read attached article evaluate each question below on a scale of 1 to 5 or give an N/A (not applicable) or I/I (insufficient information) when applying it to the study described in Angel et al.’s (2014) article. Make sure to explain your rating for each evaluation question in a couple of sentences.
1. If two or more groups were compared, were the participants assigned at random to the groups?
(Explain)
____ 2. If two or more comparison groups were not formed at random, is there evidence that they were initially equal in important ways?
(Explain)
____ 3. If two or more comparison groups were not formed at random, is there evidence that they were initially equal in important ways?
(Explain)
____ 4. If only a single participant or a single group is used, have the treatments been alternated?
(Explain)
____ 5. Are the treatments described in sufficient detail?
(Explain)
____ 6. If the treatments were administered by individuals other than the researcher, were those individuals properly trained and monitored?
(Explain)
____ 7. If each treatment group had a different person administering a treatment, did the researcher try to eliminate the personal effect?
(Explain)
____ 8. If treatments were self-administered, did the researcher check on treatment compliance?
(Explain)
____ 9. Except for differences in the treatments, were all other conditions the same in the experimental and control groups?
(Explain)
____ 10. Were the effects or outcomes of treatment evaluated by individuals who were not aware of the group assignment status?
(Explain)
____ 11. When appropriate, have the researchers considered possible demand characteristics?
(Explain)
____ 12. Is the setting for the experiment natural?
(Explain)
____ 13. Has the researcher distinguished between random selection and random assignment?
(Explain)
____ 14. Has the researcher considered attrition?
(Explain)
____ 15. Has the researcher used ethical and politically acceptable treatments?
(Explain)
____ 16. Overall, was the experiment properly conducted?
(Explain)
