O it has low external validity Question 10 Choose All correct answers Science Onon-falsifiable O always generate straightforward answers is based on parsimony produces nuanced results 2 pts == Guidelines C Webcam 0 Question 11 2 pts When Dr. Fauci was asked about the effectiveness of anti-malaria drugs in treatment of patients with COVID-19, he responded that the evidence didn't come from randomized control trials, where patients would be randomly assigned to two or more treatment conditions (anti-malaria drug would be just one of the conditions). What essential elements are missing from these studies? Choose All correct answers. systematic observation random assignement to groups dependent variable control condition Question 9 What is the strength of a naturalistic observation? O it can test cause and effect relationship O it has high external validity O it doesn't require any statistical analyses O it has low external validity Question 10 2 pts ses/460159/quizzes/11 Question 8 take Find the right name for the picture below: Paired Samples Test 2 pts Paired Differences 95% Confidence Interval of the Difference Mean Std. Deviation Std. Error Mean Lower Upper df Pair 1 romantic_1-romantic_2 -1.46667 3.70071 .95552 -3.51605 58272 -1.535 14 Pair 2 anti_1 - anti_2 1.06667 2.73774 70688 - 44945 2.58278 1.509 14 O results of an inferential statistical test data results of the descriptive statistics O regression D Question 12 What is one efficient way to control extraneous variables methodologically in an experiment? O placebo O random assignment to conditions extraneous variables cannot be controlled O random sample selection 2 pts