The scientific method isa. rationalizing a large body of observations.b. testing predictions repeatedly.c. followed in the same manner in all investigations.d. testing a series of “either/or” predictions.

Question 2.

Which of the following threats to internal validity can apply even when a control group is used?a.  Attrition b.  History threats c.  Instrumentation threats d.  Demand characteristics     D is the answer to this question but why? It looks to me all of them can apply. why a,b,c cannot apply? (Pleae type your answer. No handwriting)

38. which of the following pieces id information is NOT found within the discussions of a scientific method. 1. compare findings to previous research 2. significance of the work either in a related field or in future experiments 3. discusses any similarities or inconsistencies in research 4. interpretation of the results 5. experimental details such as the number and types of subjects involved. 78. This variable must be measurable: 1. Controlled variable 2. Independent variable 3. Dependent variable 4. any variable

a. 20. In science, a theory is defined as a. a speculative guess. b. a hypothesis. C. an explanation that is well documented and consistent with the evidence. d. a description of a phenomenon for which there is no explanation. e. a personal conviction.

which qualifies as “scientific evidence”?       It must have been validated and proven to be useful in court.   It must be free of any opportunity for bias and be repeatable.   It must be beyond a typical juror’s ability to understand and it must be relevant to the case.   It must be generally accepted by the relevant scientific community and have a known error rate.   It must be based on an approach that has been published in a peer-reviewed journal and have been validated.

pertains to how closely a group of measurements agree with each other while pertains to how closely the measured values agree with the true or correct value. accuracy, precision mean, median none of the above O precision, accuracy

The Scientific Method.  Place the following "6 steps" in the proper order? - have experiment replicated by others to confirm or challenge your published findings - hypothesize - craft an experiment - repeat the experiment multiple times - conduct an experiment - publish findings