Stats/Methods I

1
Stats/Methods I

• JEOPARDY

2
Jeopardy
Research Strategies
Frequency Distributions
Descriptive Stats
Grab Bag
Validity
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
3
Validity--100

• The extent to which a researcher can generalize
  findings to the population
• answer

4
Validity--200

• The extent to which a researcher can draw a
  single, unambiguous conclusion from the results
• answer

5
Validity --300

• A study is said to be _______ when an extraneous
  variable is allowed to vary along with the
  independent variable.
• answer

6
Validity --400

• An ______ variable is a variable that is not
  being directly studied, but has the potential of
  changing along with the independent variable.
• answer

7
Validity -500

• Although tight control over extraneous variables
  gives you high levels of _____, it may result in
  low levels of _____.
• answer

8
Strategies Designs--100

• The goal of this research strategy is to describe
  a variable as it exists naturally.
• answer

9
Strategies Designs --200

• The goal of this research strategy is to describe
  the relationship between two variables as they
  naturally occur in the environment.
• answer

10
Strategies Designs --300

• A researcher joins a religious cult in order to
  observe the behaviors of the members. The
  researcher is using _____ observation.
• answer

11
Strategies Designs --400

• This type of research design can be useful for
  studying unusual clinical cases such as brain
  injuries.
• answer

12
Strategies Designs --500

• A researcher systematically varies the amount of
  caffeine in cola (0, 10, and 20 mg) and observes
  that his participants anxiety levels increase as
  caffeine amount increases. The 0-mg condition is
  called the __________.
• answer

13
Frequency Distributions--100

• The simplest frequency distribution consists of
  these two columns.
• answer

14
Frequency Distributions --200

• The shape of a _____ distribution is perfectly
  symmetrical.
• answer

15
Frequency Distributions --300

• This is the appropriate type of chart (or visual)
  for discrete data.
• answer

16
Frequency Distributions --400

• These two types of charts appropriately represent
  data from continuous variables.
• answer

17
Frequency Distributions --500

• A mathematical procedure for estimating a value
  that is located between two known values.
• answer

18
Descriptive Stats--100

• A statistical measure that determines a single
  value that accurately describes the typical score
  of a distribution.
• answer

19
Descriptive Stats--200

• This measure of central tendency is the score at
  the 50th percentile.
• answer

20
Descriptive Stats --300

• This measure of variability measures the average
  distance between scores and the mean.
• answer

21
Descriptive Stats --400

• This measures the average of the squared
  distances from the mean.
• answer

22
Descriptive Stats --500

• In order to calculate this, take the square root
  of the population variance.
• answer

23
Grab Bag--100

• The type of correlation that indicates an inverse
  relationship between two variables.
• answer

24
Grab Bag--200

• In statistical formulas, N represents
  ______________.
• answer

25
Grab Bag--300

• The only appropriate measure of central tendency
  for data measured on a nominal scale.
• answer

26
Grab Bag--400

• Percentile ranks correspond to the values in the
  ______ column of a frequency distribution
• answer

27
Grab Bag--500

• The sum of the deviations from the mean always
  equal this.
• answer

28
Validity--100

• A What is external validity?
• Back to board

29
Validity--200

• A What is internal validity?
• Back to board

30
Validity--300

• A What is confounded?
• Back to board

31
Validity--400

• A What is extraneous?
• Back to board

32
Validity--500

• A What is internal validity and external
  validity?
• Back to board

33
Strategies Designs--100

• A What is descriptive?
• Back to board

34
Strategies Designs--200

• A What is correlational?
• Back to board

35
Strategies Designs--300

• A What is participant observation?
• Back to board

36
Strategies Designs--400

• A What is the case study?
• Back to board

37
Strategies Designs--500

• A What is the placebo control group?
• Back to board

38
Frequency Distributions--100

• A What is score (X) and frequency (f) ?
• Back to board

39
Frequency Distributions--200

• A What is normal?
• Back to board

40
Frequency Distributions--300

• A What is a bar graph?
• Back to board

41
Frequency Distributions--400

• A What are histograms and frequency distribution
  polygons?
• Back to board

42
Frequency Distributions--500

• A What is interpolation?
• Back to board

43
Descriptive Stats--100

• A What is central tendency?
• Back to board

44
Descriptive Stats--200

• A What is the median?
• Back to board

45
Descriptive Stats--300

• A What is the standard deviation?
• Back to board

46
Descriptive Stats--400

• A What is the variance (or mean square)?
• Back to board

47
Descriptive Stats--500

• A What is population standard deviation?
• Back to board

48
Grab Bag--100

• A What is negative?
• Back to board

49
Grab Bag--200

• A What is the number of participants/scores in
  the population?
• Back to board

50
Grab Bag--300

• A What is the mode?
• Back to board

51
Grab Bag--400

• A What is cumulative percentage (c)?
• Back to board

52
Grab Bag--500

• A What is zero?
• Back to board