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NCE Study > Research and Program evaluation 2 > Flashcards

Research and Program evaluation 2 Flashcards

1
Q

more than one level of a SINGLE IV - which test will use?

A

ANOVA- one-way analysis of variance

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2
Q

Two IVs require which test?

A

2 way ANOVA

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3
Q

To complete a t test you would consult ….

A

tabled value of t

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4
Q

To see if significant differences exist in an ANOVA you would consult…..

A

a table for F values

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5
Q

group comparison tests such as Turkey’s, Duncan’s and Scheffe’s are called…..

A

post hoc

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6
Q

Posteriori tests for ANOVA calculations. What is posteriori?

A

Post hoc

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7
Q

Does correlation mean causal?- just because something correlates does it mean that it causes it.??

A

Correlation does not mean causal

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8
Q

Does correlational research yield cause -effect data?

A

No it is Quasi experimental

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9
Q

When the correlational data describe the nature of two variables the term__________ is utilized.

A

Bivariate- and more than two the term Multivariate is used.

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10
Q

N=1 is an intensive experimental design. The first task would be to _______

A

take a baseline measure

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11
Q

If I were a behaviorist and wanted to discover my client’s score I would

A

utilize the N=1 , which is for one client

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12
Q

multiple baseline design means…

A

when a researcher employs more than one target behavior

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13
Q

in correlation study a perfect relationship exists at what point on the graph?

A

1.0 or -1. 0 it is called a “linear relationship”

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14
Q

correlation is a ___________ statistic, which indicates the degree of “linear relationship”

A

descriptive

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15
Q

pearson r is the most common correlation coefficient uses I and R which mean

A

interval and ratio-

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16
Q

spearman Rho is an

A

The Spearman’s rank-order correlation is the nonparametric version of the Pearson

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17
Q

The guassian curve is what ?

A

bell shaped normal curve for the mean, median, and mode

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18
Q

The normal curve for the mean, median, and mode all fall precisely in the middle of the curve is what shaped?

A

bell shaped

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19
Q

Curves that are not symmetrical but asymmetrical are called

A

skewed distributions

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20
Q

what is the 68-95-99.7 rule?

A

68% of scores fall within plus/minus 1 standard deviation, 95% within 2 SDs of the mean, and 99.7 within 3 SDs of the mean. ALMOST all the scores will fall between 3 SDs of the mean

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21
Q

68% of scores fall within plus/minus 1 standard deviation, 95% within 2 SDs of the mean, and 99.7 within 3 SDs of the mean. ALMOST all the scores will fall between 3 SDs of the mean- This curve is what type?

A

Normal curve- Gaussian curve

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22
Q

bimodal, unimodal and multimodal are examples of what?

A

graphical representations of distributions and amount

23
Q

The exam provides a list of test scores such as

1, 10, 19, 19, 1, 10, 19, 19, 6, 54 . The mode is what?

A

19 because it appears the most frequent

24
Q

1, 10, 19, 19, 1, 10, 19, 19, 6, 54- the mean would be?

A

15.8 to get this add all the numbers together and divide by how many numbers there are.

25
Q

1, 10, 19, 19, 1, 10, 19, 19, 6, 54 the median would be?

A

14.5 it is all the numbers put in order and then the middle number- if even amount of numbers add the two middle and divide by 2

26
Q

distance between the largest and smallest scores is called the

A

range

27
Q

1, 10, 19, 19, 1, 10, 19, 19, 6, 54 the range of these is?

A

53- to get this take 54 the largest and subtract the smallest score 1

28
Q

point of maximum concentration is called the

A

mode

29
Q

the MOST useful measure of central tendency is the_________ but if the distribution is plagued with extreme scores then the ________is the statistic of choice, and the best for skewed distributions .

A

a. mean / x with a bar over it-

b. median

30
Q

the three measures of central tendency are __

A

mean mode and median

31
Q

the least important measure of central tendency…..

A

mode memory device: maximode central

32
Q

when there are extreme scores- we say the distribution is _________

A

skewed

33
Q

The middle score when the data are arranged from highest to lowest

A

median

34
Q

add up all the scores and divide by how many scores gets the…

A

mean

35
Q

the score used most is the….

A

mode

36
Q

A counselor wants to ferret out the effects of more than one IV- she will use a _________design

a. pearson r
b. factorial
c. spearman rank rho
d. a and c

A

factorial experiements use several variables - they include two or more IVs sometimes called levels

37
Q

A raw score of 82 calculates to mean what?

A

only 82 of the items were answered correctly

38
Q

percentiles, t-scores, z-scores, stanines or standard deviations is an example of what type of score?

A

standard score

39
Q

standard score allows you to analyze the data in ______to the properties of normal bell shaped curve.

A

relation

40
Q

a distribution with class intervals can be graphically displayed via a bar graph also called a__________

A

histogram

41
Q

a horizontal line under the a frequency distribution is known as the_________

A

x axis also called the abiscissa

42
Q

the X axis plots which variable’s scores?

A

the independent variable

43
Q

which direction does the x axis take:

vertical or horizontal?

A

horizontal

44
Q

the Y axis plots which variable’s scores?

A

the dependent variable

45
Q

the line which runs vertical is which axis?

A

the Y also called the ordinate-

46
Q

If you are plotting the average weights of adult men and women how many points of concentration would be on the curve? And what kind of a distribution is it?

A

2- because of 2 IVs and Bimodal

47
Q

John Henry effect does what?

A

a threat to internal validity due to compensatory rivalry of a comparison group

48
Q

At what time might the range of scores on a test increase?

A

when the sample size is larger

49
Q

variance is a measure of dispersion of scores around the measure of _________

A

central tendency / Variance is the SD squared.

50
Q

a popular IQ test has a standard deviation of 15. A counselor would expect that if the mean IQ score is 100 then what percentage would of people who take the test will score between 85- 115?

A

68%

51
Q

A counselor would expect that if the mean IQ score is 100 then a person taking the test with a score of 122 - what range would fall within?

A

plus or minus 2 SD of the mean

and if everyone scored the same on the test it would be 0 SD everyone would be right at the mean

52
Q

Z scores are the same as __________.

A

standard deviations

53
Q

a standard score is same as __________

A

z score

54
Q

z score of plus 1 SD would be what percentage of the population?

A

34%- half of 68% which is the percentage of how many fall into the SD of 1.

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