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  • Terms of reference

    A Terms of Reference (ToR) document provides an important overview of what is expected in an evaluation.
    Method
  • Request for proposal (RFP)

    A Request for Proposal (RFP) is a formal request for evaluators to prepare a response to a planned evaluation and are generally used to select the final evaluator for the evaluation.
    Method
  • Expression of interest

    An expression of interest (EoI) is a way for an organisation to publish its intention to appoint an evaluation team to conduct an evaluation of a specific project or program.
    Method
  • Scope of work

    A Scope of Work (SOW) is a plan for conducting an evaluation which outlines the work that is to be performed by the evaluation team.
    Method
  • Memorandum of understanding

    A Memorandum of Understanding (MOU) outlines an agreement between two collaborating bodies in order to identify the working relationships and guidelines that exist between them.
    Method
  • Statistical generalisation

    Statistical generalisation involves statistically calculating the likely parameters of a population using data from a random sample of that population.
    Method
  • Sequential sampling

    Sequential sampling is a non-probabilistic sampling technique, in which the sample size, n, is not fixed in advanced, nor is the timeframe of data collection.
    Method
  • Analytical generalisation

    Analytical generalisation involves making projections about the likely transferability of findings from an evaluation, based on a theoretical analysis of the factors producing outcomes and the effect of context.
    Method
  • Contractual agreement

    A formal contract is needed to engage an external evaluator and a written agreement covering similar issues can also be used to document agreements about an internal evaluator.
    Method
  • Randomised control trials for the impact evaluation of development initiatives: a statistician's point of view

    This paper from the Institutional Learning and Change (ILAC) Initiative provides a range of technical and practical reflections on the use of randomised control trials in impact evaluation.
    Resource
  • Multi-stage sampling

    Multi-stage sampling represents a more complicated form of cluster sampling in which larger clusters are further subdivided into smaller, more targeted groupings for the purposes of surveying.
    Method
  • Evaluation journals

    Evaluation journals play an important role in documenting, developing, and sharing theory and practice. They are an important component in strengthening evaluation capacity.
    Method
  • Simple random sampling

    A simple random sample (SRS) is the most basic probabilistic method used for creating a sample from a population.
    Method
  • Stratified random sampling

    Stratified random sampling is a probabilistic sampling method, in which the first step is to split the population into strata, i.e. sections or segments.
    Method
  • Qualitative research & evaluation methods: Integrating theory and practice

    The fourth edition of Michael Quinn Patton's Qualitative Research & Evaluation Methods Integrating Theory and Practice, published by Sage Publications, analyses and provides clear guidance and advice for usi
    Resource