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HSCI 190 EXAM | 434 QUESTIONS | WITH COMPLETE SOLUTIONS!!
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HSCI 190 EXAM | 434 QUESTIONS | WITH COMPLETE SOLUTIONS!!
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HSCI 190 EXAM | 434QUESTIONS | WITH
COMPLETE
SOLUTIONS!!
HSCI 190
Evatee 10/18/24 HSCI 190
,HSCI 190 EXAM | 434 QUESTIONS | WITH
COMPLETE SOLUTIONS!!
What does PPDAC stand for? Answer - Problem, Plan, Data, Analysis,
Conclusions
Problem in PPDAC: Answer - What is the problem or question?
Plan in PPDAC Answer - what info do you need to answer the question?
Data in PPDAC Answer - collecting high quality information
Analysis in PPDAC Answer - Sorting, graphing, and running statistical tests
Conclusions in PPDAC Answer - Interpretation, communication, and generating
new ideas
Why was the Wakefield et al. study poorly done? Answer - Because it
concluded the MMR vaccine was correlated to autism with questionable
methodology
Who was Harold Shipman and what did he do? Answer - A doctor in the 70s,
killed people on house visits by giving them diamorphine
what are the two subcategories of categorical data Answer - nominal, ordinal
,What is another name for categorical data Answer - discrete data
What is another name for scale data Answer - continuous data
What are the two subcategories of scale data? Answer - interval, ratio
Information that is grouped into unordered categories and the assigned
number is meaningless Answer - nominal data
information is grouped into ordered categories and the number assigned
means something Answer - ordinal data
can calculations be performed on categorical data? Answer - no
This type of data is qualitative Answer - categorical
this type of data is quantitative Answer - scale
a numerical measure on a scale where each point is equal distance from one
another and there is no true 0 Answer - interval data
a numerical measurement where the numbers are not restricted to certain
values and there is a true 0 Answer - ratio data
this type of frequency distribution shows raw data Answer - absolute
frequency
, this type of frequency distribution shows a proportion or percentage of values
that fall within a given interval Answer - relative frequency
formula for relative frequency is Answer - absolute frequency / sum of all
frequencies (x 100 for percentage)
the 'index' in mathematical notations, denoted by 'i', tells you Answer - the
lower limit of the summation (starting value)
Only measure of central tendency that can be used with nominal data Answer
- mode
measures of central tendency for ordinal data Answer - mean, median, or
mode (but mean is sometimes less useful)
measures of central tendency for scale data Answer - mean, median, or mode
describes the difference between the minimum and maximum value in a data
set Answer - range
dividing the data set into quartiles so you can identify the ranges that fall
within 50% of the mean or median of a data set Answer - IQR
formula to calculate IQR Answer - Q3 - Q1
this can be calculated by identifying the distance between each data point and
the mean, squaring this value, and then averaging the distances Answer -
variance (s^2)
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