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Research Design Location And Research Time Psychology Essay

This chapter will present the methodological approach and research technique used in this thesis along with how the data will be gathered to find the answer or solutions of the research questions and problems, such as research design, theoretical perspective, data collection method, data analysis method as well as the validity and reliability of the data.

Research Design, Location, and Research Time

This research was planned and designed to obtain answer to research questions. Research design is the framework or plan for study, used as a single guide to collect and analyze the data. It is the blueprint that is followed to complete a study.

According to Sekaran and Bougie (2009, p. 24), a research method or approach/design gives details on the most suitable methods of investigating the nature of the research, instruments, the sampling plan and the type of data to be used. Furthermore, Sekaran and Bougie (2009, p. 24) also report that “a research method or design forms the framework of the entire research process.”

Therefore, if it is a good method or design, it will thus ensure that the information obtained is important to the researcher’s problem and those objectives and economic procedures in collecting it are all within limits. It simply is a systematic quest for undiscovered truth. In pursuit of this undiscovered truth, a researcher needs facts, published documents from primary sources and secondary sources.

This research was using a cross sectional study which the data are gathered just once (Sekaran & Bougie, 2009, p. 119).

Research location was done at six locations: Central Jakarta, North Jakarta, South Jakarta, West Jakarta, East Jakarta and Tangerang city to household customers of PT. Perusahaan Listrik Negara between March to July 2012, with the distribution of questionnaires within June 2012.

Research Framework

The research framework of this thesis is shown in Figure 3.1 below. The first research step is to define the research problem, followed by research objective. The third step is a literature review, followed by data collection, data analysis, hypothesis test, and finally generate conclusion and recommendation.

Source: Author

Figure 3.: Research Framework

Research Questions and Hypotheses

In this study, researcher would like to answer the questions and analyze the hypotheses below:

RQ1: How do cultural factors, social factors, personal factors, psychological factors, and PLN services influence customer decision in using electricity at peak load hours?

H1: From those factors, all factors are positively influence customer decision in using electricity at peak load hours.

RQ2: How is the correlation between the decisions in using electricity during peak load hours with the household customer’s behavior towards saving electricity?

H2: There is a correlation between the decisions in using electricity during peak load hours with the household customer’s behavior towards saving electricity.

RQ3: How do pro-social intensions, motivations, access to information, and knowledge influence customer behavior in saving electricity?”

H3: From those factors, all factors are significantly influence customer behavior in saving electricity.

RQ4: How is the correlation between customer awareness of consequences, aspiration of responsibility, personal norms towards their pro-social intensions in saving electricity?”

H4: There is STRONG correlation between customer awareness of consequences, aspiration of responsibility, personal norms towards their pro-social intensions in saving electricity?

RQ5: What interventions or instruments are most likely to affect households’ saving electricity behavior?”

H5: The intervention or instrument most likely to affect households’ saving electricity behavior is by increasing their motivation, knowledge, and access to information about saving electricity programs.

RQ6: From the classification of household segments, which class is the most involved in saving electricity?”

H6: From the classification of household segments, class R1:2.200VA is the most involved in saving electricity.

Conceptual Framework

Source: Author (Adapted from Kotler, 1999, and deGroot & Steg, 2009)

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Figure 3.: Conceptual Framework

Research Data

Type and Source of Data

There are two types of data that researches collected depending on the purpose. The data of research consists of both primary and secondary data. The primary data are the first-hand information acquired by the researcher on the variables under study while the secondary data refer to information gathered from sources that already exist which may come from archives or organizational files (Sekaran & Bougie, 2009, p. 180).

This research was used both primary and secondary data. The primary data sources were obtained through the survey method by distributing structured questionnaires to household customers of PT. PLN Jakarta Raya and Tangerang Distribution.

The secondary data were obtained from the company internal data such as figures in customer-base segmentation, and existing data in books, journals, publications, reports, and websites.

Data Collection Method

The data collection for primary and secondary data is done through the following methods:

Literature Review.

According to Sekaran and Bougie (2009, p. 38), a literature review is a step-by-step process that involves the identification of published and unpublished work from secondary data sources on the topic of interest, the evaluation of this work in relation to the problem.

In this research, the literature review is done by search and study books, reports, journals, research reports, internet website related to electricity business and customer behavior. The information related to the company is obtained through the company’s website and published reports.


Sekaran and Bougie (2009, p. 197) define questionnaire is a pre-formulated recorded series of questions to which the respondents giving their answers usually within rather closely defined alternatives. For this research, the questionnaire is formulated and distributed to the respondents in two methods. First method used is by distributing the questionnaire to respondents through email. The second method is the direct questionnaire to respondents, by asking them to give their answer on the questionnaire paper provided.

Questionnaire Design

Questionnaires are efficient data collection method when the researcher knows the information to gather and how to determine the variables of interest (Sekaran & Bougie, 2009, p. 197). Questionnaire survey is formulated to answer the research questions. It is a tool that may be conveniently distributed personally or electronically to respondent.

According to Burns and Bush (2006, p. 300), there are six key functions of a questionnaire:

To translate the research objectives into specific questions.

To standardize the questions and the response categories to let every participant responds to identical stimuli.

To reinforce cooperation and motivates respondents to respond.

To serve as permanent records of the research.

To speed up the process of data analysis, depending on the type of questionnaire used by the researcher.

To contain the data which may be addressed for reliability and validity.

The first part consists of the demographic attributes questions such as gender, age, education, occupation, annual income, and the second part consists of questions analyzing customer behavior in terms of cultural, social, personal, and psychological factors that base on Griffin and Ebert’s model (2006, p. 283).

Part two in the questionnaires use Likert’s scale which enables the respondents to give level of the attributes stated in the questions.

A Likert’s scale was used in the research, in which respondents were asked to indicate their level of agreement or disagreement on a systematic agree-disagree scale for each of a series of questions (Burns & Bush, 2006, p. 281). Each question in the questionnaire on this part is ranged from 1 to 5, where 1 = Strongly Disagree; 2 = Disagree ; 3 = Neutral or Not Applicable ; 4 = Agree ; 5 = Strong Agree.

The questionnaire format for this research is shown in Figure 3.3 below.

Source: Author

Figure 3.: Questionnaire Design for This Research

Table 3.1 shows the distribution of items in order to measure the variables in the questionnaires.

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Table 3.: Variable, Scale of Data and Category of Questions

Part 1: Respondent Profile



Scale of Data

Category of Questions









20-30 years old

30-40 years old

40-50 years old

50-60 years old

≥ 60 years old




Government employee

Private company employee






Number of Family Members


Small: ≤ 4 members

Medium: 5-6 members

Big: ≥ 7 members


Educational background


Basic / Junior High School

Senior High School

College Degree

Bachelor Degree

Master Degree



Income per month


≤ 2 million rupiahs

2 to 5 million rupiahs

5 to 10 million rupiahs

≥ 10 million rupiahs


Classification electricity


900 VA

1.300 VA

2.200 VA




Central Jakarta

West Jakarta

East Jakarta

South Jakarta

North Jakarta

Tangerang City

Part 2: Exploratory Questions (Data are in Likert scale)

Customer Decision in using electricity at peak load hours



Category of Questions


Cultural Factors

Regularly using electricity at peak load hours (between 17.00 to 20.00).

Household activities were dominated by using electrical equipment.

Regularly using electrical equipment in day time.


Social Factors

The capacity of installed electricity is in accordance with the requirement.

Able to pay if electricity tariff is go up.

Electricity tariffs are still cheap.

It’s normal to reduce electricity subsidized and to increase tariffs when oil prices are up.


Personal Factors

Able to pay electricity and can afford the electricity bills.

It is necessary to increase capacity because the need of electricity will increase.

Electricity bills are relatively small compare to the total expenditure.


Psychological Factor

When using electricity at peak time, we will pay more expensive.

Feeling guilty when using electricity at peak time.

Feeling happy if every rooms are bright.


PLN Services

Power failure was rarely, so it is convenient to use it, especially at peak time.

Recording of electricity is on time and the bill is in accordance with the use.

Since electricity is stable, we are not worry to use it at peak time.

Part 2: Exploratory Questions (Data are in Likert scale)

Customer behavior towards saving electricity



Category of Questions


Access to Information

Get information about saving electricity from friends, family, neighbor, PLN, or community leaders.

Get information about saving electricity from television, radio, magazine/newspaper, and internet.

Often receiving information about saving electricity.



Knows electricity-saving equipment.

Electrical equipment will be more efficient when ‘turned off’ than in ‘standby’.

Using electrical equipment at its maximum capacity will take more energy.



Being motivated to prioritize electricity saving behavior.

Being motivated to respect environment.


Pro-social Intensions

There are negative consequences of any actions that do not respect the environment.

Feel responsible for environmental damage.

Having a moral obligation towards energy efficiency and environmental protection.

Questionnaire Format

In this research, the questionnaires were prepared in printed and online formats using Indonesian language, because some of the respondents were not able to read and speak in English language.

During the pre-test stage, the questionnaire was distributed only through email to 30 respondents to find out the validity and reliability of the data or questions in the questionnaires.

At the post-test stage, the revised questionnaire was printed and distributed door to door. Due to time limitation, researcher employed a strategy by setting up a team consist of 6 (six) members to meet the respondents in 6 (six) different locations (domiciles).

The revised questionnaire was also distributed by email. By using email, it was very convenient in terms of shortening the time spent to send the questionnaire and receiving the responses from the respondents. However, there were difficulties because the respondents were depended on a computer and internet service.

Survey Sampling Method

According to Sekaran and Bougie (2009, pp. 262-263), “a sample is a subset of the population. It comprises some members selected from it. A sample is thus a subgroup of the population, which represents the whole group of people, actions, or things of interest that the researcher wants to investigate.”

According to Burns and Bush (2006, pp. 372-374), “the size of the sample affect the sample accuracy of results, thus sample accuracy refers to how close a random sample’s statistic is to the population’s value it represents. The most correct method of determining sample size is confidence interval approach.”

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In order to calculate the proper sample size of the survey, Burns and Bush (2006, p. 366) said, there are three items required:

Amount of variability of population

Desired accuracy, and

Required confidence level.

Sampling Methodology

In this research, the population is the total number of customers of PT. PLN Jakarta Raya and Tangerang Distribution from the Household segment, which according to the statistics are 3.330.815 number of customers.

For this amount of population, the sample size may be calculated using the formula recommended by Burns and Bush (2006, p. 372):

Where: n = the sample size

z = standard error associated with the chosen level of confidence (1.96)

p = estimated percentage in the population

q = 100- p

e = acceptable sample error

Sample population sample size = population sample size x

In this research, researcher chose to use a probability of 90% with a 95% level of significance equivalent to a “z value” of 1.96 and sample error 4%.

The sampling calculation was determined by using a software application, PHStat2. PHStat2 is a Windows-based software that assists students and professionals in learning the statistic concepts while using Microsoft Excel.

Table 3.: Sampling Size Determination


Estimate of True Proportion


Sampling Error


Confidence Level


Intermediate Calculations

Z Value


Calculated Sample Size



Sample Size Needed


Finite Populations

Population Size


Calculated Sample Size


Sample Size Needed


Source : Data on File

Based on the calculation in Table 3.2, the minimum number of sample size needed is 217 samples; however in this research the number of samples is added to another 10 percent in order to produce greater accuracy. Therefore, this research will be used 240 samples.

This research will use a cross sectional-study in which the data are gathered at once in order to answer the research questions (Sekaran & Bougie, 2009, p. 119).

Sample Withdrawal Techniques

The populations in this research were household customers of PT. PLN Jakarta Raya & Tangerang Distribution. Sampling technique was done by using stratified random sampling, involves a process of stratification or segregation, followed by random selection of subjects from each stratum. The population is divided into stratum, and then sampling conducted in each stratum (Sekaran & Bougie, 2009, p. 272).

In this research, customers who become household population were stratified based on electrical power and is divided into three groups, namely: 900VA, 1.300VA and 2.200VA. It is based on the “Regulation of the President of Republic Indonesia No. 8, 2011, p. 9” (see Appendix A2).

The sample selection techniques are described in Figure 3.4.

Source: Author

Figure 3.: Sample Withdrawal Techniques

Data Analysis

After data are obtained through questionnaires, the next step is to analyze them to test the research hypothesis. To ensure that the data obtained are reasonably good and ready for use for statistical analysis, Sekaran and Bougie (2009, pp. 306-330) recommend followings:

Getting the data to be ready for analysis:

Coding and data entry

Coding the responses

Data entry

Editing data

Data transformation

Getting a feel for the data:

Relationship between variables


Testing goodness of data



Testing the hypothesis

Hypothesis testing and data analysis will be conducted using appropriate statistical method and based on sample data associated with software such as PHStat2, SPSS version 20, and AMOS version 20.

Descriptive Analysis

Descriptive analysis such as the mean, mode, standard deviation, and range are used by researcher to describe the sample data matrix in such a way as to portray the typical respondent and to reveal the general pattern of responses. Descriptive measures are regarded as the steps undertaken by the researcher earlier in the process of analysis and become foundations for subsequent or more complex analysis (Burns & Bush, 2006, p. 424).

Descriptive statistics were used to portray the main characteristics of a collection of data in quantitative terms and distinguished from inductive statistics in that they intend to quantitatively review a data set, instead of being used to support reports regarding the population that the data are supposed to represent. Even when a data analysis obtains its major conclusions using inductive statistical analysis, the descriptive statistics are usually presented alongside the formal analyses to show the audience an overall perception of how data being examined.

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Validity and Reliability Test

A good quality measurement instrument is needed in order to obtain precise data of this research. The ideal instrument has to be reliable and valid. The researcher must address both validity and reliability of the measures in assessing the degree of measurement error present in any measures.

Any measure designed or adapted for use in any research should both be reliable and valid. A reliable measure is one in which a respondent acts in response to the same or a very similar manner to an identical or nearly identical question (Burns & Bush, 2006, p. 290). The reliability of a measure is a test of how consistently a measuring instrument measures whatever concept it is measuring.

In testing the reliability of the questionnaire, the test-retest reliability test was used which measures the correlation between the same respondents obtained at the two different times (Sekaran, 2010, p. 162).

To achieve reliability of a measure, the researcher was using SPSS software with Cronbach’s Alpha as the measurement. Cronbach’s Alpha is a reliability coefficient that determines how well specific items of the measurement tools are positively correlated to one another. Cronbach’s Alpha is computed using the average intercorrelations among the items measuring the concepts. If Cronbach’s Alpha is greater than 0.70, it means that the data are more consistent and reliable. The closer the alpha value to 1 indicates the data are most consistent and reliable. A high quality reliable instrument can be used as a guide to draw a conclusion and making decisions (Sekaran & Bougie, 2009, pp. 324-325).

Validity is a test of how fine a developed instrument to measure the particular concept it is planned to measure. In the other words, validity is related to measurement with the right concept and reliability with stability and consistency of measurement (Sekaran & Bougie, 2009, pp. 158-160).

Correlation Analysis

Correlation analysis is an analysis done to trace the mutual influence of variables on one another. A correlation coefficient that indicates the strength and direction of the relationship can be computed by applying a formula. There could be a perfect positive correlation between two variables, which is represented by 1.0 (plus 1), or a perfect negative correlation which would be -1.0 (minus 1) (Sekaran & Bougie, 2009, p. 322).

The formula to calculate the coefficient of correlation is:

Source: Burns & Bush, 2005


r = coefficient correlation n = samples

xi = variable X x = mean X

yi = variable Y y = mean Y

Table 3.3 presents the rules of thumb in interpreting the correlation coefficient values.

Table 3.: Rules of thumb of degree of correlation

Coefficient Range

Strength of Association

±0.81 to ±1.00


±0.61 to ±0.80


±0.41 to ±0.60


±0.21 to ±0.40

Very Weak

±0.01 to ±0.20


Source: Burns & Bush, 2005

Structural Equation Modeling (SEM)

Structural equation modeling (SEM) is a statistical approach for testing and estimating causal relationship using a combination of statistical data and qualitative causal assumptions. Typically, this theory represents “causal” processes that produce examinations on multiple variables.

The term structural equation modeling expresses two important features of the procedure:

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