Students’ Perceived Challenges in an Online Collaborative Learning Environment: A Case of Higher Learning Institutions in Nairobi, Kenya

Earlier forms of distance education were characterized by minimal social interaction like correspondence, television, video and radio. However, the World Wide Web (WWW) and online learning introduced the opportunity for much more social interaction, particularly among learners, and this has been further made possible through social media in Web 2.0. The increased availability of collaborative tools in Web 2.0 has made it possible to have online collaborative learning realized in Higher Learning Institutions (HLIs). However, learners can perceive the online collaborative learning process as challenging and they fail to utilize these collaborative tools effectively. Although a number of challenges have been mentioned in the literature, considerable diversity exists among countries due to diversity in infrastructure support for e-learning and learners’ background. This motivated this study to investigate components of online collaborative learning perceived as challenging by learners in HLIs in Kenya. Using a questionnaire, a survey was conducted in two public universities and two private universities to identify students’ perceived challenges in an online collaborative learning environment. Through purposive sampling the questionnaire was distributed to 210 students using e-mail and 183 students responded. Based on descriptive analysis the following five major challenges were rated as high: lack of feedback from instructors, lack of feedback from peers, lack of time to participate, slow internet connectivity, and low or no participation of other group members. There was also a relationship between the university type (private or public) with the perceived challenges which included: lack of feedback from the instructor (p=0.046) and work load not shared equally among group members (p=0.000). Apart from slow internet connectivity the rest of the challenges were in line with the observed challenges in the Students’ Perceived Challenges in an Online Collaborative Environment: A Case of Higher Learning Institutions in Nairobi, Kenya Muuro, Wagacha, Oboko, and Kihoro Vol 15 | No 6 Creative Commons Attribution 4.0 International License Dec/14 133 literature.These key challenges identified in this study should provide insight to educators on the areas of collaborative learning that should be improved in order to provide access to quality education that supports effective online collaborative learning in HLIs in Kenya.


Résumé de l'article
Earlier forms of distance education were characterized by minimal social interaction like correspondence, television, video and radio. However, the World Wide Web (WWW) and online learning introduced the opportunity for much more social interaction, particularly among learners, and this has been further made possible through social media in Web 2.0. The increased availability of collaborative tools in Web 2.0 has made it possible to have online collaborative learning realized in Higher Learning Institutions (HLIs). However, learners can perceive the online collaborative learning process as challenging and they fail to utilize these collaborative tools effectively. Although a number of challenges have been mentioned in the literature, considerable diversity exists among countries due to diversity in infrastructure support for e-learning and learners' background. This motivated this study to investigate components of online collaborative learning perceived as challenging by learners in HLIs in Kenya. Using a questionnaire, a survey was conducted in two public universities and two private universities to identify students' perceived challenges in an online collaborative learning environment. Through purposive sampling the questionnaire was distributed to 210 students using e-mail and 183 students responded. Based on descriptive analysis the following five major challenges were rated as high: lack of feedback from instructors, lack of feedback from peers, lack of time to participate, slow internet connectivity, and low or no participation of other group members. There was also a relationship between the university type (private or public) with the perceived challenges which included: lack of feedback from the instructor (p=0.046) and work load not shared equally among group members (p=0.000). Apart from slow internet connectivity the rest of the challenges were in line with the observed challenges in the literature.These key challenges identified in this study should provide insight to educators on the areas of collaborative learning that should be improved in order to provide access to quality education that supports effective online collaborative learning in HLIs in Kenya.

Introduction
With the increased demand of higher education in Kenya, e-learning in Kenya has gained popularity. To meet the growing demand most of the Kenyan universities have set up an e-learning portal to tap the many students who do not have time to attend physical classes but have time to study online. For example to address the increased demand for e-learning programs in Kenya, recently Kenyatta University (KU) launched a digital school. According to KU website, the digital school offers over 100 courses through blended learning. The students taking these courses can access notes and assignments on the e-learning portal and later they attend four hour face-to-face tutorials for every course before they sit for the final exam. Consequently, other universities in Kenya have followed the same suite and now have e-learning portals for blended learning.
With the recent installation of fiber optic cables in Kenya, the cost for internet has dropped. For example in Nairobi, one can access fiber optic speed of about 100mbps at US $12 per month. According to Karshoda and Waema (2014), about 52% of the students in Kenyan universities own smartphones and 53% own laptops. This shows increased ownership, which coupled with decreased internet access cost means that universities have a good opportunity to offer distance education as well as blended elearning through technology enhanced pedagogies. This recent e-readiness survey which was carried out in 17 Kenyan universities indicated that student population doubled within a period of five years, as shown in Table 1. Therefore, universities should increase their internet bandwidth expenditures from the current 0.5% to 1.5 % of their total annual expenditure by the year 2016 (Karshoda et al., 2014). This was good recommendation in terms of network access, however for distance learners to benefit from this bandwidth e-pedagogy challenges must also be addressed with concrete data within the Kenyan context. This research comes at a time when Kenyan universities are now aware of their e-readiness status in terms of: network access, networked campus, networked learning, networked society, and institutional ICT strategy as defined by Karshoda et al. (2014), and the same time they are being faced with the increased demand in higher education. Therefore, technology enhanced teaching and learning approaches is no longer an option but a requirement to meet this increased demand.
Consequently, the government of Kenya has recommended the establishment of  (Palloff & Pratt, 2005). Therefore there is need to consider both public and private universities when investigating the key challenges associated with online collaborative learning in order to get concrete data which can be useful in both cases.
Previously, research has been carried out to investigate the learners' satisfaction (Singh, 2005), perceived usefulness and challenges (Song, Singleton, Hill & Koh, 2004;Kim, Liu & Bonk, 2005), and factors leading to unsuccessful group collaboration (Roberts & McInnerney, 2007;Liu, Joy, & Griffiths, 2010) in a collaborative online learning environment. However, results have shown that perceived challenges are likely to vary depending on type of e-learning technology used, infrastructure availability (internet and computers) and the use of different learner activity management systems (LAMSs) in HLIs. Furthermore, in Kenya no empirical evidence has been gathered to establish the perceived challenges in an online collaborative learning environment. The purpose of this study is to investigate students' satisfaction and perceived challenges in an online collaborative learning environment with specific attention to those LAMSs being utilized by HLIs in Kenya and more specifically in Nairobi, where e-learning infrastructure is more established in terms of network access due to fiber optic network and education demand being higher as compared with other regions in Kenya.
This study was conducted to investigate the components of online collaborative learning which learners perceive as challenging, hence hindering the effective collaboration process in their online group activities. These three primary questions guided this

Literature Review
Like any other educational idea collaborative learning is an overloaded term with different meanings being given by different scholars. In our research study we adopt Dillenbourg's (1999) definition where collaborative learning is defined as a situation in which two or more people learn or attempt to learn something together. The situation is termed collaborative if peers are more or less at the same level, can perform the same actions, have a common goal and work together. In the pedagogy of teaching, teachers are encouraged to assign group work that gives students the freedom to learn from one another. The idea of group work in learning finds its root in work from the Russian psychologist Vygotsky (1978) who explored the causal relationships that exists between social interaction and individual learning providing a foundation of the social constructivist theory of learning.
Constructivist psychologists advocate the use of collaborative tools such as discussion forums in e-learning as they support the argument that cognitive development is a result of social interaction (Vygotsky, 1978;Siemens, 2005). Other researchers have also explored how constructivism and connectivism learning theories can be adequately used in education technology for the digital age (Mattar, 2010). A commonly used collaborative learning technique is the use of group work to learn a task and researchers have demonstrated that learning is more effective if peers collaborate and share ideas when solving a task as a group rather than as individuals (Johnson and Johnson, 1989).
They also demonstrated that construction and synthesis of knowledge through group work outperforms individual learning (Brindley, Blaschke & Walti, 2009;Moller, 1998).
In their book, Harasim, Hiltz, Teles, and Turoff (1995) have fully demonstrated the potential of collaborative learning in distance education through learning networks which are used to create learning communities at a distance in which learners construct knowledge through active participation with peers and from experts wherever they are located. Learning in groups in an online context gives the students the opportunity to express their own ideas, negotiate meaning, and develop key professional skills like listening, presenting ideas, persuasion, self-direction, self-monitoring and team working (Jaques & Salmon, 2007).
This constructivism theory of learning has been adopted in HLIs in Kenya where students are engaged in discussions by tutorial fellows. These tutorials give the learners a chance to collaborate face to face, critique one another, share knowledge and compare new concepts with one another. Similarly, by introducing e-discussion forums in an online learning environment it is possible to have social affective and cognitive benefits realized in face-to-face tutorials. Effective strategies must be laid down to ensure students are not passive but they actively enter into the online classroom and post their thoughts and ideas to the online discussion (Palloff & Pratt, 2007). Moreover, constructivism theory of learning can be supported in ODeL through a variety of technologies which support constructive learning like computer-mediated communication, computer supported collaborative work, case-based learning environments and computer-based cognitive tools (Jonassen, Davidson, Collins, Campbell & Hagg, 1995). However, social interaction experienced in an online learning environment lacks the aspect of face-to-face interaction experienced in a classroom environment and there do exist notable differences like communication limitations due to lack of interaction support tools in real time, and absence of challenge and explain cycles of interaction that characterize face-to-face tutorials (Curtis & Lawson, 2001).
This gives online learning a major disadvantage even though its demand continues to rise. Consequently online collaborative learning becomes more challenging than face to face prompting the need to carry out more empirical research to identify the key challenges and provide mechanisms to address them in order to realize the same benefits as in face to face collaborative learning.
The Kim et al. (2005) study on an MBA online course reveals that even when students had positive attitudes towards online learning because of its benefits (flexibility, more learning experience through social interaction and enhancement of virtual teaming skills) they are faced with some challenges such as difficulty in communication with peers, lack of sense of community and absence of real-time feedback. Existence of these challenges is an indication that learners in this course could not realize the benefits of collaborative learning. In their study, Roberts and McInnerney (2007) identified seven common problems in an online learning environment: student antipathy towards group work, selection of the groups, lack of essential group-work skills, free-rider, possible inequalities of students' abilities, withdrawal of group members and assessment of individuals within the groups. Zorko (2009) investigated factors which inhibit collaboration in wikis and the study provided recommendations on how to increase collaborative behaviors in the wiki in problem based English language learning. Studies have also shown that online learners get frustrated with collaborative learning due to commitment imbalance on the task and lack of common learning goals among students hence requiring the instructor to equip online learners with social and group skills necessary for effective collaboration (Capdeferro & Romero, 2012). Table 2 summarizes some of these perceived challenges within three categories: poor motivation, lack of individual accountability and negative interdependence (Liu et al., 2010). This summary review provides the background for conceptual elements which needed to be examined as challenging from students' perspectives.   (Liu et al., 2010;Roberts et al., 2007;Capdeferro et al., 2012;Zorko, 2009) Although most of these challenges are common across the studies, there could be diversity in some cases due to infrastructure availability (like network access, computer-

Research Design
A cross-sectional study using descriptive survey was used to investigate students' collaboration level in group work and identify students' perceived challenges in an online collaborative learning environment. A descriptive survey was adopted as it could examine the situation the way it is and provide quantitative information that was summarized through statistical analyses, thus providing the basis to answer our research questions (Engelhart, 1972). This survey was conducted by administering questionnaires using a web-based tool (Lime survey). This approach was preferred because it enabled a faster collection of responses and the ease of exporting the data to our Statistical Package for Social Sciences (SPSS) for analysis.

Sample and Sampling Procedures
Purposive sampling was adopted to select two public universities namely KU and Jomo Kenyatta University of Science and Technology (JKUAT), and two private universities namely United State International University (USIU) and AUSI, which have adopted the use of online collaborative learning tools in their e-learning modules and they are within Nairobi. Purposive sampling was also used to select students who were engaged in group activities online. With the help of instructors a total of two hundred and ten students were identified within the four universities. These were students who were undertaking at least one course or a module online on an e-learning platform. The sampled students were informed by their instructors of the purpose of the study, and responding to the questionnaire items was voluntary.

Research Instruments
Data was collected through a questionnaire that consisted of thirty items. The literature review provided the conceptual elements which were used to develop the set of items in  Table 3 summarizes the different categories for the questionnaire items. To ensure validity, content related evidence was used and two experts in elearning were requested to review the content and the format of the instrument. From their comments some items were rephrased, some content in group orientation added and reformatting done as recommended. Content-related evidence was adopted to ensure the instrument contained an adequate sample of the key challenges related to online collaborative learning (Fraenkel, Wallen & Hyun, 2012). A quantitative analysis was carried out, such as frequencies and percentages on: demographic information, collaboration tools, level of access on group activity and students' perceptions on various aspects of group activity. Since the questionnaire items were meant for a bigger study, not all analysis has been included in this paper.

Participants' Demographic Information
A total of 183 students responded out of 210, with 44.9% from a private university and 53.5% from a public university while three respondents (1.6%) did not provide university names. One respondent did not provide any demographic information including age and gender. Table 4 summarizes the demographic information.

Group Characteristics
Two group characteristics were collected to determine how the students were assigned to group membership and the group sizes. As shown in Table 5, students were assigned to group membership in different ways and group sizes were also different. Out of 108 students who responded a higher percentage was done by the instructor (59%), 16% at random through default assignment in Moodle, 18% self assignment and 7% were not aware how the assignment was done. The number of students in a group ranged from 2 to 5 (32%), 6 to 10 (27%) and more than 10 students (35%). While 6% were not aware of the number of students in their group. This shows that more than 50% of students discussed in groups of more than five students which is contrary to the recommended small group sizes of 2 to 5 students for effective group learning which enables each group member to express his/her own ideas and increases group cohesion (North, Linley, & Hargreaves, 2000;Schellenberg, 1959;Forsyth, 2009)

Popularity of Various Collaborative Tools
As shown in Table 6 of all the respondents, 91.8%, 74.8%, 72.9% and 71.9% frequently use email, social media (Facebook and Twitter), telephone (mainly mobile phones), and chats respectively. Tools like Skype, video conference, workshops 2 and podcasts 3 had the lowest frequency of use, which is an indication that these tools are rarely used by students to collaborate online. Table 6 shows the percentage, mean ranking and standard deviation on the frequency of use on various collaboration tools.
2 Peer assessment activity in Moodle 3 Audio files created by students for peer learning

Level of Collaboration in Various Collaborative Tasks
Out of 183 students who responded only 108 students (59%) indicated that they had done some group work online in their e-learning modules. The rest of the respondents (41%) were not involved in an online group work for reasons which included: instructor not providing an online group activity (41.3%), lack of time (29.3%), lack of skills to participate in online discussion (12%) and not enrolling to a group (17.3%).
More than 80% of the respondents had very low access to posts and they were not replying to posts; only less than 20% accessed or replied to posts more than 4 times in a week. It was found that 39.8% of the respondents indicated that either they accessed or replied to posts only once in a week, 42.7% accessed the posts 2-3 times in a week, 48.5% replied to posts 2-3 times in a week.

Perceived Challenges
The questionnaire item on the perceived challenges had nine key challenges which respondents were required to rate with a yes or no response. The study revealed that the majority of respondents (54%) perceived that lack of participation by other members was a big challenge as most students lacked time to participate (53%). The difference in skills or knowledge level among group members was not perceived as a big challenge (19%). Table 8 shows the distribution of responses on the nine key challenges from 108 respondents. In addition to these nine key challenges, slow internet connectivity (30%), disruptions from incompetent peers (3%), lack of clarity on the posted work (2%), freeriders (2%), no consensus on the discussions (3%) and no original ideas posted (5%) were also mentioned by respondents as some of their worst experiences during their group work. For example, participant number 9 stated: "My worst experience was when the internet was not consistent and it kept on logging users ON and OFF; and we ended up wasting almost one hour without active participation".
To establish whether there was any relationship between the type of university (public or private) and the perceived challenge chi-square test of independence was done. Table   9 summarizes the results of the chi-square test and the corresponding values.
Statistical significance association was found only in two cases: lack of feedback from instructor ( =.041) and work load not shared equally ( =.000).  Note. The mean is equivalent to the proportion of yes responses in the above table. respondents who were doing a module/unit through e-learning, only 108 students (59%) were engaged in an online group activity, while 75 students (41%) were not involved in an online group work. The study found that failure of the instructor to provide an online group activity contributed highly to non participation in collaborative learning. Moreover, for those who participated in group work, 47% mentioned that they perceived lack of feedback from the instructor as a big challenge. This was an indication online instructors were not fully engaging students in collaborative learning in blended e-learning programs. This could be due to the known situation that in most HLIs in Kenya, instructors use e-learning platforms to send notes and assignments, are heavily burdened with many duties and lack skills in e-pedagogy (Nyerere et al., 2012). The study also found that for those who were engaged in collaborative work the level of collaboration was very low as most of the respondents (90%) accessed the discussion forum less than two or three times in a week. Consequently the rate of posting to the discussion forum was found to be very low with only 11.7% of the respondents sending an average of 4 to 5 posts in a week. The findings revealed that students in these HLIs do not often collaborate online. Hence, there is a need to hire more trained instructors or train the current instructors who can engage students in an online collaborative work and create time to monitor their participation.
Secondly, the study aimed to investigate the components of online collaborative learning which learners perceive as challenging in HLIs in Kenya. In this study it was found that 54% strongly perceived that lack of participation by other members was a big challenge. This could be supported by the factor that 53% also responded they did not have time to participate. Lack of feedback both from instructor and peers was also perceived as a challenge by 47% and 43% respectively. This concurred with results from other researchers who found that low participation by members and lack of feedback both from instructor and peers was a major hindrance to collaborative learning (Liu et al., 2010;Capdeferro et al., 2012;Kim et al., 2005). Although Roberts et al. (2007) identified seven common problems, contrary to this study the problems were not major as few respondents were in agreement. Furthermore, 30% of the participants mentioned slow internet connectivity as one of their worst experiences even though previous research had not captured it. This could be due to low internet bandwidth (4.22Mb/s per 1,000 students) availed to students in Kenyan Universities (Karshoda et al., 2014).
This was somewhat surprising given that the study was conducted in Nairobi where internet infrastructure is far better than other regions in Kenya where fiber optic network is yet to be established. This implies that for other regions the problem will be more critical. Therefore, in order to maximize the use of e-learning platforms we do concur with Karshoda et al. (2014) in their e-readiness report to have HLIs in Kenya invest more in campus backbone and wireless network infrastructure to increase the level of internet availability to students. Thirdly, there was significant difference between the public and the private university in terms of lack of instructor feedback (p = 0.046) and workload not shared equally (p = 0.000). The study found that lack of instructor feedback as a challenge was reported more in public universities (31%) than in private universities (16%). This could be due to the big numbers of students enrolled per class in public universities which makes the instructor to student ratio higher than in private universities. Consequently, the instructors in public universities are overloaded with work and this could have affected the low level of feedback observed. The study also found that the challenge of workload not shared equally among the students in an online collaborative learning group was reported to be higher in private universities (20%) than in public universities (7%). This seems to support the perception that students in public universities are more independent, working with minimal instructor supervision, which probably gives them an advantage to work more cohesively in group work. This requires further investigation to establish why such a significant difference existed.

Conclusion
Despite the potential advantages in collaborative learning, this study reveals that lack of participation among group members and lack of feedback from instructors are major hindrances to effective online collaboration in HLIs in Nairobi, Kenya. This coincides with other studies in other regions (Liu et al., 2010;Capdeferro et al., 2012;Kim et al., 2005). Furthermore, some instructors did not include collaborative learning activities in their online courses and therefore 41% of the participants were not engaged in collaborative learning. Therefore, further research should also be carried out to investigate instructors' level of awareness, utilization and perceived challenges of online collaborative learning tools which are available in e-learning platforms. This could also shed more light on how to improve the quality of online collaborative learning in HLIs in Kenya. We do also concur with Karshoda et al. (2014) that internet bandwidth should be increased in HLIs in Kenya in order to avoid the challenge of slow internet connectivity as reported by 30% of the participants in this study. In order to make collaborative learning more effective in these HLIs the researchers do recommend that institutions should: • Ensure their instructors do engage students in collaborative activities in their online courses and instructor's role is more emphasized during collaborative learning • Find ways of motivating the students in order to increase their level of participation in collaborative learning