Selected integrative studies on TAM and IDT
| Study | Context, method, sample size(s) | Dependent variable(s) | Determinant(s) and findingsa | Mediation(s)/moderator(s)1 |
|---|---|---|---|---|
| Agarwal and Prasad (1997) | World wide web; survey; 73 participants | Current Use (R2 = 0.48) Future Use Intentions (R2=0.46) | For current use: Voluntariness (−); Relative Advantage (=PU, n.s.); PEOU (n.s.); VI (+); CO (+); RD (n.s.); TRI (+); Image (n.s.) For future use intention: Voluntariness (n.s.); Relative Advantage (=PU, +); PEOU (n.s.); VI (n.s.); CO (n.s.); RD (+); TRI (n.s.); Image (n.s.); Actual usage (n.s.) | / / |
| Chen et al. (2002) | Virtual stores; survey, 253 participants | Actual use | Behavioral intention (+) | Via BI: Attitude (+); PU (n.s.) Via Attitude: PU (+); PEOU (+); CO (+) Via PU: PEOU (+), CO (+) |
| Chen et al. (2009) | Smart phone use within a delivery service company; survey; 274 employees | Behavioral intention (Model 4) | PU (n.s.); Self Efficacy (+); Attitude (+) | Via Attitude: PU (n.s.); PEOU (n.s.); CO (n.s.); TR (+); OB (n.s.); Task (n.s.); Individual (n.s.); Organization (+); Environment (+) Via PU: CO (+); PEOU (+) Via PEOU: Self Efficacy (+) |
| Karahanna et al. (1999) | Information technology; cross-sectional field study; 268 employees | Behavior intention to adopt (R2 = 0.38), Behavior Intention to continuing using (R2 = 0.24) | Adopt: Attitude (n.s.); Subjective norm (+); Perceived voluntariness (n.s.) Continuing using: Attitude (+); Subjective Norm (n.s.); Perceived Voluntariness (-) | Via Attitude to adopt: PU (+); PEOU (+); Image (n.s.); VI (+); RD (+), TRI (-) Via Attitude to continuing toward use: PU (+); PEOU (n.s.); Image (+); VI (n.s.); RD (n.s.), TRI (n.s.) |
| Lee et al. (2011) | E-learning; survey; 566 employees | Behavioral intention (R2 = 0.51) | PU (+); CO (+); Complexity (=PEOU, -); Relative Advantage (=PU, +)OB (+); TR (+) | Via PU: PEOU (+);CO (+); Complexity (=PEOU, +); Relative Advantage (=PU, +)OB (n.s.); TRI (-) Via PEOU: CO (n.s.); Complexity (=PEOU, -); Relative Advantage (=PU, +)OB (n.s.); TRI (-) |
| Mun et al. (2006) | PDA acceptance; field study; 222 health care professionals | Behavioral intention (R2 = 0.57) | Perceived behavioral control (PBC) (+); PEOU (n.s.); PU (+); Subjective Norm (SN) (+) | Via PBC and SN: Personal Innovativeness (PI) (+) Via PU: PEOU (+); PI (+); RD (+); Image (+); SN (+) Via RD: PI (+) Via PEOU: PBC (+); PI (+); RD (+) |
| Park and Chen (2007) | Smartphone; survey, 133 medical doctors and nurses | Attitude Behavioral intention to use PU PEOU | PU(+); PEOU(+); CO(not tested); OB (+); TR (n.s.); Task (not tested); Individual (n.s.); Organizational (+); Environment (not tested) PU (+); Attitude (+); Self-efficacy (+) PEOU (+) Self-efficacy (+) | / |
| Tung et al. (2008) | Electronic logistic IS in the medical industry; survey; 252 nurses | Behavioral Intention (R2 = 0.70) | Perceived financial cost (-), CO (+); PU (+); PEOU (+); Trust (+) | Via PU: CO (+); PEOU (+); Trust (+) Via Trust: PEOU (+) |
| Wu and Wang (2005) | Mobile commerce; survey, 310 mobile commerce user | Actual use | BI (+) | Via BI: Perceived Risk (+); Cost (-); CO (+); PU (+); PEOU (n.s.) Via PU: CO (+); PEOU (+) |
| Wu et al. (2007) | Acceptance of Mobile health-care systems (MHS); survey; 123 health-care professionals | Behavioral intention | PU (+); PEOU (+); CO (+) | Via PU: PEOU (+); CO (+); MHS self-efficacy (+); Technical Support and Training (n.s.) Via PEOU: CO (+); Self-Efficacy (+); Technical Support and training (n.s.) |
| Zhou (2008) | Internet; survey; 773 journalists | Voluntary vs forced adopter Voluntary vs non-adopter Forced vs non-adopters | Relative Advantage (=PU, +); PEOU (+); Observability (-); PU (+); Image (n.s.); Among family members (+), among city residents (n.s.); Age (-); Gender (n.s.); education (n.s.); income (n.s.); Perceived popularity in occupation (n.s.); job title (-); media size (-); website construction (-); Internet connectivity (n.s.) Relative Advantage (=PU, +); PEOU (+); Observability (n.s.); PU (n.s.); Image (n.s.); Among family members (+), among city residents (+); Age (-); Gender (+); education (n.s.); income (n.s.); Perceived popularity in occupation (n.s.); job title (n.s.); media size (n.s.); website construction (n.s.); Internet connectivity (+) Relative Advantage (=PU, n.s.); PEOU (n.s.); Observability (n.s.); PU (+); Image (n.s.); Among family members (+), among city residents (n.s.); Age (-); Gender (+); education (n.s.); income (n.s.); Perceived popularity in occupation (n.s.); job title (+); media size (n.s.); website construction (+); Internet connectivity (+) |
| Study | Context, method, sample size(s) | Dependent variable(s) | Determinant(s) and findingsa | Mediation(s)/moderator(s) |
|---|---|---|---|---|
| World wide web; survey; 73 participants | Current Use ( | For current use: Voluntariness (−); | / | |
| Virtual stores; survey, 253 participants | Actual use | Behavioral intention (+) | Via BI: Attitude (+); | |
| Smart phone use within a delivery service company; survey; 274 employees | Behavioral intention (Model 4) | Via Attitude: | ||
| Information technology; cross-sectional field study; | Behavior intention to adopt ( | Adopt: Attitude (n.s.); Subjective norm (+); Perceived voluntariness (n.s.) | Via Attitude to adopt: | |
| E-learning; survey; 566 employees | Behavioral intention ( | Via | ||
| PDA acceptance; field study; 222 health care professionals | Behavioral intention ( | Perceived behavioral control (PBC) (+); | Via PBC and SN: Personal Innovativeness (PI) (+) | |
| Smartphone; survey, 133 medical doctors and nurses | Attitude | / | ||
| Electronic logistic IS in the medical industry; survey; 252 nurses | Behavioral Intention ( | Perceived financial cost (-), | Via | |
| Mobile commerce; survey, 310 mobile commerce user | Actual use | BI (+) | Via BI: Perceived Risk (+); Cost (-); | |
| Acceptance of Mobile health-care systems (MHS); survey; 123 health-care professionals | Behavioral intention | Via | ||
| Internet; survey; 773 journalists | Voluntary vs forced adopter |
Notes:
a Original TAM and IDT Components in bold; Studies using personal innovativeness were excluded from the overview
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