When interviewing: how many is enough?

Cobern, William W.; Adams, Betty

doi:10.21449/ijate.693217

Cited by 27 publications

(18 citation statements)

References 6 publications

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“…students who are less certain of their study decision (Cobern & Adams, 2020;Guba, 1981;Shenton, 2004). In that regard, we recommend utilizing an additional or different sampling method.…”

Section: Declaration Of Conflicting Interests and Ethicsmentioning

confidence: 99%

Towards an Online Self-Assessment for Informed Study Decisions–A Mixed-Methods Validation Study

Delnoij¹,

Janssen²,

Dirkx³

et al. 2022

International Journal of Assessment Tools in Education

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Informed study decisions are pivotal for student retention in higher online education. A self-assessment prior to enrolment has been proposed as a promising approach to enable informed decision-making and to build resources for retention. To determine whether such a self-assessment affects the decision-making process as intended, thorough and careful validation is a necessity. This study reports on two validity aspects that are less commonly addressed in that respect, but essential for evaluating effectiveness: response processes and consequences of (self-) testing. To map the response processes and consequences of the current selfassessment, a mixed-methods approach was used in which eight prospective students took a self-assessment in an observed think-aloud mode and were interviewed before and after that. Results show different response processes depending on the type of subtest that is taken. The results also indicate that consequential aspect of validity must be considered in the context of decisionmaking phases. The demonstrated evidence and possible threats to validity are discussed in light of refining the self-assessment and embedding it in counselling practice.

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“…students who are less certain of their study decision (Cobern & Adams, 2020;Guba, 1981;Shenton, 2004). In that regard, we recommend utilizing an additional or different sampling method.…”

Section: Declaration Of Conflicting Interests and Ethicsmentioning

confidence: 99%

Towards an Online Self-Assessment for Informed Study Decisions–A Mixed-Methods Validation Study

Delnoij¹,

Janssen²,

Dirkx³

et al. 2022

International Journal of Assessment Tools in Education

View full text Add to dashboard Cite

show abstract

“…In academic qualitative research, while the adequate sample size for qualitative research is still an ongoing debate 4 , there is, nevertheless, common agreement that sample size is not fixed and depends on the nature of research, what the research aims to do, and type of research question(s) being asked (Cobern and Adams, 2020) and that there is always judgement involved. That judgement, however, must also be explained (Cobern and Adams, 2020).…”

Section: Recruitment Of Participants and Samplingmentioning

confidence: 99%

Re-Segmenting Opposition Votes in Turkey Using a Relational Approach: The Boxer, the Pragmatist, and the Visionary

Cevik¹

2021

Sosyoloji Araştırmaları Dergisi

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This paper studies voting from a relational approach and builds a new model for voter segmentation using qualitative data from Turkey. To operationalize a relational approach in the field, I employed 'switch interviews' with 15 participants recruited from a randomly sampled national poll (March 2020), who in common opted for one of the recently founded parties in Turkey when asked "who they would vote for if there was an election tomorrow". In this new model, the object of inquiry for voter segmentation is neither broad structural traits a voter has (ethnicity, religion, ideology, sexuality, etc) nor atomistic calculations. Instead, it is the actual needs and concerns voters are trying to meet in a system of relations. Drawing from these needs, I identify three relational voter profiles: the Boxer, the Pragmatist and the Visionary. These new relational segments help us better understand the causal drivers for support to the new parties in Turkey and give us clues into the future political debates and shifts in the country. The aim here is not to narrow voter segmentation to a single right approach. Nor the study claims to uncover all opinions /needs of the opposition electors who lean towards the new parties; it certainly does not claim to have scanned all opposition voters in Turkey. Rather, the paper aims to push the boundaries of the existing models by adopting a relational thinking and a new tool, switch interviewing, and build a new model for voter segmentation. Such a push is mandated in part by the changing nature of political engagement and citizenship. The paper makes two original contributions. It proposes a new model for voter segmentation using a relational approach and introduces a new methodological tool, switch interviews, to qualitative research.

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“…Hence, the difficult question is how many interviews to conduct, because the more interviews one conducts, the less likely it is that the researcher will miss problems. Fortunately for most education researchers, the saturation rule can be used as a guide (Cobern & Adams, 2020;Seidman, 2006). This rule advises interviewing people until the researcher ceases to hear anything new.…”

Section: Pretesting Via Cognitive Interviewingmentioning

confidence: 99%

Establishing survey validity: A practical guide

Cobern

Adams

2020

International Journal of Assessment Tools in Education

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What follows is a practical guide for establishing the validity of a survey for research purposes. The motivation for providing this guide is our observation that researchers, not necessarily being survey researchers per se, but wanting to use a survey method, lack a concise resource on validity. There is far more to know about surveys and survey construction than what this guide provides; and this guide should only be used as a starting point. However, for the needs of many researchers, this guide provides sufficient, basic information on survey validity. The guide, furthermore, includes references to important handbooks for researchers needing further information.

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When interviewing: how many is enough?

Cited by 27 publications

References 6 publications

Towards an Online Self-Assessment for Informed Study Decisions–A Mixed-Methods Validation Study

Towards an Online Self-Assessment for Informed Study Decisions–A Mixed-Methods Validation Study

Re-Segmenting Opposition Votes in Turkey Using a Relational Approach: The Boxer, the Pragmatist, and the Visionary

Establishing survey validity: A practical guide

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