the United States or a similar agency if in another country)? ____ 14. Overall, is the sample appropriate for generalizing? Chapter 8 guidelines ____ 1. Have the actual items and questions (or at least a sample of them) been provided? ____ 2. Are any specialized response formats, settings, and/or restrictions described in detail? ____ 3. When appropriate, were multiple methods used to collect data/information on key variables? ____ 4. For published measures, have sources been cited where additional information can be obtained? ____ 5. When delving into sensitive matters, is there reason to believe that accurate data were obtained? ____ 6. Have steps been taken to keep the measures from influencing any overt behaviors that were observed? ____ 7. If the collection and coding of observations involves subjectivity, is there evidence of inter-rater (or inter-observer) reliability? ____ 8. If a measure is designed to measure a single unitary trait, does it have adequate internal consistency? ____ 9. For stable traits, is there evidence of temporal stability? ____ 10. When appropriate, is there evidence of content validity? ____ 11. When appropriate, is there evidence of empirical validity? ____ 12. Do the researchers discuss obvious limitations of their measures? ____ 13. Overall, are the measures adequate? Attachments o Tremblay et al., 2004 (trajectories of aggression during childhood).pdf