FIU CCJ4700 Quiz 1 LATEST 2022

Question 1In __________, the goal of a researcher is to infer theoretical concepts and patterns from observed data.

  inductive research

  deductive research

  logical research

  Rational research

 Question 2Theories are observed patterns of phenomena

  True

  False

 Question 3___________ seeks explanations of observed phenomena, problems, or behaviors.

  Explanatory research

  Exploratory research

  Descriptive research

  Scientific research

 Question 4Explanatory research seeks explanations of observed phenomena, problems, or behaviors.

  True

  False

 Question 5 Criminal Justice related research constitutes as ____________ science research.

  collective

  natural

  basic

  social

 Question 6In science, theories and observations can exist without each other.

  True

  False

 Question 7Exploratory research is often conducted in old areas of inquiry.

  True

  False

 Question 8__________are systematic explanations of the underlying phenomenon or behavior.

  Newton's First Law

  Scientific knowledge

  Theories

  Laws

 Question 9What is the mode of the following data: 57 males and 43 females?

  females   43

  males   57

 Question 10Your current exam mean is 93.2. If you receive an 87 on the next exam, this will have the effect of ______.

  cannot determine

  having no effect on your mean

  increasing your mean

  decreasing your mean

 Question 11Market researchers sent out a survey to college students in Ohio to assess their preferences regarding three different brands of honey. When examining the average preference of the respondents, which measure of central tendency is most likely to be used to describe them?

  weighted mean

  mode

  median

  mean

 Question 12When there is an even number of scores, how is the median calculated?

  Use the larger of the two middle scores.

  The median cannot be calculated in this situation.

  It is the average of the two middle scores.

  Use the smaller of the two middle scores.

 Question 13

Which measure of central tendency is also known as the midpoint for a set of scores?

  mode

  sum

  mean

  median

 Question 14Nominal levels of measurements have categories that are not mutually exclusive.

  True

 

  False

 Question 15Your current exam mean is 97.2. If you receive a 99 on the next exam, what will happen to your mean?

  It has no effect.

  It will increase.

  It will decrease

  It cannot be determined.

 Question 16Both the standard deviation and the variance are measures of variability, also called dispersion or spread.

  True

  False

 Question 17What is the range for the following set of scores: 117, 249, 326, 47, 442?

  117

  326

  395

  442

 Question 18The variance of a group of scores is 4. What is the standard deviation?

  2

  16

  3.5

  18

 Question 19Unbiased estimates are considered to be less conservative estimates.

  True

  False

 Question 20In the formula for computing the range, what does the letter l represent?

  highest score

  variability

  range

  lowest score

 Question 21If Σ(X - M)2 = 235, and n = 29, what is s2?

  43.64

  8.10

  8.39

  2.90

 Question 22When calculating the standard deviation, what must be done in order to obtain an unbiased estimate?

  subtract 1 from X

  add 1 to X

  subtract 1 from n

  add 1 to n

 Question 23What is the size of the class interval in a distribution of 50 scores with 10 intervals?

  50

  25

  10

  5

 Question 24What is a graphical representation of a frequency distribution?

  histogram

  bar chart

  cumulative frequency distribution

  frequency distribution

 Question 25A graph should communicate only one idea.

  True

  False

 Question 26What is the central point of the class interval called?

  mode

  histogram

  midpoint

  median

 Question 27Which type of data illustration method is being used when tallying and representing how often certain scores occur?

  polygon

  frequency distribution

  class interval

  histogram

 Question 28All but which of the following are examples of a chart or graph?

  ogive

  frequency polygon

  cumulative frequency distribution

  variation

 Question 29Using every feature a computer program has to make charts likely results in which of the following?

  chart junk

  illustration

  group think

  persuasion

 Question 30To select a class interval, compute the range and ______ the number of intervals you want to use.

  multiply by

  divide by

  subtract

  add