|
"Cognitive Innovativeness as a Predictor of Student Attitudes and Intent: an Application of the Theory of Planned Behavior to Online Learning Environments" "Cognitive Innovativeness as a Predictor of Student Attitudes and Intent: An Application of the Theory of Planned Behavior to Online Learning Environments" By Tracy Irani and Michelle O'Malley University of Florida College of Journalism and Communications 2000 Weimer Hall, P.O. Box 118400 University of Florida Gainesville, FL 32611 [log in to unmask] phone: 352/392-6660 [log in to unmask] phone: 352/392-0502 ext. 225 Abstract This study, using the Theory of Planned Behavior as a framework, investigates the effect of internal and external cognitive innovativeness on attitudes, beliefs, and behavioral intentions related to desire to experience an online Web-based course. High internal and external innovators result in more positive attitudes than low internal and external innovators. Regression analysis suggests that attitude is predictive for high internal innovators, while for high cognitive innovators, attitude and norms are predictive. Despite numerous predictions over the past several years that development of the Internet and the World Wide Web will revolutionize instruction and create a new paradigm for teaching and learning, there is still a fair amount of controversy about the viability of online learning environments. Although colleges and universities around the country currently are making, or have plans to make available a variety of online course offerings, students' attitudes toward and acceptance of computerized teaching methods are still an issue (Chronicle of Higher Education, 1998). For some students, the opportunity to take an online course is attractive because it is a convenient and novel approach to the process of education. For others, beliefs about some of the drawbacks of online education, such as the lack of structure provided by a live instructor or lack of access to a computer, may affect negatively attitudes and intent to take an online course. One of the motivating forces that underlies formation of attitudes and beliefs with respect to adoption of new technologies is consumer innovativeness, a personality characteristic that has been explored extensively in the consumer behavior literature. Innovativeness, a construct that is derived from diffusion theory, was originally associated with the adoption and use of new technological innovations (Rogers and Shoemaker, 1971). Many consumer behavior studies have used the concept of consumer innovativeness to examine purchasing behaviors related to adoption of new products. Purpose of the Study Although it has been addressed conceptually, limited research has examined the relationship between individual differences (such as innate traits) among students and their attitudes and beliefs with respect to online education. Hiltz (1987), in a study of adult learners, found that individual differences, primarily differences in learning style, affected preference for online education versus traditional teaching modes. Moore (1990), commenting on this study and others, notes that research is "not yet sufficient to draw conclusions about the extent of variations in preference for online education among the adult population at large" (p.15). Given the parallels between consumer adoption and use of new products and students' similar ability to "adopt" and "use" (i.e., " take") an online course, the purpose of this study is to attempt to extend the concept of consumer innovativeness to the instructional setting in order to determine whether students' levels of innovativeness can be used to predict attitude and intent to enroll in an online course. Given the investment colleges and universities are currently making in online education and distance learning, it is important to have a better understanding of the factors that influence students' attitudes and behavior towards acceptance of new communication technologies, with a view towards developing message stimuli that may potentially create a more effective appeal. Innovativeness as a Characteristic of Personality In its original conception, Rogers defines innovativeness as "the degree to which an individual is relatively earlier in adopting an innovation than other members of his social system" (Rogers and Shoemaker,1971, p. 27). Hirschman (1980) defines innovativeness as the desire for new experience, and traced the development of the construct to its roots in the diffusion and personality literature. According to Venkatraman (1991), consumer innovativeness can be defined as a latent personality trait that predisposes people to buy new products. Leavitt & Walton (1974) critique the results of several previous diffusion studies on the basis of smaller-than-expected variance in the dependent variable of adoption. Calling personality variables the "soft underbelly" of the problem, they postulate that a trait might exist that would underlie rational media choice behaviors. The researchers argue that the many psychological studies of close-mindedness, dogmatism, rigidity, etc., can be counterbalanced by an attempt to scale a new open-minded, constructive trait they call "innovativeness." The subsequent Leavitt & Walton innovativeness scale later was tested for predictive validity by Craig & Ginter (1975) who concluded that not all components of the original scale discriminated between innovators and non-innovators. Along these same lines, Midgley and Dowling (1978) reconceptualize the adoption-of-behavior approach as less a measure of time than a personality construct that an individual could possess to a greater or lesser degree. According to Midgley and Dowling, innovativeness is "the degree to which an individual is receptive to new ideas and makes innovative decisions independently of the communicated experience of others" (p 236). As such, the construct is closely related to novelty seeking (Flavell, 1977), and to creativity, especially productive thinking and problem solving (Welsh, 1975; Guilford, 1965). Although innovativeness is measured as a singular trait in the original diffusion formulation, consumer innovativeness has also been viewed as having more than one dimension. An example of this is Price and Ridgeway's conceptualization of a three tiered hierarchy of innovativeness, which differentiates between innovativeness as an innate trait and as an observed behavior. Drawing on Alpert's (1937, 1961) notion of the hierarchical nature of traits (cardinal, central, secondary) Price & Ridgeway's model views innovativeness as an inherent central trait, and proposes a set of innate secondary traits or tendencies that underlie observable behaviors. A Multi-dimensional Model of Innovativeness Some researchers have attempted to relate innovativeness to the internal need for stimulation. They argue that when stimulation, diversely categorized as complexity, arousal, enjoyment, risk, etc., falls below a certain level, individuals will seek out stimulation through behaviors such as exploration, variety seeking, and novelty seeking (Price and Ridgeway, 1985). Drawing on the work of cognitive researchers, including Caccioppo and Petty (1982) and Hirschman (1984) as well as the novelty seeking literature exemplified by Pearson (1970), Zuckerman (1979) and Faison (1977), Venkatraman and Price (1990) attempt to differentiate cognitive and sensory traits that predispose individuals to seek stimulation of the mind, which they defined as cognitive innovativeness, versus seeking stimulation of the senses (sensory innovativeness). Adapting Pearson's Novelty Experiencing Scale (NES), Zuckerman's Sensation Seeking Scale and Hirschman's Cognition Seeking Scale, Venkatraman and Price (1990) are able to fit a hierarchical second order factor model based on a multi-dimensional structure of innovativeness. (See Fig. 1 below.) Internal External Internal External Cognitive Cognitive Sensory Sensory Figure 1. Second Order Factor Model of Innovativeness In this model, cognitive and sensory dimensions form the higher-order factors, and each of these is comprised of internal and external dimensions. Conceptual definitions of these lower order factors, adapted from Pearson's 1970 study, clarified internal cognitive innovativeness as the "tendency to like unusual cognitive processes that are focused on explanatory principles and cognitive schemes"; while external cognitive innovativeness is the "tendency to like finding out facts, how things work and learning to do new things." Internal sensory innovativeness, on the other hand, is the "tendency to like experiencing unusual dreams, fantasy or feelings that are internally generated"; while external sensory innovativeness is the tendency to like active physical participation in thrilling activities." In the researchers' subsequent model, they combine the internal and external factors of cognitive and sensory innovativeness and average across each to form two eight-item scales (1990). Theory of Planned Behavior A seminal work in attempting to understand and predict behavior and behavioral intentions is Ajzen's theory of planned behavior (1980). This theory is the researcher's extension of the theory of easoned action (TORA). The basic proposition of both models is that in order to predict a behavior, B (such as enrolling in an online course), one must try to measure an individual's intent to behave, BI (such as intent to take an online course), itself a function of attitudes toward the target behavior and subjective norms. In both the TORA model and the later theory of planned behavior (TOPB), attitudes are a function of beliefs about and assessments of perceived consequences of acting in a certain way, such as beliefs about the advantages or disadvantages of taking an online course. Subjective norms refer to an individual's interpretation of what important referents (people with whom the subjects identify) think about the desirability of a behavior, combined with the individual's desire and motivation to comply. In an attempt to answer critics of the TORA, who argue that most behaviors are neither volitional (as in the initial model formulation) nor involutional, Ajzen adds an additional variable called perceived behavioral control, which measures perceptions of individual control over the target behavior. The resulting predictive equation can be written as follows: B~BI~(AB+SN+PBC)=w1AB+w2SN+w3PBC where AB is attitude toward the behavior, SN is subjective norms, and PBC is the degree of perceived behavioral control a subject feels s/he has over the behavior. In the model, these three variables are weighted as follows: AB - variables related to belief statements and evaluation of their consequences; SN - variables related to normative beliefs of important referents and their effect on a subject's motivation to comply; and PBC - variables related to beliefs about the control a subject has over the behavior and the power or degree of control. The TOPB has been employed by researchers in several studies to predict students' attitude and behavioral intentions. Prislin and Kovarlija (1992) in a study of low and high self-monitoring, found that students' intentions to attend a class lecture are best predicted by attitude of the low self-monitoring group and subjective norms of the high self-monitoring groups. Crawley and Black (1992) use the model to test causal linkages among attitudes, subjective norms, and perceived behavioral control with respect to secondary science students' intentions to enroll in physics classes. The model has also been used to predict intention of tenth graders to enroll in subsequent mathematics courses (Choe, 1982) as well as to predict success in an undergraduate computer science course (Shaffer, 1990). Rationale for the Study and Hypotheses This study examines the demand economy currently driving adoption of online education in colleges and universities around the country in light of its similarities with the consumer-driven marketplace. Students in this environment, much like consumer prospects, have the ability to choose to take courses and in some cases, entire degree programs that are characterized by a wide variety of delivery mechanisms and course technologies. Given the volitional nature of the target behavior and students' expectation and experience, that taking classes is a cognitively oriented process, the researchers chose to employ the cognitive innovativeness sub-scale by itself, focusing on differentiating the internal and external factors and using these to predict attitude and intent. The rationale for this approach is based on Vankatraman and Price's work, which showed a highly significant relationship between higher education and cognitive innovativeness (F1,5.18, p< .01), but not sensory innovativeness (p. 309). The model for this study assumes that differences between internal-cognitive innovators, who have a tendency to like unusual cognitive processes and schemes or structures that allow for higher order thinking, versus external-cognitive innovators, who like to ferret out factual information and learn to do new things, might account for differences in the target behavior as well as help predict how attitudes, subjective norms, and perceived behavioral control influence behavioral intent. As internally cognitive people like unusual cognitive processes and cognitive schemes, a cognitively oriented stimulus should elicit a high degree of liking. Conversely, those low in internal cognitive innovativeness receiving the control stimulus should exhibit a lower degree of liking. To test the effect of this potential difference, a cognitively oriented stimulus, based on a detailed online course description and designed to tap into cognitive innovativeness was introduced and assigned to half of the participants, while the other half received a control stimulus. Using this basis, the following hypotheses were derived: When the information contained in the course description stimulus is congruent with cognitive innovativeness (experimental stimuli), compared to when it is discrepant (control stimulus), attitude toward the target behavior should differ as follows: H1) There should be an interaction effect between the attitude scores for high and low internal and external cognitive innovators and the stimuli. H2) There should be an interaction effect between the attitude scores of high internal cognitive innovators and low internal cognitive innovators with the stimuli. H3) There should be an interaction effect between the attitude scores of high external cognitive innovators and low external cognitive innovators and the stimuli. H4) There should be a main effect between internal and external innovators - high internal cognitive innovators should have a more positive attitude than low internal cognitive innovators, and high external innovators should have a more positive attitude than low external cognitive innovators. Finally, in attempting to draw some inferences about which variables are the best predictors of intent to take an online course, the TOPB model was tested using intent to take an online course as outcome variable. This model takes into account potentially contributory variables to the target behavior (taking an online course), and precedent for its use has been established in other studies focusing on students' behavioral intentions. Methodology Subjects and Experimental Design Participants in the study were college students (n=356) in three large introductory public relations and animal science writing classes at a large Southeastern university. The mean age was 20.9; average class standing was sophomore year. The study, based on a 2x2x2 factorial design, consisted of a questionnaire comprised of three elements: 1) A set of scale items measuring internal and external cognitive innovativeness; 2) A randomly assigned stimulus consisting of either a cognitively oriented written course description for an online Web-based course or a control version; and 3) A set of scale items measuring the variables in the theory of planned behavior model with intent to take an online Web-based course as the dependent target behavior variable. At the beginning of the session, subjects were randomly assigned to one of the two (cognitive or control stimuli) experimental conditions, which were incorporated into the copy of the questionnaire each subject received. After filling out the cognitive innovator scale, the participants were then asked to read the course description and answer the rest of the items based on the description they received. Validity stimuli was assessed prior to the study through a pre-test that asked a panel of 15 judges to match each course description to a hypothetical highly innovative student respondent, using an example of how such a student would have responded to items on the scales as part of the description of the student. The validity and reliability of the theory of planned behavior theoretical framework, when used for the purpose of predicting behavioral intent and the conceptual rationale behind each of the variables in the model, has been extensively documented. A thorough analysis of the model and its application to predicting human behavior can be reviewed in Ajzen, 1991. Questionnaire Design To measure attitude toward the behavior, subjects were asked to rate the target behavior (taking an online Web-based course) on a set of seven-point (-3, +3), Likert-type, four bipolar scales, whose anchors are good-bad; pleasant-unpleasant; harmful-beneficial; positive-negative. Subjective norms were measured by a series of bipolar scales that rated first the referents and then motivation to comply with each referent's opinion of the respondent's engaging in the target behavior. These scales were also measured on a Likert-type seven-point scale (-3,+3). Perceived behavioral control was examined by having students rate the degree of control they felt they had over taking an online class, as well as how difficult or easy it would be and whether or not they felt the decision to take an online class was up to them. These scales were measured on a Likert-type seven-point scale (-3,+3). Results Confirmatory factor analysis was conducted on all of the variables in the study and all of the scales had a one-factor solution. The Statistical Package for Social Sciences (SPSS) 7.0 was used to conduct the analyses. Reliability analyses for the scale items used in the instrument were measured by Chronbach's alpha and are reported as follows: Internal cognitive innovativeness ((=.72); external cognitive innovativeness ((=.62); attitude ((=.91); subjective norms ((=.98); and behavioral intention ((=.91). Perceived behavioral control was a one-item measure for each of its components. Hypotheses one through four were tested using ANOVAS. To conduct these tests, internal and external cognitive innovativeness scores were recoded on the basis of a median split into four groups (High Internal Cognitive; Low Internal Cognitive; High External Cognitive; Low External Cognitive) Hypothesis one, that there should be an interaction effect between the attitude scores for high and low internal and external cognitive innovators and the stimulus, was supported at the (=.05 level. F(7, 2.29) p = .016. Both hypothesis two, which predicted differences in attitude between high internal cognitive innovators receiving a cognitive stimulus and low internal cognitive innovators receiving a control stimulus (H2), and hypothesis three, which predicted that attitudes would differ for high external cognitive innovators receiving a cognitive stimulus compared to low external cognitive innovators receiving the control stimulus (H3), were supported at the (=.05 level. Two-way interactions were observed in both cases; the High Internal group (M .458, sd 1.43) had a more positive attitude than the Low Internal group (M -1.21, sd 1.44), F(3, 3.70) p = .012. The High External group (M 5.42, sd 1.26) also had a more positive attitude than the Low External group (M -.003, sd 1.56); F(3, 4.14) p = .007. Hypothesis four, which predicted a main effect between high and low internal and external cognitive innovators, was also supported. The main effect between the High Internal (M .486, sd 1.47) and Low Internal Cognitive (M .184, sd 1.4) and the High External Cognitive (M .583, sd 1.33) and Low External Cognitive. (M .146, sd 1.54) groups was significant at the (=.05 level (F 3, 3.855) p = .004. (See Figure 2). [--- WMF Graphic Goes Here ---] Figure 2. Attitudes toward taking an online course. Prediction of Behavioral Intention To examine the relative contribution of attitudes, subjective norms, and perceived behavioral control to the prediction of behavioral intentions for high and low cognitive and sensory innovators, linear regression analyses were performed using SPSS. Testing of the TOPB model indicates that although all factors are significant contributions to behavioral intent, attitudes and perceived behavioral control are most important (Table 1). Table 1 Prediction of Behavioral Intent to take an Online-Web Based Course Group/Measures r Beta R2 All Subjects Attitudes .81 .72 ** Subjective Norms .54 .08* PBC .41 09** .667 * p = .05, ** p < .01 For all subjects, attitude proved to be a better predictor of behavioral intent than either perceived behavioral control or subjective norms, suggesting that intent to take an online course is a behavior perceived to be, to a great extent, under one's own control and not subject to significant influence by peers, advisers, relatives and other referents. Regressions were then performed for high and low internal and external cognitive innovators, in an attempt to see if these factors had any influence on the outcome variable. Table 2 Prediction of behavioral Intent for High and Low Internal and External Cognitive Innovators Variables r Beta R2 Low Internal AB .75* .64** SN .50* .07 PBC .51* .21** .63 High Internal AB .84* .78** SN .57* .07 PBC .33* .02 .70 Low External AB .80* .73** SN .50* .02 PBC .44* .15** .70 High External AB .81* .71** SN .58* .12* PBC .36* .05 .67 * p < .05, **p < .01 For all groups, attitudes remained the strongest predictors of intent to take an online course. Interestingly, for high internal cognitive innovators, attitude alone was highly significant in contributing to the TOPB model, while both attitude and subjective norms were contributory for high external cognitive innovators. For both low internal and low external cognitive innovators, attitude and perceived behavioral control were important, but norms were not, suggesting that high external cognitive innovators are more concerned about what relevant referents might advise and less concerned about feelings of control or efficacy over the behavior. Discussion and Conclusions Online education is a technological innovation that would seem likely to appeal most to those who have highly innovative personalities, as opposed to those who are less attracted to new experiences and novel technologies. In addition to lack of face-to-face interaction, online learning represents a major change from the traditional educational environment. In the live classroom, the instructor serves as an anchor and a source capable of providing explanation and context for a linear sequence of activities. In addition to potential unfamiliarity with the technology, students in an online course have to deal with a fair amount of ambiguity and lack of structure; the environment is less predictable and may require some ability to figure things out without benefit of experience or rules. The differences observed between high and low internal and high and low external cognitive innovators may relate to their relative levels of tolerance for ambiguity. It seems possible that this may be one of the factors that influences people who are low in innovative tendencies to have a negative opinion about experiences involving technology. The introduction of technology may add a degree of unpredictability and ambiguity to what was formerly a relatively familiar terrain. Conversely, highly innovative people may find the relative lack of structure and "rules" in an online course environment mentally challenging. As the literature suggests, cognitive innovators are problem solvers and thinkers; they like to figure out puzzles, problems, etc. and they are motivated to take risks and enjoy mastering the complex. That differences were observed between the internal and external dimensions of cognitive innovativeness would suggest implications for marketing efforts aimed at attracting students to take an online course. Internal cognitive innovators seem most influenced by their attitudes and sense of control over the technology related to online environments, such as familiarity with and access to computers. Highly internal cognitive innovators seem to feel a stronger sense of control over this type of experience than low cognitive innovators; and for these students, the attraction of an unusual cognitive process is appealing in itself. In addition to attitude, external cognitive innovators seem more influenced by situational norms than internal cognitive innovators. For this group, the feelings of peers and academic advisers may come into play more so than for other groups, because these individuals are externally oriented, yet they also tend to feel a strong sense of control over the target behavior. On the other hand, for both low internal and external cognitive innovators, attitude and perceived behavioral control are important predictors. These groups are less attracted to ambiguous and unstructured situations, this may affect their feelings of lack of control over both the technology and their own ability to function and perform well in the online course environment. Venkatraman et al. (1990) found that cognitive innovators are more persuaded by factual ads than evaluative messages. The results of this study suggest that it also may be important to take the internal and external predispositions of cognitive innovators into account when designing messages. For high internal cognitive innovators, a message emphasizing the mentally challenging aspects of mastering a course in an unpredictable and technologically challenging environment may hold appeal, while high external cognitive innovators might respond better to an appeal that adds the support of important referents such as family, friends, and academic faculty and advisers. Finally, for those groups low in cognitive innovativeness, it seems that lack of perceived behavioral control may be an important issue, one that might be addressed by crafting messages aimed at bolstering confidence in the level of control over the technology and the structure of the experience. From a theoretical standpoint, this study, in keeping with the literature, supports the contention that innovativeness is not a homogenous construct, but one that can be defined according to internal and external aspects of the cognitive innovativeness trait. As results of the study show, internal and external cognitive innovators differ, not only in terms of their relative levels of innovativeness (high vs. low), but also in how the internal or external aspects of the trait may influence evaluations of behavior and behavioral intentions. In the context of online course development and promotion, these differences have important implications for constructing course environments that appeal to cognitive tendencies. In addition, the results suggest support for the importance of both designing communication messages that tap into the internal and external dimensions of cognitive innovativeness, and attempting to reassure students concerned about normative evaluations and beliefs related to perceived behavioral control. References Ajzen, I. (1991). The theory of planned behavior. Organizational Behavior and Human Decision Processes, (50), 179-211. Ajzen, I., and Fishbein, M., (1980). Understanding attitudes and predicting social behavior, Englewood Cliffs, NJ: Prentice-Hall, Inc. Allport, G.W., (1937) Personality: A Psychological Interpretation, New York: Henry Holt. Allport, G.W., (1961). Pattern and growth in personality. New York: Holt, Rinehart and Wilson. Cacioppo, J.T., and Petty, R.E., (1982). The need for cognition. Journal of Personality and Social Psychology (42) 116-131. Capon, N., and Burke, M., (1980). Individual, Product Class and task-related Factors in Consumer Information Processing. Journal of Consumer Research, (7), 314-326. Childers, T.L., Houston, M.J., and Heckler, S.E., (1985). Measurement of individual differences in visual vs. verbal information processing. Journal of Consumer, (12) 125-134. Choe, S., (1992). An analysis of tenth graders intention to enroll in subsequent marketers: An application of the theory of planned behavior, unpublished dissertation, the University of Texas at Austin. Chronicle of Higher Education, (Mar 15,1998). Universities Targeting Distance Courses to Traditional Students. (3), 24-25. Craig, C.S., and Ginter, J.L., (1975). An empirical test of a scale for innovativeness. Advances in Consumer Research, (2) 555-562. Crawley, F., and Kaballa, T.R., Jr., (1992). Hispanic-American Students' attitudes toward enrolling in high school chemistry. A Study of Planned Behavior and Belief-Based Change, Hispanic Journal of Behavioral Sciences, (14)4, 469-485. Crawley, F.E., and Black, C.B. (1992). Causal modeling of sociology science students' intention to enroll in physics, Journal of Research in Science Teaching, 29(6), 585-599. Fasion, E.W.J., (1997). The neglected variety: A useful concept for consumer behavior. Journal of Consumer Research, (4), 172-5. Flavell, J.H., (1977). Cognitive Development. Englewood Cliffs, NJ: Prentice-Hall, Inc. Golsmith, R.E., and Hofacker, C.F., (1991). Measuring consumer innovativeness. Journal of the Academy of Marketing Science, (19)3, 209-221. Guilford, J.P., (1965). Intellectual factors in productive thinking. Productive Thinking in Education, Washington, D.C.: National Education Association, 5-20. Henry, W.A., (1980). The effects of information processing ability on processing accuracy, Journal of Consumer Research, (7) 42-48. Hiltz, S.R., Teaching in a Virtual Classroom: A Virtual Classroom on EIES: Final Evaluation Report, (2) ( ERIC ED 315 039), 1987. Hirschman, E.C., (1980). Innovativeness, novelty seeking, and consumer creativity. Journal of Consumer Research, (7) 283-295. Hirschman, E.C., (1984). Experience seeking: A subjectivistic perspective for consumption, Journal of Business Research, (12) 115-136. Leavitt, C., and Walton, J., (1975). Development of a scale for innovativeness, Advances in Consumer Research, (2) 545-554. McGuire, W.J., (1976). Some internal psychological factors influencing consumer choice, Journal of Consumer Research (2) 302-319. Midgley, D.F., and Dowling, G.R., (1978). Innovativeness: The concept and its measurement. Journal of Consumer Research, (4) 227-242. Moore, M.G., (1973). Towards a theory of independent learning and teaching. Journal of Higher Education, (44) 661-679. Pearson, P., (1970). Relationships between global and specific measures of novelty seeking. Journal of Consulting and Clinical Psychology, (34), 199-204. Price, L.L., and Ridgeway, N.M., (1983), Development of a role to measure use innovativeness. Advances in Consumer Research, (10) 679-684. Prislin, R., and Kovrlya, N., (1992). Predicting behavior of high and low self monitors: An application of the theory of planned behavior. Psychological Reports, (70), 1131-1138. Ridgeway, N., and Price, L.L., (1994). Exploration in product usage: A model of use innovativeness. Psychology and Marketing, (11)1, 69-84. Rogers, E.M., (1983). Diffusions of Innovations. New York:: The Free Press. Rogers, E.M., and Shoemaker, F.F., (1971) Communication of Innovations. New York: The Free Press. Shaffer, D., (1990). Predicting Successes in the Undergraduate Introductory Computer Science Course Using the Theory of Planned Behavior, unpublished dissertation, University of Texas at Austin. Venkatraman, M.P., and Price, L.L., (1990). Differentiating between cognitive and sensory innovativeness: Concepts, measurement, and implications. Journal of Business Research, (20), 293-315. Venkatraman, M.P., Marlino, D., Kordes, F.R., and Sklar, K.B., (1990). Effects of individual difference variables on responses to factual and evaluative ads. Psychology and Marketing, 102-107. Wallach, M.A., and Kogan, N., (1965). Modes of Thinking in Young Children. New York: Holt, Rinehart and Wilson. Welsh, G.S., (1975). Creativity and Intelligence, Institute for Research in Social Science, Chapel Hill, NC: University of North Carolina Press. Zuckerman, M., (1979). Sensation-Seeking Beyond the Optimal Level of Arousal, Hillsdale, NJ: Lawrence Erlbaum Associates.
|