### Table of Contents

<< Designing a Research Project (2010) by Piet Verschuren et al.

# Appendix ~ verschuren2010designing ~ Conceptual Model

Citation | Piet Verschuren, Hans Doorewaard (2010). Designing a Research Project (Second). The Hague, Netherlands. Eleven International Publishing. | Book |
---|

## Core Concepts

Core concepts, as they function in a set of research questions, refer to phenomena that can occur in different **variations** or modalities. (p. 268)

Variations of core concepts, or variables, can assume the form of a **modality** or a **gradation**. (p. 269)

When we start designing a conceptual model, we must first pay attention to the following two rules: (p. 269)

**Rule 1**is to ensure that each of the core concepts is a variable (nominal, ordinal or interval) and that non-variables or constants are excluded from the conceptual model.**Rule 2**is to define, precisely and exclusively, which modalities or gradations of the variables or core concepts will be included in the research.

The variables in the conceptual model should be indicated by short labels, put into boxes. These boxes may be connected by means of one-sided arrows depending on whether there is an expected causal relationship between the variables involved, or not. (p. 269)

## Relationships

If we talk about a relationship between core concepts we refer to a so-called **causal relationship**, in which we differentiate between a cause and an effect. (p. 269)

A causal relationship has two properties, the * direction* and its

*. (p. 270)*

**strength**One can distinguish between five basic patterns of causal effects: (p. 271)

- a. direct effect;
- b. indirect or mediating effect;
- c. interaction or moderating effect;
- d. feedback effect;
- e. confounding effect.

## Tables and figures

- Figure A.1 Conceptual model for economic activity (X), well-being (Y) and the quality of the healthcare system (Z) - generic version
- Figure A.2 A conceptual model consisting of a direct effect of X on Y
- Figure A.3 Conceptual model constituting an indirect effect of X on Y, with Z as an intervening variable
- Figure A.4 Conceptual model expressing an interaction effect of X on Y, with Z as an interacting variable
- Figure A.5 Conceptual model expressing a direct feedback effect between X and Y
- Figure A.6 Conceptual model constituting an indirect feedback effect from X on Y, via Z
- Figure A.7 Conceptual model with Z as a confounding variable; the relation between X and Y is spurious
- Figure A.8 A conceptual model for quantitative research into the healthcare system
- Figure A.9 A conceptual model for qualitative research into the healthcare system
- Figure A.10 Conceptual model of the relation between heating and expansion of iron
- Figure A.11 Research framework 'The capacity to change'
- Figure A.12 Generic conceptual model 'The capacity to change'
- Figure A.13 Generic conceptual model: dimensions and variables
- Figure A.14 Specific conceptual model 'The capacity to change'
- Figure A.15 Specific conceptual model 'The capacity to change', including an interaction effect
- Figure A.16a Conceptual model 'The capacity to change', relationship Al
- Figure A.16b Conceptual model 'The capacity to change', relationship A2
- Figure A.16c Conceptual model 'The capacity to change', relationship A1/B1
- Figure A.16d Conceptual model 'The capacity to change', relationship A2/B1
- Figure A.16e Conceptual model 'The capacity to change', relationship A1/B2
- Figure A.16f Conceptual model 'The capacity to change' relationship A2/B2
- Figure A.16g Conceptual model 'The capacity to change', relationship A1/B3
- Figure A.16h Conceptual model 'The capacity to change', relationship A2/B3
- Figure A.16i Final conceptual model 'The capacity to change'
- Figure A.17 Research framework 'Are we taking care of our environment?'
- Figure A.18 Dependent variable Y: environmentally-friendly behaviour
- Figure A.19 Independent variable X: level of interest
- Figure A.21 Generic conceptual model
- Figure A.22 Dimensions and variables in the generic conceptual model
- Figure A.23 Specific conceptual model
- Figure A.24 Interaction variable Z: age
- Figure A.25 Feedback effect between U and V
- Figure A.26 Including a confounding variable Q: media interest
- Figure A.27 Final conceptual model