StatsMethods II

1
Stats/Methods II

• JEOPARDY

2
Jeopardy
Hypothesis Testing
Between Subjects
Within Subjects
Experiments
Misc.
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200
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Hypothesis Testing--100

• Concluding there is a difference in the
  population when, in reality, there is no
  difference.
• answer

4
Hypothesis Testing--200

• Detecting a difference in the population when a
  difference really exists.
• answer

5
Hypothesis Testing--300

• Concluding theres no difference when, in fact,
  a difference exists
• answer

6
Hypothesis Testing--400

• This is the ratio of the mean difference to the
  population standard deviation. The bigger the
  result, the better
• answer

7
Hypothesis Testing--500

• The value of the test statistic is not a good
  indicator of effect size because it is biased by
• answer

8
Between Subjects--100

• Another name for a between-subjects design.
• answer

9
Between Subjects--200

• In order to attribute differences between groups
  to treatment effects, we must prevent ____ ______
  from becoming a confound.
• Equality please.
• answer

10
Between Subjects--300

• In general, a t-test can be expressed as this
  ratio.
• answer

11
Between Subjects--400

• _____ ______ is the most popular method used to
  equally distribute potential confounding
  variables across treatment conditions.
• answer

12
Between Subjects--500

• Two disadvantages of the between-subjects design.
• answer

13
Within Subjects--100

• If 15 people each contribute two scores to your
  study, then n ___?
• answer

14
Within Subjects--200

• A variant of the repeated samples design in which
  great care is taken to minimize individual
  differences between two participantsone is then
  assigned to treatment 1 and the other is assigned
  to treatment 2.
• answer

15
Within Subjects--300

• What does X2 X1 yield in a within-subjects
  design?
• answer

16
Within Subjects--400

• Do this to deal with carryover effects and
  progressive error.
• answer

17
Within Subjects--500

• A within-subjects design is very useful to study
  changes in a particular individual _____ ____.
• answer

18
Experiments--100

• The no-treatment condition in an experiment.
• answer

19
Experiments--200

• An extraneous variable becomes a ____ ____ only
  if it systematically influences the dependent
  variable.
• answer

20
Experiments--300

• Directly measures whether the IV has the intended
  effect on the participant.
• answer

21
Experiments--400

• The 2 interpretation problems that exist in
  correlational research but are eliminated in
  experimental research.
• answer

22
Experiments--500

• Two active (and often laborious) ways to control
  extraneous variables.
• answer

23
Misc.--100

• The critical region for z is determined by
  consulting this.
• answer

24
Misc.--200

• This is used to compare a sample to a population
  when the population standard deviation is NOT
  known.
• answer

25
Misc.--300

• An independent groups design has 2 treatment
  conditions and 18 df. The total number of
  subjects must equal ___.
• answer

26
Misc.--400

• Using a less diverse population will directly
  decrease this measure.
• answer

27
Misc.--500

• Increasing the intensity of the experimental
  procedure should increase this.
• answer

28
Hypothesis Testing--100

• A What is Type I error?
• Back to board

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Hypothesis Testing--200

• A What is power?
• Back to board

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Hypothesis Testing--300

• A What is Type II error?
• Back to board

31
Hypothesis Testing--400

• A What is Cohens d (effect size)?
• Back to board

32
Hypothesis Testing--500

• A What is the number of participants in the
  sample?
• Back to board

33
Between Subjects--100

• A What is an independent measures design?
• Back to board

34
Between Subjects--200

• A What are individual differences?
• Back to board

35
Between Subjects--300

• A What is obtained (observed) difference over
  difference expected by chance alone?
• Back to board

36
Between Subjects--400

• A What is random assignment?
• Back to board

37
Between Subjects--500

• A What are (1) need large N and (2) each score
  is from a different person (individual
  differences)?
• Back to board

38
Within Subjects--100

• A What is 15?
• Back to board

39
Within Subjects--200

• A What is a matched pairs or related samples
  design?
• Back to board

40
Within Subjects--300

• A What is a difference score?
• Back to board

41
Within Subjects--400

• A What is counterbalance the order of
  treatments?
• Back to board

42
Within Subjects--500

• A What is across time?
• Back to board

43
Experiments--100

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

44
Experiments--200

• A What is a confounding variable?
• Back to board

45
Experiments--300

• A What is a manipulation check?
• Back to board

46
Experiments--400

• A What are the (1) directionality problem and
  (2) the third-variable problem?
• Back to board

47
Experiments--500

• A What are (1) holding constant and (2) matching
  across treatment conditions?
• Back to board

48
Misc.--100

• A What is the unit normal table?
• Back to board

49
Misc.--200

• A What is a t-test?
• Back to board

50
Misc.--300

• A What is 20?
• Back to board

51
Misc.--400

• A What is standard deviation?
• Back to board

52
Misc.--500

• A What is effect size?
• Back to board