1. What is the probability of rolling a four in the gambling dice game of craps (given two six sided dice)? 3/36 or 8.33%. What is the probability that a player can roll a four 3 times in a row (assume that rolling the dice each time does not affect the outcome of the next roll)? 3/36 x 3/36 x 3/36 = 27/46656 = 3/5184 2. Population A and Population B both have a mean height of 70.0 inches with an SD of 6.0. A random sample of 30 people is picked from population A, and random sample of 50 people is selected from Population B. Which sample mean will probably yield a more accurate estimate of its population mean? Why? Despite, both Population A and Population having a mean height of 70.0 inches with an SD of 6.0, Population B will …show more content…
This situation is appropriate b. The independent variable is radiation treatment on throat cancer patients (after a low dose and then a high dose treatment); the dependent variable is white blood cell count. . This situation is inappropriate—after a low dose and then a high dose treatment are paired t-groups are not independent. c. The IV is infant birth weight (low vs. normal birth weight); the DV is number of days absent from school in first grade. Appropriate d. The IV is gender (male vs. female); the DV is compliance vs. noncompliance with a medication regimen. This situation is inappropriate—the DV of compliance vs. noncompliance is measured on a nominal scale e. The independent variable is married status (single vs. divorced vs. married); the dependent variable is happiness measured on a scale from 1 to 50. This situation is inappropriate—there are more than 2 groups 7. For which of the following situations is the dependent groups t-test appropriate (if not appropriate, why?) a. The IV is presence or absence of conversation directed to comatose patients (same patients with and without conversation); the DV is the patients’ intracranial pressure. This is situation is appropriate b. The IV is birth type (home vs. hospital); the DV is perceived functional ability of the patient 48 hours after surgery. This situation is inappropriate; home vs. hospital are independent variables c. The IV is time since incarceration (1 month vs.
1. Dependent Variable HR, SV, BP 2. Independent Variable level of activity 3. Controlled Variables age, gender
A researcher has designed a study to test the effects of different types of individual psycho-therapy on people's levels of anxiety. She has randomly placed people into one of three groups: a behavioral treatment group, a psycho-dynamic treatment group, or a no-treatment control group. She then measures people's level of anxiety after the treatment.
2. _C____ Divide your subjects in half. One group receives one treatment of the independent variable and the other group receives a different treatment of the independent variable. Subjects were all told they were going to see a video of a therapist's session after which they would rate the quality of the session. The groups differed in that the subjects in one group were told that prior evaluations indicated that the therapist was effective whereas subjects in the other group were told that the evaluations indicated the therapist was not effective. These different subjects were used for the two levels of the independent variable: subjects were in either the "effective therapist" or the "ineffective therapist" condition.
2. What data and method does the author use to evaluate this intervention? Why was that data and method used?
The amount of time the data collection was done over a year period. And information being collected on patients one month before entering the program and one month after leaving it.
The patient reports DCF was called against her by an anomoymous caller, who reports that the patient had drugs in the car in the present of her child. The patient was emotional and blames her boyfriend mother, who the patient reports has an vendetta against her. When asked by this writer for more details and the patient reponse was, " I do not know. She's mad that her son is not talking to her......His family does not treat him good." The patient signed a ROI in the event that DCF was to call. The patient does not want her UDS results to be revealed only her pressence in treatment and dose history.
Patient 1: The patient had a stroke and was unresponsive. I am on alert for a DVT due to the patient not being able to move or receive anticoagulants. Also, I was monitoring for signs of infection, respiratory changes, and the skin for pressure sores.
Yes. The number of subjects were close, 30 vs 33. The SD of the experimental group was on 0.58% higher than the control group while the mean was only 1.84% higher. Neither of these differences is significant.
What was the independent variable (or predictor variable) used in the experiment(s) (note: there could be multiple IVs)?
dividual was open and responsive throughout the counseling session. Individual answered questions asked by the clinician. Individual stated he was feeling fine. Ind stated, as a joke, he hasn't had any angry outburst since his nephews went back to Florida. in a serious tone, Individual disclosed, his angry outbursts has decreased because he got use to the idea that his grandfather has dementia and that things at home are not going to be the same. Ind shared that all of them are taking care of the grandfather, and that was bothering him, but not anymore. Ind also shared that in the past, he had frequent angry outbursts with his brother Shaun, but not anymore. When questioned about what exactly he did to change this situation, Ind answered they
Mrs Abu has had a considerable change in her vital signs (blood pressure lowered, her pulse is rapid, her respirations increased and temperature has dropped) form the baseline taken before surgery. These findings alone would be reported to the Registered Nurse and monitored. But because of the changes in vital sings, coupled with Mrs Abu reporting light-headedness and
Describe the study’s procedure (a sentence each about IVs and DVs plus a paragraph or two about the design). (30 points)
During my time on 3000 pediatrics I was a part of an IV insertion in a young seven year old patient which was quite traumatic. The nurse was assisted by the patient’s father and three other nurses to hold down the patient so the IV could be properly inserted. As I observed the procedure and watched the patient be incredibly resistant, it occurred to me this would never happen in the adult world; once a patient says no as an
These data would normally include mortality indicators for conditions or procedures for which the rate of mortality varies from one
In terms of independent variables, by referring to the Appendix, figure 1 reveals the summary of the sample; it also