Research objectives, questions, and purpose 1.2.1 Research objectives The thesis aims at identifying and measuring the level of impact of a number of factors affecting consumption inte
Trang 1CHAPTER 1: RESEARCH OVERVIEW
1.1 Urgency of the thesis topic
Coffee tree plays an important role in the local economy in general and
in the agricultural sector in general Moreover, it is meaningful in terms
of both social and political aspects Vietnamese coffee has high has high
yield and a delicious natural flavor thanks to favorable and and weather
conditions Coffee trees are planted on the highland and, high
mountainous areas Even though Vietnam ranks high in the list of coffee
exporters in terms of yield and export revenue, the product value and
export value are low due to the low processing content Globally
speaking, the reputation of Vietnamese coffee is still weak It is
necessary to develop the local coffee market, reduce the dependence on
importers, and build trademarks for Vietnamese instant coffee
According to the Vietnam Coffee - Cocoa Association (Vicofa), retail
sales of coffee and instant coffee in the local market have achieved
continuous growth for many years with rosy growth forecast ( ground
coffee and instant coffee account for 2/3 and 1/3 of market shares,
respectively) In 2016, retail sales of Vietnamese coffee reached USD
573,75 million and Vietnam was included in the top 5 Asian countries
with highest instant coffee consumption (the other four are: Korean,
Japan, Thailand, and Malyasia) Vietnamese consumers still drink coffee
in the traditional way as an habit while there are consumers who are
unable to afford buying and using instant coffee However, the local
market for instant coffee consumption has great potential for growth
From that reality, the author realized that in-depth studies about
customer’s coffee consumption behavior is required As a result, the
author chose the following topic for the doctoral thesis: “A study on
factors affecting consumption intention towards instant coffee among
significance to meet the urgent demand of instant coffee business in terms of economic and social aspects
1.2 Research objectives, questions, and purpose
1.2.1 Research objectives
The thesis aims at identifying and measuring the level of impact of a number of factors affecting consumption intention towards instant coffee among Vietnamese consumers to see whether they are positive or negative From that, the thesis provides some recommendations to help instant coffee manufacturers and traders promote local consumption, enhance brand value, increase export sales and value as well as to promote Vietnamese coffee products and industry in the international markets
1.2.2 Research questions
1.How is the Vietnamese customers’ consumption intention towards instant coffee?
2.What are factors affecting consumption intention towards instant coffee among Vietnamese consumers?
3.How to identify the level of impact of chosen factors on consumption intention towards instant coffee among Vietnamese consumers? 4.Is there any differences in consumption intention towards instant coffee among different groups with regards to control variables?
5.What are recommendations to promote consumption of instant coffee among Vietnamese customers?
1.2.3 Research purposes
- To provide an overview of local and international studies about factors affecting consumption intention towards coffee among customers in order to propose the research model
Trang 2- To investigate, collect, and analyze reviews of consumers about factors
factors affecting consumption intention towards coffee among
Vietnamese customers and then verify the thesis’ research model
- To sum up the research results as a basis for proposing solutions to
improve instant coffee consumption among Vietnamese customers
1.3 Research subjects and scope
1.3.1 Research subjects
The thesis has studied a number of factors and their impacts on
consumption intention towards instant coffee among Vietnamese
customers Specifically, the thesis has studied: (1) Theoretical basis
about behavior intention (2) Overview of a number of studies about
consumption intention towards coffee and instant coffee in Vietnam and
in the world, and (3) Impacts of these factors on consumption intention
among Vietnamese customers
1.3.2 Research scope
Space: Instant coffee is a type of consumer food that can be used
anywhere; its consumption is not limited to any particular area In
Vietnam, the urban areas, especially in Hanoi and Ho Chi Minh, are
local and international trading hubs and also big markets for food
consumption, including coffee and instant coffee In addition, due to
limited conditions, the thesis only covered collected research data in
seven inner-city districts of Hanoi and two districts, namely Phu Nhuan
and Go Vap, in Ho Chi Minh City The selected districts are areas with
high population density, including people from many regions across the
country; they show a lot of typical features of regional consumption
culture
Time: The thesis investigated and collected data about consumption
intention towards instant coffee among people in Hanoi and Ho Chi
1.4 Research methodology
Overview of research methodology: To achieved research objectives and clarify the research content, the author has chosen qualitative and quantitative research methods Information used in the research is collected from primary and secondary sources
Research sample: Since the study objects are consumers, the sample size must be big enough to ensure generalizability The author plans to achieve the sample size of 1000 observations by using the non-probability sampling methods (convenience sampling)
Research procedure: it include basic steps such as: proposing research model and scale of measure, testing the model, collecting preliminary data to test the reliability of scale of measure, collecting official data, verifying the reliability of scale of measure, analyzing factors, verifying the model and research hypotheses
1.5 New contributions of the thesis
The thesis has provided a number of new contributions in terms of theory and practice for business management as follows:
1.5.1 Theoretical contribution
- The thesis has applied the Theory of Planned Behavior (TPB) to build the research model for new factors affecting consumption intention towards instant coffee among Vietnamese consumers; they are suitable with the consumption culture and conditions in Vietnam The study helps
to improve theoretical basis consumption intention towards food in general and instant coffee in particular
- The thesis has identified factors that affect consumption intention towards instant coffee among Vietnamese consumers and are suitable with the conditions in Vietnam
1.5.2 Practical contribution
Trang 3- The thesis identified and measured the impact level of each factor on
consumption intention towards instant coffee of Vietnamese consumers
Evaluation and conclusions of thesis are reliable and have practical
value, providing objective and comprehensive basis for business and
marketing managers of coffee manufacturers and traders
- The thesis provided a number of recommendations of practical value to
state organizations and coffee manufacturers and traders Such
recommendations act a good source of reference to help
micro-policymaker create a standard institutional environment; business
managers can also apply them to create, maintain, and improve their
overall competitive ability in general and for instant coffee in particular
in accordance with business and production conditions, material sources
and consumption tendency of instant coffee in Vietnam within the next
few years
1.6 Structure of the thesis
- Chapter 1: Overview of the thesis
- Chapter 2: Theoretical basis and research model
- Chapter 3: Research methodology
- Chapter 4: Research results
- Chapter 6: Conclusions and recommendations
CHAPTER 2: THEORETICAL BASIS AND RESEARCH MODEL
2.1 Theoretical basis
2.1.1 Principal concept - Consumption intention
Consumption intention is defined as the subjective intention of
consumers in conducting a specific behavior or action Consumption
intention consists of and is measured by two extremes Positive
behavioral intent has the tendency to create loyalty between consumers
and products, increase sales, encourage good review of products and
suppliers, and willingly spend more to use products On the other hand, negative behavioral intent results in consumers’ tendency to reduce or strop using the products, even to the point of turning to direct competitors and leaving bad reviews about products and suppliers Prediction of intention is the first step in prediction of actual behaviors Thus, behavioral intent is described as the willingness of consumers in their actual behaviors As a result, consumption intention is described as the willingness of consumers in using the product; studying consumption intention carries more weight than studying actual behaviors, especially for researches that provide forecast or to find solutions
2.1.2 Theoretical basis – Theory of planned behavior
The author selects and present a highly important and pioneering theory
in the study of behavioral intent: the Theory of Planned Behavior, which
is an extended, upgraded version of the Theory of Reasoned Action
1, The Theory of reasoned action (TRA) is founded by Ajzen and Fishbein (1975) proved that behavioral intent is influenced by two factors: consumers’ attitude toward behaviors and their subjective norms Behavioral intention variable is a dependent variable and the focus of research because behavioral intention is the best predictive factor of actual behavior Actual behavior is defined by the intention in conducting the action
2, Theory of planned behavior by Ajzen (1991) is an extension from the reasoned action theory This theory is developed in order to solve the limitation of the prior theory in assuming that individual behavior is exclusively determined by their will According to the theory of planned behavior, behavioral intention is under influence of three factors in which two factors of Attitude and Subjective norms are inherited from the theory of reasoned action The third factor is Perceived behavioral
Trang 4In this thesis, the author select theory of planned behavior as the
theoretical foundation and conduct test on part of the theoretical model in
Vietnam market Aside from using the majority of factors from the
theoretical model, the author wish to add on new factors suitable for the
economic, cultural and social context of Vietnam in order to explain the
consumption intention toward instant coffee of consumers
2.2 Overview of several studies on factors affecting coffee
consumption intention
Coffee and instant coffee are fast-moving consumer goods; therefore the
author presents a number of studies on factors affecting food
consumption intention of Vietnamese and foreign consumers
2.2.1 Factors affecting food consumption intention
2.2.1.1 Research orientation about personal characters, product
characteristics and social-economic factors affecing food consumption
intention of consumers
The are researches that were carried out in this orientation, such as:
Pilgrim (1957), Khan (1981), Randall and Sanjur (1981), Shepherd (in
1985 and further study in 1989) Research results proved that there are
three groups of main factors affecting food consumption intention of
consumers: personal characters, food (product) characteristics, and
characteristics of the surrounding economic and social environment The
researchers have highlighted the influential role of personal
characteristics and food characteristics toward food consumption
intention of consumers These studies have some shortcomings as they
seem to only mention factors positively affecting food consumption
intention without explaining the operation or identifying the impact level
of each factor
2.2.1.2 Research orientation about applying the TPB model in
Shepherd and Sparks (1992) proved that in addition to attitude, subject norms and perceived behavioral control, awareness of personal character
is the 4th factor affecting clean vegetable consumption of English consumers In addition, and Arkus (2009) proved that consideration for health and trust in brand have positive and direct impact of food consumption intention of English consumers The demographic factor (specifically education level and social status) and consider for health are driving factors while the unavailability of product is the limiting factors for food consumption intention (Justin and Jyoti, 2012) In another research direction, the attitude factor is deducted into sub-factors such as awareness of selling price, awareness of usage convenience (Anssi and Sanna, 2005), awareness of quality ((Dickieson and Arkus, 2009), awareness of usage motive and reason (Cardello, 1995) in studies about safe food consumption intention These factors play important role in the process of looking for food information which is the basis for forming the food consumption intention Studies point out that these factors have strong impacts on safe food consumption intention In Vietnam, there are several studies on safe food purchase intention such as: study of Truong
T Thien et al (2010) proving Vietnamese consumers to concern more about the quality than the prices of products; study of Nguyen Phong Tuan (2011) showing the effects of factors as Attitude toward environment, Value awareness, Consideration of Healthy, Knowledge of food and Subjective norms having meaningful relation toward the purchase intention of consumers in Hanoi and Ho Chi Minh City; study
of Le Thuy Huong (2014) proving six factors affecting the food purchase intention of consumers with Subjective norms accounted for the highest impact on safe food purchase intention, followed by Consideration for health
Trang 5Studies in Korea, Malaysia, Indonesia, and India gain attention because
of a number of similarities to Vietnam in terms of culture and
consumption habit of tea and coffee
2.2.2.1 Factor affecting coffee consumption intention outside from home
Several highlighted are Hung (2012), Huang and Dang (2014), Chin et al
(2016) Study of Lee et al (2014) in Korean also applied the TPB and
quantitative research method to identify that social responsibilities of
enterprises, consideration to moral aspect, price, health, coffee quality,
discount, and promotion have important impact on safe coffee
There are shortcomings in these studies because the research models
seem to mainly mention factors with positive impact on coffee
consumption intent without giving consideration to substitute products,
limiting factors and product availability In addition, these factors are
quite different in nature, are not classified and do not have solid
explaination
2.2.2.2 Factors affecting coffee consumption intention at home
In an independent research direction, Geel et al (2004) proved that
sensory characteristics of instant coffee (its usefulness) affect the
consumer’s attitude towards the product In another research setting in
Karnataka, India where coffee ranks only behind coffee in terms of
consumption like in Vietnam, Varum et al (2009) identified factors that
have considerable impact of coffee consumption intention while coffee
price is the limiting factors
The shortcomings of these studies are that the research methods are
simple, data analysis is done using the descriptive statistics method, and
the study scope is quite limited because of of their main purposes to
describe and evaluation
2.2.2.3 Purpose, reason, and factors affecting instant coffee consumption
To support for business and product development objectives, several companies such as Trung Nguyen Coffee (2002) and Nestle Vietnam (2002) have conducted market researches by qualitative method in Hanoi and Ho Chi Minh city to identify consumers’ perception toward coffee products in general and instant coffee products in particular of each company Also through these researches, consumers’ purposes and reasons for using instant coffee are established In 2006, a group of authors Tran Thi Quynh Chi, Muriel Figue, Tran Thi Thanh Nhan from Institute of Policy and Strategy at Ministry of Agriculture and Rural Development has conducted “Research on domestic coffee consumption
in Hanoi and Ho Chi Minh City” which identified the geographic consumption habit and trend for different types of coffee In 2013, Vinaresearch conducted “Survey on instant coffee market in 2013” to study consumption habit for instant coffee among Vietnamese consumers, and to research instant coffee labels and positioning within the market The research has identified 5 factors affecting the consumption of instant coffees among consumers: Prices, Customer services, Distribution, Product advertisement, and Quality Of these five factors, quality factor took the highest ranking
2.3 Proposed model and research hypotheses
The proposed research model in figure 2.10 consists of 11 independent variables (awareness of convenience when using, awareness of motivation for usage, awareness of selling price, awareness of product quality, subjective norms, corporate image, trade and Promotion, distribution system, consideration for health, appeal of traditional coffee, perceived behavioral control), 01 dependent variable (instant coffee intention), and 04 control variables (age, gender, education, income) Respectively, there are eleven research hypotheses proposed Hypotheses
Trang 6H1, H2,H3,H4,H5, H6,H7,H8,H9,H11 all have positive relationship while
H11 has inverse relationship with dependent variable
Figure 2.10 : Proposed Research Model
CHAPTER 3: RESEARCH METHODOLOGY
3.1 Design of Research
3.1.1 Research process
The research process includes three main steps: qualitative research,
preliminary quantitative research and official quantitative research
3.1.2 Process of developing questionnaires
- Concept and measurement methods of variables in the model are
identified based on previous empirical studies
- The Vietnamese version of the questionnaire is developed based on
interpreting and taking reference of measurement scales from English to
Vietnamese
- The questionnaire is then translated into English to compare and
review the Vietnamese version
- The Vietnamese questionnaire receives evaluation and review from 10
types of objects who are consumers and specialists in the food and coffee
industry The language and wordings are reviewed to ensure clarity and
correct meaning of research content; then the official version of the questionnaire is completed
Questionnaire content: Aside from the introduction of the research’s purposes and meanings as well as invitation and thank for participants, the questionnaire consists of three main parts: (1) Part 1: Statistical information including age range, gender, income range, and education levels This information is necessary to identify the target group using instant coffee; (2) Part 2: Research information in order to: Identify instant coffee brands; Explore habit and reason for using instant coffee; Position and segment several instant coffee brands on the market; (3) Part 3: The main content with questions designed according to Likert scale with five levels with first choice of “extremely not agree”, than
“not agree”, “neutral”, “agree”, and lastly “extremely agree”
3.1.3 Research sample
3.1.3.1 Overview of sampling The sampling population are Vietnamese consumers who had previously used, purchased instant coffee or those with knowledge about instant coffee They are the decision makers in choosing instant coffee or be an important factor in making choice and using instant coffee
3.1.3.2 Methods of sampling Sampling is chosen through non-probability sampling methods (convenience sampling) where subjects are selected because of their convenient accessibility and proximity to the researcher In this method, the total sample is divided equally into sub-areas according to geography
In Hanoi, each area is one central district including: Dong Da, Thanh Xuan, Cau Giay, Ba Dinh, Tay Ho, Hoan Kiem, and Hai Ba Trung In Ho Chi Minh City, two selected ares are Go Vap district and Phu Nhuan district In study areas, questionnaires are handed out and collected at
Trang 7consumers of instant coffee at households In addition, to reach
consumers outside house and several canteens at universities
3.1.3.3 Sample size
According to Saunders, Lewis and Thornhill (2003), the determination of
minimum sample size to ensure the reliability of survey results is
specifically calculated via the formula:
n × 100
na
= –––––––
re%
n a
: Minimum sample size
n : Sample size per population scale re%: Expected respondent rate
With a current population of around 7.5 million in Hanoi plus 1 million
in 2 districts Go Vap and Phu Nhuan (Ho Chi Minh City), this research
determined a sample size per population scale of 10 million citizens at
n=384 Assuming the expected respondent rate is determined at
re%=70% then the minimum sample size essential to ensure the
reliability of the research is n a
=548.57 observation (rounded up to
n a=549)
For this study, it is imperative that sample size is greater or equal to 549
observations to ensure reliability and high level of generalizability Thus,
as time, resources and finance allowed, the author selected the sample
size of 1000 observation
3.2 Qualitative research
Qualitative research is conducted through in-depth interview and direct
discussion with 07 consumers and 03 experts in coffee industry and
instant consumer goods in Hanoi in December 2014 The result from
qualitative research confirms the relationship between dependent variable
and independent variables and the compatibility between measurement
scales and research terms Moreover, some modifications in wordings
and content of the questionnaire are requested to clarify meanings and
make it easier for understanding Measurement scales completed after qualitative research are encoded to use in quantitative research
3.3 Quantitative research
Quantitative research consists of two phases of preliminary quantitative research and official quantitative research (1) Preliminary quantitative research is conducted with a sample size of 100 consumers in Hanoi Results from data analysis confirms the reliability of measurement scales
as almost all variables are suitable as the corrected item-total correlation coefficient are smaller than 0.3; Cronbach Alpha coefficients are all more than 0.6 but smaller than 0.95 The three variables TL3, KM3 and SK3 have corrected item-total correlation coefficients smaller than 0.3 (2) Official quantitative research includes: verifying measurement scales using EFA factor analysis; verifying measurement scales’ reliability using Cronbach Alpha value; validating hypotheses about the relationship between independent and dependent variables using multiple regression analysis; and lastly verifying the difference among research groups by using T-test and ANOVA methods
CHAPTER 4: RESEARCH RESULTS 4.1 Descriptive statistics of research sample
4.1.1 Descriptive statistics of research sample according to control variable
The total collected questionnaires that are eligible for using is 709, accounting for 89.97% and is more than the minimum required sample size According to collected data, 433 observations are from female, accounting for 61.07% The number of people from the age of 36 to 5 5
is 308, accounting for the highest ratio of 43.44% There are 305 people
of high education background (high school graduates)
Trang 84.1.2 Descriptive statistics research sample according to independent
variables
The mean value of variable for awareness of convenience when using is
2.89, awareness of usage motivation is 2.92, awareness of product price
is 2.91, awareness of quality is 2.91, subjective norms is 3.37,
consideration for health is 3.34, appal of traditional coffee is 3.45, and
perceived behavioral control is 3.52 This show the response of
consumers is of average level (the converted point is: 1-1,8: Strongly
disagree; 1,81–2,6: Do not agree; 2,61–3,4: Normal; 3,41–4,2: Agree;
4,21–5: Strongly agree)
4.2 Assessing the general level of consumption intention for instant
coffee of consumers
4.2.1 Assessing the behavioral characteristics of consumers towards
instant coffee
Through survey result, 100% of survey respondents had clear awareness
of instant coffee, of which 621 people accounting for 87.6% had
previously used instant coffee This is a remarkably high rate of
awareness that correctly responds with the general research of constant
growth for instant coffee production and consumption in domestic
market the past years The reasons for choosing instant coffee
concentrated on three main factors: reasonable prices, available
promotion (48.5% and 47.2%) and ready availability of instant coffee at
home, work or the high coverage at supermarkets and shops making it
easy to purchase (44.4%) Other reasons such as good quality, suitable
flavors or influenced by advertisement also shows high respond rates
with 34.6%, 33.5% and 32.5% respectively
4.2.2 Assessing the general level of consumption intention towards
instant coffee
The mean value of measurement scale for instant coffee consumption intention reaches 3.27 (out of 5 in Likert scale) The results show that the general level of instant coffee consumption intention is average In addition, the mean values of observation variables in the scale for instant coffee consumption intention are quite similar at 3.16, 3.16, 3.24 (out of
5 in Likert scale) According to this, Vietnamese consumers have average reaction towards these variables The positive point is that the two factors receiving the highest response from consumers are “I will actively search for instant coffee” (3.46/5) and “I intend to change to regularly use instant coffee in the future” (3.31/5) This can be considered the opportunities for managers to make plans for increasing the general level
of instant coffee consumption intent among Vietnamese consumers today
4.3 Evaluation result of official measurement scale 4.3.1 Evaluation of distribution type of measurement scale
The maximum and minimum value in the measurement scale lie in the range of 1 to 5, showing that there are not a lot of limits in terms of fluctuations for applied measurement scale The mean value of observation variables display differences, from 2.82 to 3.63 point (out of
5 in Likert scale), showing the difference in valuation about the level of importance among control variables Mean values are between “Normal”
to “Agree”, showing the practicality of independent variables and consumers’ acceptance of these factors The absence of “Strongly Agree” value shows that provided administrative personnel have the capability to exploit further the impact of these factors, there will be opportunity window to raise consumers’ consumption intention for instant coffee Testing result for Skewness and Kurtosis (test how the concerned variables are positioned in relative to the normal distribution) of the
Trang 9within the accepted interval, verifying the data validity for testing and
analysis in the next part
4.3.2 Validation of the value of official measurement scale
Factor analysis is conducted 4 times on all observed variables after
testing the validity of available data by KMO and Bartlett index Through
that, 3 observation variables DC1, TL3, and KM3 are one by one
eliminated because they do not satisfy convergent validity or
discriminant validity
Results of factor analysis for the 4th time with dependent variable
following the standard of Eigenvalue greater than 1 show 6 factors
extraction with the sum of variance explained value from factor
extraction being 74.766% (>50%) All variables have factor loadings
greater than 0.5, satisfying the convergent validity and discriminant
validity Of all variables, four factors maintain as in the previously
proposed research model, namely: Subjective norms, Consideration for
health, Appeal of traditional coffee, and Perceived behavioral control
Two factors are newly created as followed (1) Marketing effort of
company (DN) created through the combination of remaining variables
for three factors: Coporate brand, Trade and Promotion, and Distribution
system; and (2) Awareness of instant coffee usefulness when using
(denoted as HI) is created from the combination of the remaining
variables for factors: Awareness of convenience when using, Awareness
of motivation for usage, Awareness of selling price, and Awareness of
product quality
In conclusion, the results from factor analysis and examination of
measurement scales show that all selected measurement scales are
adequate and could be used in further analysis
4.3.3 Evaluating the reliability of measurement scales
Cronbach’s Alpha values for all measurement scales satisfy the condition
of having Corrected Item-Total Correlation larger than 0.3 and Cronbach’s Alpha if Item Deleted coefficient smaller than Cronbach’s Alpha coefficient Thus, these measurement scales are secured in their reliability and have close correlation with each other in order to measure the studied term as well as can be used for further regression models
4.3.4 Modified research model
Based on the value validation result and assessment of reliability of official measurement scale, the adjusted researched model is presented in figure 4.5 consists of 6 independent variables, 01 dependent variable, and
04 control variables Corresponding to independent variables, six hypotheses are proposed Hypotheses H1, H2,H3,H4,andH6 all have positive relationship while hypothesis H5 has inverse relationship with the dependent variable
Figure 4-5: Modified research model 4.4 Verifying hypothesis about correlation among variables 4.4.1 Verifying correlation coefficient
The relation among independent variables, namely usefulness when using, subjective norms, marketing effort of company, consideration for health, appeal of traditional coffee and dependent variable has statistical significance at 99% level The relation between perceived behavior
Trang 10since the Sig value is greater than 5% However, the correlation
coefficient between these two factors is 0.067, which is in the range of 0
to 0.3 Therefore, in the next part, the author applies the multiple
regression method to confirm and validate the relation among six
independent variables and the dependent variable
There is no correlation among the independent variable of perceived
behavioral control with other independent variables, namely subjective
norms, marketing effort of enterprises, consideration for health, appeal of
traditional coffee There is also no correlation between the independent
variable of marketing effort of enterprise with the independent variable
of subjective norms since the Sig value is greater than 5% The
independence of these variable can be affirmed
4.4.2 Verifying hypotheses about the relation among variables
The author carries out regression analysis for two models: the first model
includes all control variables with the role of independent variables; the
second model includes all independent variables and control variables
that are analyzed at the same time By comparing the two model, the
impact of independent used in the research model can be shown Since
control variables are not consecutive, in order to out them in the
regression model, the author uses dummy variables for age, education,
and income
Result of regression analysis according to the first model for all control
variables with the role of independent variable and dependent variable
show that R2
is 0.004 - approaching 0, F value has sig.>0,05 Therefore,
it can be concluded that there is no correlation between control and
dependent variables; the first model has no statistic significance and is
not suitable with actual data
Result of regression analysis according to the second model for all
2
relation among variables The adjusted R2
value of the model is 0.653, meaning the independent and control variables in the research model can explain 65.3% the fluctuation of dependent variable To put it differently,
up to 65.3% the changes of dependent variable can be explained by independent and control variables
By comparing the first model with the second model, it is seen that in the first regression model, control variables stand separately without correlation with the dependent variable; it has no statistical significance and control variables do not explain the change of dependent variable Meanwhile, the second regression model has statical significance with the reliability level of 99% when adding six independent variables in the model; these variables are accepted The standard regression equation is re-written as follows:
NC = 0,458 HI + 0,068 TL + 0,249 DN + 0,252 SK - 0,142 TT Regression analysis result confirms that of the six variables in the study, five of them are identified as having impact on the consumption intention
of instant coffee with awareness of usefulness having the strongest impact, followed by consideration for health, marketing effort of enterprises, appeal of traditional coffee and finally subjective norms Appeal of traditional coffee is the limiting factor for consumption intention while the others are motivating factors The relation between perceived behavioral control with consumption intention towards instant coffee has not yet been identified This result answers the second and third research questions
4.5 Validation of the difference of control variables to consumption intent towards instant coffee
The general conclusion is that there is no difference in the consumption intention among different groups according to control variables The