Developing a sample design involves a systematic approach to ensure the collected data is representative and the survey is efficient. Let's break down the correct sequence of steps.

Sample Design Development: Defining the Universe

The process begins with clearly defining the scope of the study.

• C. Type of Universe & Sampling Unit: This is the foundational step. First, you must identify the 'universe', which is the entire group of individuals or items you are interested in studying. Next, you define the 'sampling unit', which is the basic element within the universe from which the sample will be drawn (e.g., individuals, households, organizations). Understanding the nature and scope of the universe and its constituent units is crucial before proceeding.

Sample Design Development: Identifying Source List and Sample Size

Once the basic framework is set, the next logical step involves practical considerations for sample selection.

• E. Source list & Size of Sample: After defining the universe and sampling units, you need a 'source list' or sampling frame, which is a list of all the sampling units from which the sample will be selected. Following this, the 'size of the sample' needs to be determined. The sample size is influenced by factors like desired precision, variability in the population, and available resources.

Sample Design Development: Specifying Parameters of Interest

With the sampling frame and size established, the focus shifts to what data needs to be collected.

• A. Parameters of Interest: This step involves clearly identifying the specific characteristics or variables (parameters) that need to be measured or estimated from the sample. These could be averages, proportions, totals, or other statistical measures relevant to the research objectives.

Sample Design Development: Considering Budgetary Constraints

Practical limitations significantly impact the design.

• B. Budgetary Constraint: The financial resources available for the survey play a vital role in shaping the sample design. Budget constraints can influence the feasible sample size, the complexity of the sampling method, and the geographic scope of the study. This constraint often needs to be balanced with the desired level of precision.

Sample Design Development: Finalizing the Sampling Procedure

The final step integrates all previous decisions to choose the method of selection.

• D. Sampling Procedure: Based on the defined universe, sampling units, source list, sample size, parameters of interest, and budgetary constraints, the specific 'sampling procedure' or technique is chosen. This could include methods like simple random sampling, systematic sampling, stratified sampling, cluster sampling, etc. The chosen procedure dictates how the actual sample members are selected from the source list.

Therefore, the correct sequential order for developing a sample design is C, E, A, B, D.