Developing a Scale to Assess Teachers’ Perceptions towards Using Web 2.0 Tools in Lectures (TPUWL Scale)

Web 2.0 tools are the tools helping individuals share information online. Although there are scales which determine the opinions of teachers on using web 2.0 tools there is no scale developed to determine the perceptions of teachers towards using Web 2.0 tools. Thus, aim of this research was to develop a scale to assess the teachers’ perceptions related to using Web 2.0 tools at lectures (TPUWL) and determine the factors affecting the perception of teachers. For scale development purpose data was gathered from 240 teachers. Exploratory factor analyses were carried out to find out the structure of the TPUWL. Analyses revealed that TPUWL’s structure had two factors. First factor had 12 items and was entitled “Perception towards Using” while second factor had 10 items and was called “Professional Competence Perception”. For confirmatory factor analyses data was gathered from 220 teachers. Thereupon, total sample of the study consisted of 460 teachers. Data analyses revealed that TPUWL scale is a reliable and valid assessment tool. Scale’s Cronbach’s alpha reliability coefficient was found as .95. After confirming the validity and reliability of the scale, analyses were carried out to determine the factors which might affect the teachers’ perceptions on using Web 2.0 tools with respect to age, education level, experience and gender factors. Analyses revealed that age, education level and experience factors had no statistically significant effect on teachers’ perception toward using Web 2.0 tools. On the other hand, it was revealed by the study that gender factor had a statistically significant effect on the perception. As a consequence, it was determined by the researchers that TPUWL is a useful scale to determine the teachers’ perception towards using Web 2.0 tools in lectures.

Web 2.0 tools are the tools helping individuals share information online. Although there are scales which determine the opinions of teachers on using web 2.0 tools there is no scale developed to determine the perceptions of teachers towards using Web 2.0 tools. Thus, aim of this research was to develop a scale to assess the teachers' perceptions related to using Web 2.0 tools at lectures (TPUWL) and determine the factors affecting the perception of teachers. For scale development purpose data was gathered from 240 teachers. Exploratory factor analyses were carried out to find out the structure of the TPUWL. Analyses revealed that TPUWL's structure had two factors. First factor had 12 items and was entitled "Perception towards Using" while second factor had 10 items and was called "Professional Competence Perception". For confirmatory factor analyses data was gathered from 220 teachers. Thereupon, total sample of the study consisted of 460 teachers. Data analyses revealed that TPUWL scale is a reliable and valid assessment tool. Scale's Cronbach's alpha reliability coefficient was found as .95. After confirming the validity and reliability of the scale, analyses were carried out to determine the factors which might affect the teachers' perceptions on using Web 2.0 tools with respect to age, education level, experience and gender factors. Analyses revealed that age, education level and experience factors had no statistically significant effect on teachers' perception toward using Web 2.0 tools. On the other hand, it was revealed by the study that gender factor had a statistically significant effect on the perception. As a consequence, it was determined by the researchers that TPUWL is a useful scale to determine the teachers' perception towards using Web 2.0 tools in lectures.

Introduction
Rapid changes in technology have caused dramatic changes on informatics sciences. As a result, different tools have been developed for users to access data and to use the data interactively. Web 2.0 is one of the tools developed for that purpose. The term was first Studies indicate that the increasing trend of using web 2.0 tools creates a harmony between the individuals and assist them in sharing knowledge among themselves (Yan, Zha & Yan, 2014). Even local governments use web 2.0 to share information and in return citizens shape the politicians' ideas (Rodriguez Bolivar, 2017). Such dramatic effects of web 2.0 tools naturally paved the way for their being situated in educational settings and hence researchers tried to determine the attitudes of teacher candidates towards using web 2.0 tools (Eyyam, Meneviş & Doğruer, 2011). Other researchers tried to study the perceptions of students on the effectiveness of web 2.0 tools in higher education (Venkatesh, Croteau & Rabah, 2014) while some of the researchers tried to determine the effect of gender on using web 2.0 tools in higher education (Huang, Hood & Yoo, 2013).
Upon the integration of Web 2.0 tools into educational settings and with the integration of technology, teachers have become responsible agents of using those technologies (Akpınar, 2003). Due to those responsibilities teachers should have the necessary qualifications to use Web 2.0 tools. On the other hand, studies show that teachers lack enough efficiency in using Web 2.0 tools. (Blannin, 2015). For more efficient teaching, training on Web 2.0 tools should be given to teachers. But prior to the planning of such training sessions, having knowledge upon the perception of teachers on using Web 2.0 tools is important. That said, perceptions might be a subjective case. Thence, ideas pertaining to the notions of "right" and "wrong" might differ for each individual (Friman, 1999). Thusly researchers have to determine the different factors affecting the individuals' perceptions and assess these accordingly. In light of these, since perceptions might change through experiences, it is crucial to give training on web 2.0 tools and train teachers to use the tools efficiently. Here again, so as to be able to create experiences the need of knowing an individual's perception is essential. Literature already outputs that different measurement tools, such as scales, are being continuously used to determine the attitudes of individuals. In fact, different scales are being used to assess the attitudes of teachers (Birişçi et.al., 2018;Horzum & Aydemir, 2014;Madden, Ellen & Ajzen, 1992) in this regard. Several researchers tried to reveal in particular teachers' opinions related to using Web 2.0 tools. On the other hand, within our knowledge, there is not a scale developed to determine the perceptions of teachers' towards using Web 2.0 tools, (Anyanwu, 2012;Faize, Chiheb, & Ee Afia, 2015;Yuen, Yaoyuneyong, &Yuen, 2011;Zelick, 2013). Since no scale has been developed for assessing teachers' perceptions towards usage of web 2.0 tools, purpose of this study is to develop a scale to assess teachers' perception towards usage of web 2.0 tools and developing a scale to determine the effect of age, education level, experience and gender factors on perception of the teachers.

Method
Methodological research design is applied for the study to develop TPUWL scale since it is useful in sustaining data quality and also it is an appropriate approach in survey development or scale adaptation studies (Madans, 2001).

Participants
Study was carried out with two different groups and finalized within two months. The first study group consisted of 240 teachers, and the second group consisted of 220 teachers. The exploratory factor analysis (EFA) of the adapted scale was conducted via the data obtained from the first group. The confirmatory factor analysis (CFA) was implemented from the data of the second study group. The current study used differences of the two samples since repeating the study or re-doing the exploratory factor analysis or conducting a confirmatory factor analysis, or conducting two successive confirmatory factor analyses only with a sample may not validate the proposed structure (Yıldırım, 2018). To validate the proposed structure demographics of the two samples are selected as closely as possible to each other. Table 1 shows the demographic characteristics of the two study groups (samples). It is clear from Table 1 that teachers who are the sample of the study are mostly women, aged between 31-40, with experiences of 0-10 years and nearly a quarter of them have masters and few of them have PhD degrees.

Development of the TPUWL Scale
Taking a glance at the relevant literature five steps are followed to develop TPUWL scale to assess teachers' perceptions towards using web 2.0 tools in the lectures (Anyanwu, 2012;Horzum & Aydemir, 2014;Yuen, Yaoyuneyong, &Yuen, 2011;Zelick, 2013). Those steps are indicated in the Table 2.

Table 2. TPUWL Scale Development Steps
Step Procedure Step 1 Extensive literature review on web 2.0 tools was conducted Step 2 Interviews conducted with 12 teachers whose opinions were asked through open ended questions on web 2.0 tools Step 3 TPUWL scale was developed with 30 items having two themes; Perception towards Using (PU) and Professional Competence Perception (PCP) Step 4 TPUWL scale was shared with three experts with a view to obtaining their opinions and taking these into consideration Step 5 Draft TPUWL was administrated to 10 teachers. Finalized version consisted of 22 items which are rated on a 5-point scale and administered to 460 teachers.

Data analysis
EFA and CFA were performed for data analyses of the TPUWL scale. 240 teachers were selected for exploratory factor analysis. Their responses to the TPUWL Scale were analyzed via SPSS 22TM software and the results of factor analysis and reliability were obtained. CFA was performed after the item and factor structure of the TPUWL scale was determined. Data from a second sample group (220 teachers) was obtained for confirmatory factor analysis. Both EFA and CFA were applied for the data obtained from study group for the TPUWL scale. Rating of the scale was determined as "good" since the total number of sample group is consisted of 460 teachers (Comrey & Lee, 1992, p. 217). Additionally, literature suggests that sample size should be five to ten times larger than the number of items (Tavşancil, 2002), and since the present study's sample size was ten times larger than the number of items, it is thought that sampling is good enough to carry out factor analysis. Employing an orthogonal rotation strategy with varimax rotation technique helps researchers to interpret the results easily. To that end, using a varimax rotation for factor analysis considered logical for the current study and hence varimax rotation was used for factor analysis (Kieffer, 1998). For the confirmatory factor analysis, GFI, AGFI, RMSEA, CFI, SRMR, IFI and NFI were calculated.

Findings
Final version of TPUWL scale was applied to 240 teachers for EFA. For CFA data were collected from 220 teachers. Both EFA and CFA results are indicated in the next section.

Findings on Scale's Validity Exploratory factor analysis
Kaiser-Meyer-Olkin (KMO) and Barlett tests were utilized to determine whether the data fit for EFA or not. The KMO value of 22 items was calculated as .94 and the Bartlett test result was found to be significant (χ2 = 3431.326, df=231, p< .05). The results indicated that the data were appropriate for factor analysis since KMO coefficient was greater than 0.60 and the Bartlett test was significant (Büyüköztürk, 2006). Therefore, it is concluded that the data from Turkish science teachers were appropriate to run an EFA. EFA and the factor loadings of the items were conducted with the first study group to determine the factorial status of the scale.
Varimax analysis was performed for the TPUWL scale. Kaiser (1960) recommends considering the eigenvalues which are equal or greater than one (1) in choosing the factors. The results of the varimax analysis revealed that two factors have an eigenvalue greater than 1 for the TPUWL scale. This meant that the TPUWL scale had a two-factor structure. Scree plot results for the TPUWL scale are given in Figure 1.

Figure 1. Scatter Graph
The results of the Exploratory Factor Analyis of the TPUWL scale are presented in Table 3. The percentages of the ranked variance quantities for PU, and Professional Competence Perception (PCP) were 48.035 and 13.783 respectively. These two factors share 61.818% of the total variance of the TPUWL scale. 12 items emerged under PU (factor loads of each item are between .569 and .819) and 10 items emerged under PCP (factor loads of each item are between .635 and .824).

Confirmatory factor analysis
CFA results of the TPUWL scale are shown in Figure 2.

Figure 2. CFA results of the TPUWL scale
The model conformity of the TPUWL Scale were tested by criteria such as GFI, AGFI, RMSEA, CFI, SRMR, and NFI (Kılıç & Şen, 2014). Chi-square (χ2), χ2/SD, RMSEA, GFI and AGFI are commonly used in confirmatory factor analysis. In large samples, calculated χ2/df ratio can also be used as a criterion for conformity adequacy. If calculated Chi-square (χ2)/degree of freedom (df) ratio is smaller than 3, it can be regarded as good fit; and if χ2/df ratio is smaller than 5, it can be regarded as sufficient (Yıldırım & Selvi, 2015).
The findings showed that model data had a good fit since AGFI and GFI values were greater than 0.90 (Hooper, Coughlan, & Mullen, 2008), IFI value was greater than 0.95 (Baumgartner & Homburg, 1996;Bentler, 1980), RMSEA value was smaller than 0.05 (Jöreskog & Sörbom, 1993). Model data fit is acceptable since AGFI > 0.80; GFI > 0.85 and both the RMSEA and RMR values > 0.080 (Anderson & Gerbing, 1984;Hu & Bentler, 1999). The confirmatory factor analysis results of the TPUWL scale are shown in Table 4. CFA results highly confirmed the structural equation and scale model. Chi-square value is highly affected by sample size and when sample size is good enough, probability of getting significant results increases. Chi-square value of the CFA was found significant which also indicated that sample size is good enough. Since χ2 and df ratio is lower than 3, it might be said that model data fit is high. Additionally, IFI, CFI and NFI indicated that model-data fit is high since their values exceeds 0.90 and, RMSEA value was found as 0.0072 where AGFI and GFI also exceeded 0.80 and 0.85 in respective order. Results of CFA of TPUWL scale confirmed that scale has two sub-dimensions along with high model-data fit. The results indicated that the TPUWL scale's item-total correlation values range between .575 and .738. These values indicate that each item is appropriate to be used in the TPUWL scale (Field, 2009;Büyüköztürk, 2006). Independent group samples t-test was applied to compare the total scores of bottom (27%) and top (27%) groups on each item and evaluate the significant differences for all items between the groups. Also, correlation between TPUWL scale and its subscales was examined to determine their relationship(s) with each other. Correlation between TPUWL and its subscales are shown in Table 7. It is revealed by the data that scale has significant positive relation with its subscales.

Findings on Scale's Reliability
Every analysis case was examined to determine the reliability of the scale. To develop TPUWL scale data were gathered from 240 teachers and an internal reliability analysis was carried out. Results of analyses for each factor are indicated in Table 8. The Cronbach's Alpha values for the entire TPUWL scale, PU, and PCP were found to be .95, .93, and .94 respectively. To confirm the reliability of TPUWL scale a second set of data were gathered from 220 teachers and an internal reliability analysis was carried out. Results of analyses for each factor are indicated in Table 9. As shown in Table 8 and Table 9, Cronbach Alpha values of the TPUWL scale and its subscales were greater than 0.70 (Tavşancıl, 2002), meaning that both overall scale and factor structures of scale have good reliability coefficients.

Findings on Scale's Stability
Stability of the scale was analysed through the data obtained during two different time intervals. Stability of the scale was shown in Table 10    Pearson product moment correlation analysis was applied to examine the relationship between the scale and the factors. Analysis has revealed that there is a positive and significant relationship between the scale and factors. Significance level of TUPWL and sub-scales is determined by .01 and correlation degrees are taken into account when determining the correlation of the scale with its subscales. A 1.00-0.70 value indicates high correlation; .070-0.30 indicates medium correlation; 0.30-.0.00 value indicates low correlation (Büyüköztürk, 2005). These results suggest that there is a high probability of an individual who gets a high score from a subscale will also get a high score from overall scale or vice versa. On this aspect, comparative analyses were carried out with respect to total scores obtained from the scale.

Findings on Scale's Correlation Values
ANOVA and t-test results for the sample group with respect to age, education level, experience and gender are given in the tables shown below for TPUWL scale scores. Data in Table 12 reveals that there is no significant relationship (F(2, 217)= .481, p>.05) between age and perception of teachers towards usage of Web 2.0 tools. This result draws the conclusion that teachers' perceptions towards using Web 2.0 tools are not affected by age factor. Data in Table 13 reveals that there is no significant relationship (F(2, 217)= .091, p>.05) between education level and perception of teachers towards usage of Web 2.0 tools. This result draws the conclusion that teachers' perceptions towards using Web 2.0 tools are not affected by education level factor. Data in Table 14 reveals that there is no significant relationship (F(2, 217)= .233, p>.05) between experience and perception of teachers towards usage of Web 2.0 tools. This result draws the conclusion that teachers' perception towards using Web 2.0 tools are not affected by experience factor. Data in Table 15 reveals that there is a significant relationship (t(218)= 2.347, p<..05) between gender and perception of teachers towards usage of Web 2.0 tools. This result, in light of descriptive statistics shown in Table 9, points to the fact that teachers' perceptions towards using Web 2.0 tools are affected by gender factor and female teachers have more positive perceptions than male teachers.

Discussion and Conclusion
The aim of this study is to develop "a scale to determine teachers' perceptions towards usage of web 2.0 tools" and to reveal the factors which affect these perceptions towards using Web 2.0 tools. First aim of the study is fulfilled since "determining teachers' perceptions on using Web 2.0 tools" scale is developed. Validity and reliability analyses of the TPUWL scale were carried out through two different samples which consisted of 460 teachers in total. Varimax results analyses indicated that two factors emerged for the TPUWL scale. Briggs & Cheek (1986) point out that similarity of items which present themselves under a structure could be named through the factor name. Similarly, Williams, Onsman & Brown (2010) argue that a meaningful induction of items under a factor structure could be named by the studies. Through the analyses it was understood that the items represent the image of teachers related to the process of Web 2.0 tools and their meaning in educational settings assembly under a structure. Whence, researchers of this study determined that the items under this factor structure could be named as Perception towards Using (PU) for the first factor since items under this factor mostly present perceptions of teachers towards using the Web 2.0 tools. However, items under the second factor mostly present the job related attributes and competence related to profession. Hence, the second factor was named as Professional Competence Perception (PCP).
Those factors are named as PU and PCP. Shared variance by the factors was 61.818% and scale's internal consistency Cronbach's Alpha value was .95. Internal consistency Cronbach's Alpha value for PU determined as .93 for PU and .94 for PCP. Since reliable scales has internal consistency Cronach's Alpha value above the 0.80 then TPUWL scale is also confirmed as a reliable one (Field, 2009;Kline, 1999).
The second purpose of the study was to determine factors which affect teachers' perceptions. Thus, teachers' perceptions towards using Web 2.0 tools are analysed with respect to age, education level, experience and gender factors. Data analyses revealed that teachers' perceptions are not affected significantly by the factors of age, education level and experience. Almekhlafi and Abulibdeh (2018) also revealed that K-12 teachers' perceptions towards using Web 2.0 tools are not affected by the experience of teachers. Thus, results of this study, on this perspective, are consisted with these results. There are similar results shared in the literature (Lekan Kamil, 2014). On the other hand, literature also reveals opposing results with respect to age, experience and education level towards using Web 2.0 tools. For example, Horzum (2010) analysed the effect of experience with as to factors such as having knowledge upon the Web 2.0 tools, usage frequency, and purpose of usage. The results announced that usage of Web 2.0 tools and experience factors are related which contradict with the results of this study. In a similar vein, Soomro, Zai and Jafri (2015) pronounced that perceptions towards using Web 2.0 tools are affected by age. Another study by Batsila, Tsihouridis, Vavougios and Ioannidis (2015) showed perceptions towards usage of Web 2.0 tools are impacted by experience. These results contradict with our results.
The findings pertinent to the second purpose of the study revealed that perceptions towards using Web 2.0 tools are affected by gender factor. Similar results are also indicated in the literature. For example, Horzum (2010) declares knowledge upon usage of Web 2.0 tools, usage frequency and usage purpose are affected by gender factor which complies with the results of our study. Soomro, Zai and Jafri (2015) used a different approach and questioned usage and competency on Web 2.0 tools in the faculties. The related results indicated gender has influence on the usage. Batsila, Tsihouridis, Vavougios and Ioannidis (2015) also stated gender is effective on the usage of Web 2.0 tools. Zelick (2013) analysed academicians' perceptions on usage of Web 2.0 tools and pinpointed that these are affected by gender factor. Although studies mentioned above show similar results to those of our study, literature also indicates contradicting study results about gender factor. For example, Özerbaş and Mart (2017) studied English teacher candidates' perceptions towards usage of Web 2.0 tools and they did not detect any significant effect of gender on perceptions related to the usage of Web 2.0 tools. In a similar fashion, Almekhlafi and Abulibdeh (2018)'s study found out no effect of gender on K-12 teachers' perceptions towards using Web 2.0 tools. Due to Covid-19 an emergency lockdown has been put in effect around the world almost by all of the countries (Dunford, Dale, Stylianou, Lowther, Ahmed & Torre Arenas, 2020). A similar approach adopted by Turkey and hence immediate precautions were taken account. For instance, on 12 March 2020 minister of Ministry of National Education has announced both on Periscope TV and Twitter that all the schools in the country will continue their education through distance education (MEB, 2020a), and Council of Higher Education stopped face to face course instruction on 13 March 2020 for universities (CHE, 2020). Even recently, President of the Republic of Turkey had a live meeting on 26 June 2020 with high school students on YouTube channel (TCBB, 2020). Such cases indicate that Web 2.0 tools used effectively by the states and officials, and as a consequence Web 2.0 tools have become an important subject for education settings and the states.
Taking a glance upon the Ministry of National Education's (MNE) distance education system will also enhance the comprehension of the importance of Web 2.0 tools within the education settings. MNE has announced that interactive courses will be taken through EBA TV (an online and interactive television-like software) which was developed by MNE for primary, elementary and high school levels. Lesson schedules were announced through EBA TV which has different portals for teachers, students, and parents (IETGD, 2020). Teachers were required to complete the missing lessons via EBA TV. Being unprepared to Covid-19 precautions and not having knowledge upon the Web 2.0 tools, some teachers used other platforms which in turn caused an official warning to the teachers by the MNE to use EBA TV. Consequently, school principals are required to establish and control EBA TV classrooms. That case naturally indicated that not only teachers need to have knowledge upon the Web 2.0 tools but also principals should (MEB, 2020b).
As a conclusion, it is believed that the importance of Web 2.0 tools for the states, teachers, principals and parents is critical. Thus, it is hoped that this study will enhance the contribution of the usage of Web 2.0 tools and related studies.

Limitations of the Study and Suggestions
This study aimed to develop a TPUWL scale to assess teachers' perceptions towards using Web 2.0 tools. Thus, the very study examined teachers' perceptions of using Web 2.0 tools based on factors of age, gender, education level and experience. A further study might be done to investigate whether branches (teaching areas) are influential in the development of perceptions or not. Reliability and validity of TPUWL might be assessed through different samples as well.