Cognitive predictors of a common multitasking ability: Contributions from working memory, attention control, and fluid intelligence

Journal of Experimental Psychology: General

Volumn 145, Issue 11, 2016, Pages 1473-1492

  Redick, Thomas S ^a   Shipstead, Zach ^b   Meier, Matthew E ^c   Montroy, Janelle J ^d   Hicks, Kenny L ^e   Unsworth, Nash ^f   Kane, Michael J ^g   Hambrick, D Zachary ^h,i   Engle, Randall W ^e  

^a PURDUE UNIVERSITY   (United States)

^b ARIZONA STATE UNIVERSITY   (United States)

^c WESTERN CAROLINA UNIVERSITY   (United States)

^d UNIVERSITY OF TEXAS MEDICAL SCHOOL   (United States)

^e GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

^f UNIVERSITY OF OREGON   (United States)

^g UNIVERSITY OF NORTH CAROLINA AT GREENSBORO   (United States)

^h MICHIGAN STATE UNIVERSITY   (United States)

ⁱ ALMA COLLEGE   (United States)

Author keywords

Attention; Fluid intelligence; Multitasking; Working memory

Indexed keywords

ADOLESCENT; ADULT; APTITUDE; ATTENTION; COGNITION; DEPTH PERCEPTION; FEMALE; HEARING; HUMAN; INTELLIGENCE; MALE; PROBLEM SOLVING; PSYCHOMOTOR PERFORMANCE; REACTION TIME; SACCADIC EYE MOVEMENT; SHORT TERM MEMORY; VISION; YOUNG ADULT;

ADOLESCENT; ADULT; APTITUDE; ATTENTION; AUDITORY PERCEPTION; COGNITION; FEMALE; HUMANS; INTELLIGENCE; MALE; MEMORY, SHORT-TERM; PROBLEM SOLVING; PSYCHOMOTOR PERFORMANCE; REACTION TIME; SACCADES; SPACE PERCEPTION; VISUAL PERCEPTION; YOUNG ADULT;

EID: 84994710600     PISSN: 00963445     EISSN: None     Source Type: Journal    
DOI: 10.1037/xge0000219     Document Type: Article

References (106)

1. Ackerman, P. L. (1987). Individual differences in skill learning: An integration of psychometric and information processing perspectives. Psychological Bulletin, 102, 3-27. http://dx.doi.org/10.1037/0033-2909.102.1.3
2. Ackerman, P. L. (1988). Determinants of individual differences during skill acquisition: Cognitive abilities and information processing. Journal of Experimental Psychology: General, 117, 288-318. http://dx.doi.org/10.1037/0096-3445.117.3.288
3. Ackerman, P. L. (1992). Predicting individual differences in complex skill acquisition: Dynamics of ability determinants. Journal of Applied Psychology, 77, 598-614. http://dx.doi.org/10.1037/0021-9010.77.5.598
4. Ackerman, P. L., & Beier, M. E. (2007). Further explorations of perceptual speed abilities in the context of assessment methods, cognitive abilities, and individual differences during skill acquisition. Journal of Experimental Psychology: Applied, 13, 249-272. http://dx.doi.org/10.1037/1076-898X.13.4.249
5. Ackerman, P. L., Beier, M. E., & Boyle, M. O. (2005). Working memory and intelligence: The same or different constructs? Psychological Bulletin, 131, 30-60. http://dx.doi.org/10.1037/0033-2909.131.L30
6. Ackerman, P. L., & Kanfer, R. (1993). Integrating laboratory and field study for improving selection: Development of a battery for predicting air traffic controller success. Journal of Applied Psychology, 78, 413-432. http://dx.doi.org/10.1037/0021-9010.78.3.413
7. Broadway, J. M., & Engle, R. W. (2010). Validating running memory span: Measurement of working memory capacity and links with fluid intelligence. Behavior Research Methods, 42, 563-570. http://dx.doi.org/10.3758/BRM.42.2.563
8. Bühner, M., König, C., Pick, M., & Krumm, S. (2006). Working memory dimensions as differential predictors of the speed and error aspect of multitasking performance. Human Performance, 19, 253-275. http://dx.doi.org/10.1207/s15327043hup1903_4
9. Burgess, P. W., Veitch, E., de Lacy Costello, A., & Shallice, T. (2000). The cognitive and neuroanatomical correlates of multitasking. Neuropsychologia, 38, 848-863. http://dx.doi.org/10.1016/S0028-3932(99)00134-7
10. Cohen, J. (1992). A power primer. Psychological Bulletin, 112, 155-159. http://dx.doi.org/10.1037/0033-2909.112.L155
11. Colom, R., Martinez-Molina, A., Shih, P., & Santacreu, J. (2010). Intelligence, working memory, and multitasking performance. Intelligence, 38, 543-551. http://dx.doi.org/10.1016/j.intell.2010.08.002
12. Colom, R., Shih, P. C., Flores-Mendoza, C., & Quiroga, M. Ä. (2006). The real relationship between short-term memory and working memory. Memory, 14, 804-813. http://dx.doi.org/10.1080/09658210600680020
13. Comstock, J. R., & Arnegard, R. J. (1992). The multi-attribute task battery for human operator workload and strategic behaviour research (Tech. Memorandum No. 104174). Hampton, VA: NASA Langley Research Center.
14. Conway, A. R. A., Kane, M. J., Bunting, M. F., Hambrick, D. Z., Wilhelm, O., & Engle, R. W. (2005). Working memory span tasks: A methodological review and user's guide. Psychonomic Bulletin & Review, 12, 769-786. http://dx.doi.org/10.3758/BF03196772
15. Cowan, N., Elliott, E. M., Scott Saults, J., Morey, C. C., Mattox, S., Hismjatullina, A., & Conway, A. R. A. (2005). On the capacity of attention: Its estimation and its role in working memory and cognitive aptitudes. Cognitive Psychology, 51, 42-100. http://dx.doi.org/10.1016/j.cogpsych.2004.12.001
16. Craik, F. I., & Bialystok, E. (2006). Planning and task management in older adults: Cooking breakfast. Memory & Cognition, 34, 1236-1249. http://dx.doi.org/10.3758/BF03193268
17. Daniels, K. A. (2002). Control, automaticity, and working memory: A dual-process analysis (Unpublished doctoral dissertation). Georgia Institute of Technology, Atlanta, GA.
18. Ekstrom, R. B., French, J. W., Harman, H. H., & Derman, D. (1976). Kit offactor-referenced cognitive tests. Princeton, NJ: Educational Testing Service.
19. Elsmore, T. F. (1994). SYNWORK1: A PC-based tool for assessment of performance in a simulated work environment. Behavior Research Methods, Instruments, & Computers, 26, 412-426. http://dx.doi.org/10.3758/BF03204659
20. Engle, R. W. (2002). Working memory capacity as executive attention. Current Directions in Psychological Science, 11, 19-23. http://dx.doi.org/10.1111/1467-8721.00160
21. Engle, R. W., Tuholski, S. W., Laughlin, J. E., & Conway, A. R. A. (1999). Working memory, short-term memory, and general fluid intelligence: A latent-variable approach. Journal of Experimental Psychology: General, 128, 309-331. http://dx.doi.org/10.1037/0096-3445.128.3.309
22. Eriksen, B. A., & Eriksen, C. W. (1974). Effects of noise letters upon the identification of a target letter in a nonsearch task. Perception & Psychophysics, 16, 143-149. http://dx.doi.org/10.3758/BF03203267
23. Foster, J. L., Shipstead, Z., Harrison, T. L., Hicks, K. L., Redick, T. S., & Engle, R. W. (2015). Shortened complex span tasks can reliably measure working memory capacity. Memory & Cognition, 43, 226-236. http://dx.doi.org/10.3758/s13421-014-0461-7
24. Fothergill, S., Loft, S., & Neal, A. (2009). ATC-lab Advanced: An air traffic control simulator with realism and control. Behavior Research Methods, 41, 118-127. http://dx.doi.org/10.3758/BRM.41.L118
25. Friedman, N. P., & Miyake, A. (2004). The relations among inhibition and interference control functions: A latent-variable analysis. Journal of Experimental Psychology: General, 133, 101-135. http://dx.doi.org/10.1037/0096-3445.133.1.101
26. Friedman, N. P., Miyake, A., Corley, R. P., Young, S. E., DeFries, J. C., & Hewitt, J. K. (2006). Not all executive functions are related to intelligence. Psychological Science, 17, 172-179. http://dx.doi.org/10.1111/j.1467-9280.2006.01681.x
27. Friedman, N. P., Miyake, A., Young, S. E., Defries, J. C., Corley, R. P., & Hewitt, J. K. (2008). Individual differences in executive functions are almost entirely genetic in origin. Journal of Experimental Psychology: General, 137, 201-225. http://dx.doi.org/10.1037/0096-3445.137.2.201
28. Fukuda, K., Awh, E., & Vogel, E. K. (2010). Discrete capacity limits in visual working memory. Current Opinion in Neurobiology, 20, 177-182. http://dx.doi.org/10.1016/j.conb.2010.03.005
29. Garavan, H. (1998). Serial attention within working memory. Memory & Cognition, 26, 263-276. http://dx.doi.org/10.3758/BF03201138
30. Hallett, P. E. (1978). Primary and secondary saccades to goals defined by instructions. Vision Research, 18, 1279-1296. http://dx.doi.org/10.1016/0042-6989(78)90218-3
31. Hambrick, D. Z., Oswald, F. L., Darowski, E. S., Rench, T. A., & Brou, R. (2010). Predictors of multitasking performance in a synthetic work paradigm. Applied Cognitive Psychology, 24, 1149-1167. http://dx.doi.org/10.1002/acp.1624
32. Hambrick, D. Z., Rench, T. A., Poposki, E., Darowski, E. S., Roland, D., Bearden, R. M., Brou, R. (2011). The relationship between the ASVAB and multitasking: A process-specific approach. Military Psychology, 23, 365-380. http://dx.doi.org/10.1037/h0094762
33. Heitz, R. P., Redick, T. S., Hambrick, D. Z., Kane, M. J., Conway, A. R. A., & Engle, R. W. (2006). Working memory, executive function, and general fluid intelligence are not the same. Behavioral and Brain Sciences, 29, 134-135. http://dx.doi.org/10.1017/S0140525X06319036
34. Hooper, D., Coughlan, J., & Mullen, M. R. (2008). Structural equation modelling: Guidelines for determining model fit. The Electronic Journal of Business Research Methods, 6, 53-60.
35. Hunter, J. E. (1986). Cognitive ability, cognitive aptitude, job knowledge, and job performance. Journal of Vocational Behavior, 29, 340-362. http://dx.doi.org/10.1016/0001-8791(86)90013-8
36. Jaeggi, S. M., Buschkuehl, M., Etienne, A., Ozdoba, C., Perrig, W. J., & Nirkko, A. C. (2007). On how high performers keep cool brains in situations of cognitive overload. Cognitive, Affective & Behavioral Neuroscience, 7, 75-89. http://dx.doi.org/10.3758/CABN.7.2.75
37. Kahneman, D. (1973). Attention and effort. Englewood Cliffs, NJ: Prentice Hall.
38. Kane, M. J., Bleckley, M. K., Conway, A. A., & Engle, R. W. (2001). A controlled-attention view of working-memory capacity. Journal of Experimental Psychology: General, 130, 169-183. http://dx.doi.org/10.1037/0096-3445.130.2.169
39. Kane, M. J., Conway, A. R. A., Hambrick, D. Z., & Engle, R. W. (2007). Variation in working-memory capacity as variation in executive attention and control. In A. R. A. Conway, C. Jarrold, M. J. Kane, A. Miyake, & J. N. Towse (Eds.), Variation in working memory (pp. 21-48). New York, NY: Oxford University Press.
40. Kane, M. J., Hambrick, D. Z., & Conway, A. R. A. (2005). Working memory capacity and fluid intelligence are strongly related constructs: Comment on Ackerman, Beier, and Boyle (2005). Psychological Bulletin, 131, 66-71. http://dx.doi.org/10.1037/0033-2909.131.1.66
41. Kane, M. J., Hambrick, D. Z., Tuholski, S. W., Wilhelm, O., Payne, T. W., & Engle, R. W. (2004). The generality of working memory capacity: A latent-variable approach to verbal and visuospatial memory span and reasoning. Journal of Experimental Psychology: General, 133, 189-217. http://dx.doi.org/10.1037/0096-3445.133.2.189
42. Kline, R. B. (1998). Principles and practice of structural equation modeling (1st ed.). New York, NY: Guilford Press.
43. Kline, R. B. (2011). Principles and practice of structural equation modeling (3rd ed.). New York, NY: Guilford Press.
44. König, C. J., Bühner, M., & Mürling, G. (2005). Working memory, fluid intelligence, and attention are predictors of multitasking performance, but polychronicity and extraversion are not. Human Performance, 18, 243-266. http://dx.doi.org/10.1207/s15327043hup1803_3
45. Ledrick, D., Fisher, S., Thompson, J., & Sniadanko, M. (2009). An assessment of emergency medicine residents' ability to perform in a multitasking environment. Academic Medicine, 84, 1289-1294. http://dx.doi.org/10.1097/ACM.0b013e3181b18e1c
46. Logie, R. H., Trawley, S., & Law, A. (2011). Multitasking: Multiple, domain-specific cognitive functions in a virtual environment. Memory & Cognition, 39, 1561-1574. http://dx.doi.org/10.3758/s13421-011-0120-1
47. Lopez, N., Previc, F. H., Fischer, J., Heitz, R. P., & Engle, R. W. (2012). Effects of sleep deprivation on cognitive performance by United States Air Force pilots. Journal of Applied Research in Memory & Cognition, 1, 27-33. http://dx.doi.org/10.1016/j.jarmac.2011.10.002
48. Mäntylä, T. (2013). Gender differences in multitasking reflect spatial ability. Psychological Science, 24, 514-520. http://dx.doi.org/10.1177/0956797612459660
49. Martinez, K., Burgaleta, M., Roman, F. J., Escorial, S., Shih, P. C., Quiroga, M. A., & Colom, R. (2011). Can fluid intelligence be reduced to "simple" short-term storage? Intelligence, 39, 473-480. http://dx.doi.org/10.1016/j.intell.2011.09.001
50. McCabe, D. P., Roediger, H. L., McDaniel, M. A., Balota, D. A., & Hambrick, D. Z. (2010). The relationship between working memory capacity and executive functioning: Evidence for a common executive attention construct. Neuropsychology, 24, 222-243. http://dx.doi.org/10.1037/a0017619
51. McVay, J. C., & Kane, M. J. (2009). Conducting the train of thought: Working memory capacity, goal neglect, and mind wandering in an executive-control task. Journal of Experimental Psychology: Learning, Memory, and Cognition, 35, 196-204. http://dx.doi.org/10.1037/a0014104
52. McVay, J. C., & Kane, M. J. (2012). Why does working memory capacity predict variation in reading comprehension? On the influence of mind wandering and executive attention. Journal of Experimental Psychology: General, 141, 302-320. http://dx.doi.org/10.1037/a0025250
53. Medeiros-Ward, N., Watson, J. M., & Strayer, D. L. (2015). On supertaskers and the neural basis of efficient multitasking. Psychonomic Bulletin & Review, 22, 876-883. http://dx.doi.org/10.3758/s13423-014-0713-3
54. Meyer, D. E., & Kieras, D. E. (1997). A computational theory of executive cognitive processes and multiple-task performance: Pt. 2. Accounts of psychological refractory-period phenomena. Psychological Review, 104, 749-791. http://dx.doi.org/10.1037/0033-295X.104.4.749
55. Miyake, A., Friedman, N. P., Emerson, M. J., Witzki, A. H., Howerter, A., & Wager, T. D. (2000). The unity and diversity of executive functions and their contributions to complex "frontal lobe" tasks: A latent variable analysis. Cognitive Psychology, 41, 49-100. http://dx.doi.org/10.1006/cogp.1999.0734
56. Morey, C. C., & Cowan, N. (2004). When visual and verbal memories compete: Evidence of cross-domain limits in working memory. Psychonomic Bulletin & Review, 11, 296-301. http://dx.doi.org/10.3758/BF03196573
57. Morgan, B., D'Mello, S., Abbott, R., Radvansky, G., Haass, M., & Tamplin, A. (2013). Individual differences in multitasking ability and adaptability. Human Factors, 55, 776-788. http://dx.doi.org/10.1177/0018720812470842
58. Nairne, J. S., VanArsdall, J. E., Pandeirada, J. N. S., Cogdill, M., & LeBreton, J. M. (2013). Adaptive memory: The mnemonic value of animacy. Psychological Science, 24, 2099-2105. http://dx.doi.org/10.1177/0956797613480803
59. Oberauer, K. (2002). Access to information in working memory: Exploring the focus of attention. Journal of Experimental Psychology: Learning, Memory, and Cognition, 28, 411-421. http://dx.doi.org/10.1037/0278-7393.28.3.411
60. Oberauer, K., Schulze, R., Wilhelm, O., & Süss, H. M. (2005). Working memory and intelligence-Their correlation and their relation: Comment on Ackerman, Beier, and Boyle (2005). Psychological Bulletin, 131, 61-65. http://dx.doi.org/10.1037/0033-2909.131.1.61
61. Oberauer, K., Süß, H., Wilhelm, O., & Sander, N. (2007). Individual differences in working memory capacity and reasoning ability. In A. R. A. Conway, C. Jarrold, M. J. Kane, A. Miyake, & J. N. Towse (Eds.), Variation in working memory (pp. 49-75). New York, NY: Oxford University Press.
62. Ophir, E., Nass, C., & Wagner, A. D. (2009). Cognitive control in media multitaskers. Proceedings of the National Academy of Sciences of the United States of America, 106, 15583-15587. http://dx.doi.org/10.1073/pnas.0903620106
63. Oswald, F. L., Hambrick, D. Z., & Jones, L. A. (2007). Keeping all the plates spinning: Understanding and predicting multitasking performance. In D. H. Jonassen (Ed.), Learning to solve complex scientific problems (pp. 77-97). Mahwah, NJ: Erlbaum.
64. Oswald, F. L., McAbee, S. T., Redick, T. S., & Hambrick, D. Z. (2015). The development of a short domain-general measure of working memory capacity. Behavior Research Methods, 47, 1343-1355. http://dx.doi.org/10.3758/s13428-014-0543-2
65. Poole, B. J. (2012). Executive control and attentional scope in visual search: A latent variable investigation (Unpublished doctoral dissertation). University of North Carolina Greensboro, Greensboro, NC.
66. Poole, B. J., & Kane, M. J. (2009). Working-memory capacity predicts the executive control of visual search among distractors: The influences of sustained and selective attention. Quarterly Journal of Experimental Psychology: Human Experimental Psychology, 62, 1430-1454. http://dx.doi.org/10.1080/17470210802479329
67. Poposki, E. M., & Oswald, F. L. (2010). The Multitasking Preference Inventory: Toward an improved measure of individual differences in polychronicity. Human Performance, 27, 247-264. http://dx.doi.org/10.1080/08959285.2010.487843
68. Raven, J., Raven, J. C., & Court, J. H. (1998). Manual for Raven's progressive matrices and vocabulary scales: Section 4. The advanced progressive matrices. San Antonio, TX: Harcourt Assessment.
69. Redick, T. S., Broadway, J. M., Meier, M. E., Kuriakose, P. S., Unsworth, N., Kane, M. J., & Engle, R. W. (2012). Measuring working memory capacity with automated complex span tasks. European Journal of Psychological Assessment, 28, 164-171. http://dx.doi.org/10.1027/1015-5759/a000123
70. Redick, T. S., Calvo, A., Gay, C. E., & Engle, R. W. (2011). Working memory capacity and go/no-go task performance: Selective effects of updating, maintenance, and inhibition. Journal of Experimental Psychology: Learning, Memory, and Cognition, 37, 308-324. http://dx.doi.org/10.1037/a0022216
71. Redick, T. S., & Engle, R. W. (2006). Working memory capacity and Attention Network Test performance. Applied Cognitive Psychology, 20, 713-721. http://dx.doi.org/10.1002/acp.1224
72. Redick, T. S., & Lindsey, D. R. B. (2013). Complex span and n-back measures of working memory: A meta-analysis. Psychonomic Bulletin & Review, 20, 1102-1113. http://dx.doi.org/10.3758/s13423-013-0453-9
73. Redick, T. S., Shipstead, Z., Harrison, T. L., Hicks, K. L., Fried, D. E., Hambrick, D. Z., Engle, R. W. (2013). No evidence of intelligence improvement after working memory training: A randomized, placebo-controlled study. Journal of Experimental Psychology: General, 142, 359-379. http://dx.doi.org/10.1037/a0029082
74. Redick, T. S., Unsworth, N., Kelly, A. J., & Engle, R. W. (2012). Faster, smarter? Working memory capacity and perceptual speed in relation to fluid intelligence. Journal of Cognitive Psychology, 24, 844-854.
75. Robertson, I. H., Manly, T., Andrade, J., Baddeley, B. T., & Yiend, J. (1997). "Oops!": Performance correlates of everyday attentional failures in traumatic brain injured and normal subjects. Neuropsychologia, 35, 747-758. http://dx.doi.org/10.1016/S0028-3932(97)00015-8
76. Rowe, J. B., & Passingham, R. E. (2001). Working memory for location and time: Activity in prefrontal area 46 relates to selection rather than maintenance in memory. NeuroImage, 14, 77-86. http://dx.doi.org/10.1006/nimg.2001.0784
77. Rowe, J. B., Toni, I., Josephs, O., Frackowiak, R. S. J., & Passingham, R. E. (2000). The prefrontal cortex: Response selection or maintenance within working memory? Science, 288, 1656-1660. http://dx.doi.org/10.1126/science.288.5471.1656
78. Salthouse, T. A., Atkinson, T. M., & Berish, D. E. (2003). Executive functioning as a potential mediator of age-related cognitive decline in normal adults. Journal of Experimental Psychology: General, 132, 566594. http://dx.doi.org/10.1037/0096-3445.132.4.566
79. Salthouse, T. A., Babcock, R. L., & Shaw, R. J. (1991). Effects of adult age on structural and operational capacities in working memory. Psychology and Aging, 6, 118-127. http://dx.doi.org/10.1037/0882-7974.6.1.118
80. Salthouse, T. A., Hambrick, D. Z., Lukas, K. E., & Dell, T. C. (1996). Determinants of adult age differences on synthetic work performance. Journal of Experimental Psychology: Applied, 2, 305-329. http://dx.doi.org/10.1037/1076-898X.2.4.305
81. Salvucci, D. D., & Taatgen, N. A. (2008). Threaded cognition: An integrated theory of concurrent multitasking. Psychological Review, 115, 101-130. http://dx.doi.org/10.1037/0033-295X.115.1.101
82. Sanbonmatsu, D. M., Strayer, D. L., Medeiros-Ward, N., & Watson, J. M. (2013). Who multi-tasks and why? Multi-tasking ability, perceived multi-tasking ability, impulsivity, and sensation seeking. PLoS ONE, 8, e54402. http://dx.doi.org/10.1371/journal.pone.0054402
83. Schafer, J. L., & Graham, J. W. (2002). Missing data: Our view of the state of the art. Psychological Methods, 7, 147-177. http://dx.doi.org/10.1037/1082-989X.7.2.147
84. Schmiedek, F., Hildebrandt, A., Lövdén, M., Lindenberger, U., & Wilhelm, O. (2009). Complex span versus updating tasks of working memory: The gap is not that deep. Journal of Experimental Psychology: Learning, Memory, and Cognition, 35, 1089-1096. http://dx.doi.org/10.1037/a0015730
85. Shah, P., & Miyake, A. (1996). The separability of working memory resources for spatial thinking and language processing: An individual differences approach. Journal of Experimental Psychology: General, 125, 4-27. http://dx.doi.org/10.1037/0096-3445.125.1.4
86. Shipstead, Z., Lindsey, D. B., Marshall, R. L., & Engle, R. W. (2014). The mechanisms of working memory capacity: Primary memory, secondary memory, and attention control. Journal of Memory and Language, 72, 116-141. http://dx.doi.org/10.1016/j.jml.2014.01.004
87. Shipstead, Z., Redick, T. S., Hicks, K. L., & Engle, R. W. (2012). The scope and control of attention as separate aspects of working memory. Memory, 20, 608-628. http://dx.doi.org/10.1080/09658211.2012.691519
88. Simon, J. R., & Rudell, A. P. (1967). Auditory S-R compatibility: The effect of an irrelevant cue on information processing. Journal of Applied Psychology, 51, 300-304. http://dx.doi.org/10.1037/h0020586
89. Sperling, G. (1960). The information available in a brief presentation. Psychological Monographs, 74, 1-29. http://dx.doi.org/10.1037/h0093759
90. St. Clair-Thompson, H. (2012). Ascending versus randomised list lengths in working memory span tasks. Journal of Cognitive Psychology, 24, 335-341. http://dx.doi.org/10.1080/20445911.2011.639760
91. Stoet, G., O'Connor, D. B., Conner, M., & Laws, K. R. (2013). Are women better than men at multi-tasking? BMC Psychology, 1, 18. http://dx.doi.org/10.1186/2050-7283-1-18
92. Strayer, D. L., Medeiros-Ward, N., & Watson, J. M. (2013). Gender invariance in multitasking: A comment on Mäntylä (2013). Psychological Science, 24, 809-810. http://dx.doi.org/10.1177/0956797612465199
93. Thurstone, L. L. (1938). Primary mental abilities. Chicago, IL: University of Chicago Press.
94. Tonidandel, S., & LeBreton, J. M. (2011). Relative importance analysis: A useful supplement to regression analysis. Journal of Business and Psychology, 26, 1-9. http://dx.doi.org/10.1007/s10869-010-9204-3
95. Tonidandel, S., & LeBreton, J. M. (2015). RWA Web: A free, comprehensive, web-based, and user-friendly tool for relative weight analyses. Journal of Business and Psychology, 30, 207-216. http://dx.doi.org/10.1007/s10869-014-9351-z
96. Turner, M., & Engle, R. (1989). Is working memory capacity task dependent? Journal of Memory and Language, 28, 127-154. http://dx.doi.org/10.1016/0749-596X(89)90040-5
97. Unsworth, N., & Engle, R. W. (2007). The nature of individual differences in working memory capacity: Active maintenance in primary memory and controlled search from secondary memory. Psychological Review, 114, 104-132. http://dx.doi.org/10.1037/0033-295X.114.1.104
98. Unsworth, N., & Engle, R. W. (2008). Speed and accuracy of accessing information in working memory: An individual differences investigation of focus switching. Journal of Experimental Psychology: Learning, Memory, and Cognition, 34, 616-630. http://dx.doi.org/10.1037/0278-7393.34.3.616
99. Unsworth, N., Fukuda, K., Awh, E., & Vogel, E. K. (2014). Working memory and fluid intelligence: Capacity, attention control, and secondary memory retrieval. Cognitive Psychology, 71, 1-26. http://dx.doi.org/10.1016/j.cogpsych.2014.01.003
100. Unsworth, N., Heitz, R. P., Schrock, J. C., & Engle, R. W. (2005). An automated version of the operation span task. Behavior Research Methods, 37, 498-505. http://dx.doi.org/10.3758/BF03192720
101. Unsworth, N., McMillan, B. D., Brewer, G. A., & Spillers, G. J. (2012). Everyday attention failures: An individual differences investigation. Journal of Experimental Psychology: Learning, Memory, and Cognition, 38, 1765-1772. http://dx.doi.org/10.1037/a0028075
102. Unsworth, N., Redick, T. S., Heitz, R. P., Broadway, J. M., & Engle, R. W. (2009). Complex working memory span tasks and higher-order cognition: A latent-variable analysis of the relationship between processing and storage. Memory, 17, 635-654. http://dx.doi.org/10.1080/09658210902998047
103. Unsworth, N., Redick, T. S., McMillan, B. D., Hambrick, D. Z., Kane, M. J., & Engle, R. W. (2015). Is playing video games related to cognitive abilities? Psychological Science, 26, 759-774. http://dx.doi.org/10.1177/0956797615570367
104. Unsworth, N., Spillers, G. J., & Brewer, G. A. (2009). Examining the relations among working memory capacity, attention control, and fluid intelligence from a dual-component framework. Psychology Science Quarterly, 51, 388-402.
105. Watson, J. M., & Strayer, D. L. (2010). Supertaskers: Profiles in extraordinary multitasking ability. Psychonomic Bulletin & Review, 17, 479485. http://dx.doi.org/10.3758/PBR.17.4.479
106. Yntema, D. B., & Mueser, G. E. (1962). Keeping track of variables that have few or many states. Journal of Experimental Psychology, 63, 391-395. http://dx.doi.org/10.1037/h0045706