Voluntary sample Study guides, Class notes & Summaries

A researcher wants to know if there was a relationship between student age and desire to complete a college degree. To answer this question, the researcher used a local community college as the sampling frame and then used stratified sampling to get a sample of students from 18 to 80 years old. Based on the information given, is there any potential bias in this study? a Yes, because the sampling frame does not match the intended population of the question. b Yes, because the sampling method...

CFA Level 1 - 101 Must Knows 368 Questions with Verified Answers Addition Rule of Probability - CORRECT ANSWER ADDITION: P(A or B) = P(A) + P(B) - P(AB) Roy's Safety First Criterion - CORRECT ANSWER Safety First Ratio = (E(R) - Rₜ) / σ Larger ratio is better If (Rₜ) is risk free rate, then it becomes Sharpe Ratio Sharpe Ratio - CORRECT ANSWER Sharpe Ratio = (E(R) - RFR) / σ Larger ratio is better If (Rt) is higher than RFR, then it becomes Safety First Ratio Centra...

NURS 220 Exam 3 Study Guide with Complete Solutions. Bowel Elimination Process of Bowel Elimination -Defecation: process of elimination of waste -Feces: semisolid mass of fiber, undigested food, inorganic material Anatomy and Physiology of the Gastrointestinal Tract -Mouth -Esophagus -Stomach -Small intestine: 3 Sections -duodenum, jejunum, ileum -Large intestine -cecum, colon, rectum -Anus -Defecation: dependent on sensory awareness, voluntary sphincter control -Functions P...

Psychology - the scientific study of behavior and mental processes Sigmund Freud - Austrian physician whose work focused on the unconscious causes of behavior and personality formation; founded psychoanalysis. experiment - A research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process independent variable - variable that is manipulated dependent variable - The measurable effect, outcome, or response in which the research ...

The overall plan proposed by an investigator for collecting and analyzing research data is called: correct answer: research design It is not a source of data: correct answer: Literature reviews At what point in the research process does the researcher often make decisions about data collection and the research sample? correct answer: While the study is in progress T/F Quantitative research usually involves a linear progression of research tasks. correct answer: True The purpose o...

AP Statistics Exam Study GuideHow is a population measured? - correct answer a population is measured by a census. How is a sample measured? - correct answer A sample is measured using a sampling technique, of which there are several. Why do we often measure samples instead of populations? - correct answer Collecting data from an entire population is often impossible, infeasible, or beyond the capability of the resources we have available. Samples can supply good estimates of the populatio...

Which of the following religious organizations seeks to maintain exclusiveness, claims to represent the true faith, and is most likely to have split off from a larger religious group? (A) Cult (B) Sect (C) Church (D) Denomination (E) Ecclesia - Answer- B. Sect Which of the following concepts seeks a consensus of opinion, or group conformity, by taking a narrow view of an issue? (A) Groupthink (B) Resocialization (C) Institutionalization (D) Mass hysteria (E) Resource mobilization - ...

WGU C955 - Module 6: Correlation & Regression Questions and Answers 100% AccurateWGU C955 - Module 6: Correlation & Regression Questions and Answers 100% AccurateWGU C955 - Module 6: Correlation & Regression Questions and Answers 100% Accurate A researcher wants to know if there was a relationship between student age and desire to complete a college degree. To answer this question, the researcher used a local community college as the sampling frame and then used stratified sampling to get a...

HESI A2 REVIEW TEST BANK Which of the following is a structure found in the upper respiratory? Pharynx. Golgi apparatus functions as? Process protein secretion. Synthesize carbs and glycoproteins. 1. How many carbs per gram do carbohydrates contain? 4. 2. When water molecules move across cell membrane from high to low concentration this process is called? Osmosis. 3. What is the result of carbon dioxide in the body? Body becomes more acidic. 4. What part of the body is the lower back? Lumbar. 5....

Psychology - Answer-Scientific Study of behavior and mental processes Goal of Description - Answer-What's Happening? To Whom? Where? What else? Advantage: Simple and Straightfoward Disadvantage: Doesn't cover relationships (Perceiving the Question step derives this goal) Goal of Prediction - Answer-Goes into connections/relationships Advantages: Relationships Disadvantages: No WHY? (Forming Hypotheses) Goal of Explanation - Answer-Why are things occurring?? Advantage: Most thorough u...