Research and Program evaluation 2

Question 1

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

Answer 1

ANOVA- one-way analysis of variance

Question 2

Two IVs require which test?

Answer 2

2 way ANOVA

Question 3

To complete a t test you would consult ….

Answer 3

tabled value of t

Question 4

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

Answer 4

a table for F values

Question 5

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

Answer 5

post hoc

Question 6

Posteriori tests for ANOVA calculations. What is posteriori?

Answer 6

Post hoc

Question 7

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

Answer 7

Correlation does not mean causal

Question 8

Does correlational research yield cause -effect data?

Answer 8

No it is Quasi experimental

Question 9

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

Answer 9

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

Question 10

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

Answer 10

take a baseline measure

Question 11

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

Answer 11

utilize the N=1 , which is for one client

Question 12

multiple baseline design means…

Answer 12

when a researcher employs more than one target behavior

Question 13

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

Answer 13

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

Question 14

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

Answer 14

descriptive

Question 15

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

Answer 15

interval and ratio-

Question 16

spearman Rho is an

Answer 16

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

Question 17

The guassian curve is what ?

Answer 17

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

Question 18

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

Answer 18

bell shaped

Question 19

Curves that are not symmetrical but asymmetrical are called

Answer 19

skewed distributions

Question 20

what is the 68-95-99.7 rule?

Answer 20

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

Question 21

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?

Answer 21

Normal curve- Gaussian curve

Question 22

bimodal, unimodal and multimodal are examples of what?

Answer 22

graphical representations of distributions and amount

Question 23

The exam provides a list of test scores such as

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

Answer 23

19 because it appears the most frequent

Question 24

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

Answer 24

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

Question 25

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

Answer 25

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

Question 26

distance between the largest and smallest scores is called the

Answer 26

range

Question 27

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

Answer 27

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

Question 28

point of maximum concentration is called the

Answer 28

mode

Question 29

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 .

Answer 29

a. mean / x with a bar over it- | b. median

Question 30

the three measures of central tendency are __

Answer 30

mean mode and median

Question 31

the least important measure of central tendency.....

Answer 31

mode memory device: maximode central

Question 32

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

Answer 32

skewed

Question 33

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

Answer 33

median

Question 34

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

Answer 34

mean

Question 35

the score used most is the....

Answer 35

mode

Question 36

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

Answer 36

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

Question 37

A raw score of 82 calculates to mean what?

Answer 37

only 82 of the items were answered correctly

Question 38

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

Answer 38

standard score

Question 39

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

Answer 39

relation

Question 40

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

Answer 40

histogram

Question 41

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

Answer 41

x axis also called the abiscissa

Question 42

the X axis plots which variable's scores?

Answer 42

the independent variable

Question 43

which direction does the x axis take: | vertical or horizontal?

Answer 43

horizontal

Question 44

the Y axis plots which variable's scores?

Answer 44

the dependent variable

Question 45

the line which runs vertical is which axis?

Answer 45

the Y also called the ordinate-

Question 46

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?

Answer 46

2- because of 2 IVs and Bimodal

Question 47

John Henry effect does what?

Answer 47

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

Question 48

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

Answer 48

when the sample size is larger

Question 49

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

Answer 49

central tendency / Variance is the SD squared.

Question 50

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?

Answer 50

68%

Question 51

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?

Answer 51

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

Question 52

Z scores are the same as __________.

Answer 52

standard deviations

Question 53

a standard score is same as __________

Answer 53

z score

Question 54

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

Answer 54

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