Oops... I apologize for these errors...
---------------------------------
Corrections
for 3rd Edition of
p.xxi. Line 10. You can see the errors that have been found (and other stuff as well) at www.statisticsforpeople.com
p6. Thanks to Mike from Alaska who pointed ou that where he lives and teaches, the sun only rises and sets once!
p14. For those of you who have never seen a phone with a cord, this phone icon is what it looks like. Next edition - cell phone icon! Thanks to Mike.
p23. Tech Talk. Line 4. “mean of a mean),…” should be “mean of a sample),…”
p25. Line 5. “the median is same…” should be “the median is the same…”
p33. Remove one horizontal line below Score 1, Score 2 and Score 3
p38. The "S" should be S.
p87. Under Correlation “r2xy” should be “rxy”
p91. Line 8. “Chapter 13),” should be “Chapter 14).”
p102. Line 8. “That test consists…” should be “That Test Score consists…”
p108. The value in the equation “5.18” should be “5.17”
p114. Line 22. “current validity.” should be “criterion validity.”
p146. Second line from bottom. “1.70” should be “117”
p176. In formula 10.5, “90” should be “900”
p181. The numerator in the ES
formula should include the proper superscripts where they are squared.
p181. Line 6 from bottom. New url is http://www.uccs.edu/lbecker/psy590/escalc3.htm
p182. Line 6. “2.s” should be “2.”
p183. In Table 10.1, One sample Z test should be highlighted.
p185. Line 2. “(-.18)“ should be “(-.14)”
p186 Line 2. “1 to 10” should be “1 to 10 where the lower score the more anxiety.“ (Thanks Benny)
p191. Line 3. “10.1…” should be “11.1…”
p222. Table in center of page should be centered.
p226. Table at top should be as follows
|
|
Mean for Male |
Mean for Female |
|
High Impact |
73.70 |
79.40 |
|
Low Impact |
78.80 |
64.00 |
p230. In step 8. “Fixed” should be “Random”
p238. Line 16. “because it’s closest).” should be “because it’s most conservative).”
p253. Line 5. Y? should be Y’
p255. Line 1. “We’ll I get…” should be “We’ll get…”
p256. Line 6 from bottom. “Y’= -125” should be “Y’= -.125”
p258. Line 9. "When selecting a dependent variable" should read "When selecting an independent variable".
p261. Line 4 from bottom. “Which are the best predictor…” should be “Which is the best predictor…”
p266. In table, last column “(O-E)2/E” should be “(O-E)2/E”
p331. Under z-score of .25, area under the curve is 9.99, not .99
p371. 2nd line from the bottom, the equation X = 78 + (5.5 x 1.79) should be X = 78 + (5.5 x 1.29) and the correct answer is 85.095 or 85.10. Thanks to Vincent N.
p377. “2d. dependent” should be “2d. independent”
p384. 6a. “Here’s the SPSS output.” should read "The SPSS output for this problem is shown below." and "level of education" should read "years of experience".
P384. 6b should read and appear as follows…
Y’ = .959(X1) – 5.786(X2) – 1.839(X3) + 96.337
which, if we substitute the values for X1, X2 and X3, we get the following…
Y’ = .959(12) – 5.786(2) – 1.839(5) + 96.377
which produces a Chef’s score of…
64.062
|
|
||||||
|
Model |
Unstandardized Coefficients |
Standardized Coefficients |
t |
Sig. |
||
|
B |
Std. Error |
Beta |
||||
|
1 |
(Constant) |
96.377 |
10.068 |
|
9.573 |
.000 |
|
Years_Exp |
.959 |
.551 |
.671 |
1.741 |
.102 |
|
|
Level_Ed |
-5.786 |
3.935 |
-.352 |
-1.470 |
.162 |
|
|
Number_Positions |
-1.839 |
1.412 |
-.489 |
-1.303 |
.212 |
|
|
|
|
|
|
|
||
Note that
none of the predictors, on their own are significant.
p385. “3.
With 2 degrees” should be “With 2 degrees”
p385. “Here’s the worksheet” should be “3. Here’s the worksheet”
Corrections
for Online Exercises for
Corrections for 1st Edition of Test & Measurements for People Who (Think They) Hate Tests & Measurements
Many thanks (and more to come) to
* Sara Agnew,
Breanna Johnson, and Kristopher Koonse, and especially
Graham E. Higgs, Associate Professor of Psychology at
Columbia College
of Missouri
* Valerie Shutem Ed Psych and Learning Systems, Florida State University
Interrater Reliability = Number of Agreements/Number of
Possible Agreements (Thanks to Rick W. and Kim O.)
p68. Under the Criterion Validity heading, paragraph
2 reads: If the criterion
is taking place in the future, we talk about predictive
concurrent validity or just
predictive validity.
The word, concurrent in this sentence should be criterion
p148. Under
Computing the Difficulty Index, first sentence, should read…
The difficulty index tells us how many people got that
the item correct.
p149. Under Computing the Discrimination Index, half
way down the page.
If we plug in the number to the above formula, we find
that the discrimination
level for Item 14 is 0.64. Also, the small d should replace the capital D
at the
beginning of the formula.
p276. Third paragraph from the bottom, should read... Career development isn’t so finite a process that one test, no matter how good it
is, will provide all the
answers. So, should you take more take more than one
vocational test? Sure – if
you have the time and money, what could it hurt?
---------------------------------
Corrections
for 2nd Edition of
The second edition of the Excel book just came out and I welcome your comments and corrections. And, with this set of corrections, you can see who gets credit for the correction. Thanks!
p61. Fourth full paragraph should read as follows, "It's also fair to say that the mean i is a more precise measure than the median, and the mode is a less precise measure than the median." (Thanks to Wendy O.)
p97. In Figure 4.15, Distribution C is platykurtic compared to Distribution B Distribution A is leptokurtic compared to Distribution B. (Thanks to Janice).
p118 (middle of page), when the numbers are plugged into the formula, it is written
as (10 * 247) - (54 - 43). It should be be 54 x 43 according to the formula. (Thanks
to Dr. Richard W.).
p269. Chapter 13. There are some inaccuracies in my distinction between different types of ANOVAs, well pointed out by Dr. Rick Froman. Send me a note if you want to see the complete text of hte valuable points he makes. (Thank to Rick).
Figures 12.1 and 13.1. The word "related" should be "repeated".
I'm working on the second edition of the Tests and Measurements book and it should be available in early 2011. More exercises, sample tests and more will be in the new edition.
---------------------------------
Corrections
for 4rd Edition of
p45. At the end of the second full paragraph (“If you take the standard…”), “Then the variance would be 2.342 or 5.48.” should be “Then the variance would be 2.342 or 5.48.” [Thanks to Michelle I., James P., and especially Thomas H.]
p51. In the second paragraph, “such as = 10 and s = 3” should read as “such as the mean = 3 and the s = 3. [Thanks to Sherry T].
p71. Correct Figure 4.15 is shown below.
[Thanks to Patrick A. and his students]
p74. #2 The correct frequency distribution is shown below.
| CI | Frequency |
| 50-59 | 6 |
| 40-49 | 8 |
| 30-39 | 5 |
| 20-29 | 9 |
| 10-19 | 8 |
| 0-9 | 3 |
p82. Formula 5.3 should have the numerator as 148, not 149 (2470 - 2322). [Thanks to Stephen L. ]
p122. Section "Validity and Reliability", second paragraph form the bottom should be, "This chapter is important because you need to know something about reliability and the validity of the instruments . . . ." [Thanks to Steven L.]
p123. Sixth line down should be, "For example, if the reliability coefficient for a test of mechanical aptitude is .87, the validity coefficient can be no larger than .93 (which is the square root of .87). [Thanks to Steven L.]
p167. Table 9.1. A happy face should appear under numeral 1 and under numeral 4 in the table and a sad face under 2 and 3.
p174. At the bottom of the chart, "related" should be "repeated".
P179. p3c. “The null hypothesis…” should be replaced by “The research hypothesis." [Thanks to Heath]
p183. In Table 10.1, One sample Z test should be highlighted. [Thanks to Tom H.]
p188. q4. Ignore this question. It will be replaced in the 5th edition.
p192. In formula 11.1, in the denominator, under the radical, the second quantity that is being multiplied by the variance of data set 2, should be n2. [Thanks to Michelle I. and Sherry T.]
p199. In Tech Talk, sixth line, "numerator" should be "denominator". [Thanks to Steven L.]
p200. On step 1, "there is a column for group..." should be "there is a column for each group..."
p202. In Figure 11.5, the mean for Group 1 is 5.43. [Thanks to Tarrah]
p204. Question 3. s2 should be as
follows… [Special thanks to Murat H.
and Dawna W.]
3a. s1 = 2.45 s2 =
3.16
3b. s1 = 2.06 s2 =
2.59
3c. s1 = 2.45 s2 = 2.35
p215. First full paragraph, "nondirectional" should be "directional" [Thanks to Steven L.]
P258-259. The
degrees of freedom should be 28 and not 27, so…
Last two paragraphs
on page 258…
“n-2,
or 29-2=27” should be “n-2, or 30-2=28”
“Using
the number (27),”, should be “Using this number (28),”
“with
27” should be “with 28”
Section heading
on page 259…
“So How Do I Interpret r(27)=.393,
p<.05?” should be “So
How Do I Interpret r(28)=.393, p<.05?”
Second bullet
point, “27 is the number” should be “28 is the number”
[Thanks to Beau]
p261. Second full paragraph, reads as "Here, we are using the data set named Chapter 15 Data Set 1, which has two measures of quality—one of marriage (time spent together in one of three categories) and one of parent-child relationships (strength of affection)."should read as "Here, we are using the data set named Chapter 15 Data Set 1, which has two measures of quality—one of marriage (time spent together in one of three categories with the value of 1 indicating a lower quality than a value of 3) and one of parent-child relationships (strength of affection with a higher value indicating more affection)." [Thanks to anonymous]
p274. last line reads
“predict Y and Y…” and should read “predict Y and Y’… [Thanks to Toby A.]
p275. First line under the
equation reads "…predicted
value of Y (or Y)…" and should read the "…predicted value of Y (or
Y')…" [Thanks to Toby A.]
p334. "Defining Variable labels" should read as "Defining Value Labels" [Thanks to Patrick A.]
p351.Please see new valyues for Table B.1 as below...
z-score
Area…
0.50
19.15
0.51
19.50
0.52
19.85
0.53
20.19
0.54
20.54
0.55
20.88
0.56
21.23
0.57
21.57
0.58
21.90
0.59
22.24
0.60
22.57
0.61
22.91
0.62
23.24
0.63
23.57
0.64
23.89
0.65
24.22
0.66
24.54
| Test 1 | Test 2 | Test 3 | |
| Mean | 49 | 50.1 | 49.3 |
| Median | 48 | 51.5 | 2 |
| Mode | 48 | 53 | 52 |
| Range | 5 | 9 | 10 |
| Stab dev | 1.41 | 2.69 | 3.94 |
| Variance | 2 | 7.21 | 15.57 |
p399. Answer to question 7a should be .8, not 8. [Thanks to Bonnie F.]
p404. Answers to question 5, chapter 8. The raw score for the z score of 1.8 is 84.4, and the book says it is 84.1; the raw score for the z score of -0.5 is 66.00, and the book says 65.7; the raw score for the z score of 1.7 is 83.6, and the book says 83.4. [Thanks to Beau]
p400. Q3. The correlation is .138, not .139 [Thanks to Hugh]
p410. "write out in a null..." should be "write out words in a research...?
p411. Answers to item #3 should be as follows [Thanks to Murat H. and Dawna W.]
a. t (18) = 1.58
b. t (46) = .88
c. t (32) = 2.43
Y’ = .959(X1) – 5.786(X2) – 1.839(X3) + 96.337
which, if we substitute the values for X1, X2 and X3, we get the following…
Y’ = .959(12) – 5.786(2) – 1.839(5) + 96.377
which produces a Chef’s score of…
64.062
|
|
||||||
|
Model |
Unstandardized Coefficients |
Standardized Coefficients |
t |
Sig. |
||
|
B |
Std. Error |
Beta |
||||
|
1 |
(Constant) |
96.377 |
10.068 |
|
9.573 |
.000 |
|
Years_Exp |
.959 |
.551 |
.671 |
1.741 |
.102 |
|
|
Level_Ed |
-5.786 |
3.935 |
-.352 |
-1.470 |
.162 |
|
|
Number_Positions |
-1.839 |
1.412 |
-.489 |
-1.303 |
.212 |
|
|
|
|
|
|
|
||
Note that none of the predictors, on their own are significant.
