Statistics

Description

Quiz on Statistics, created by Ashley Churchill on 20/01/2017.
Ashley Churchill
Quiz by Ashley Churchill, updated more than 1 year ago
Ashley Churchill
Created by Ashley Churchill about 7 years ago
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Resource summary

Question 1

Question
What are the characteristics of an observational study?
Answer
  • Investigators observe subjects
  • Investigators measure variables of interest
  • Investigators control variables of interest

Question 2

Question
Descriptive Statistics...
Answer
  • Consists of methods for organizing and summarizing information.
  • Consists of methods for drawing and measuring the reliability of conclusions about a population based on information obtained from a sample of a population.
  • Includes the calculation of various descriptive measures such as averages, measures of variation, and percentiles.
  • Appeared after Inferential Statistics, historically.
  • Is interrelated with Inferential Statistics
  • Appeared before Inferential Statistics, historically.
  • Includes the construction of graphs, charts

Question 3

Question
hello
Answer
  • l
  • l5

Question 4

Question
A confounding variable is related both to group membership and to the outcome of interest. Its presence makes it hard to establish the outcome as being a direct consequence of group membership.
Answer
  • True
  • False
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