Table 2.

Intercoder agreement on key analytical categories.*

Coding frame questionCohen’s κNumber (n) of valid cases
10a. Did the article discuss timelines for the realization of the clinical promise of stem cell research (e.g., in reference to clinical trials, breakthroughs in research, animal studies, veterinary medicine, experimental treatments/transplants)?0.67532
10b. If yes, what was the timeframe suggested?0.61332
14. What was the major theme of the article?0.71832
15. What was the overall perspective on the future of stem cell research presented by the article?0.70532
Mean κ score0.67732

*The level of agreement between coders was interpreted based on the Landis & Koch Benchmark Scale proposed in 1977. This scale has established the following as standards for strength of agreement denoted by κ: <0 = “poor,” 0.01 to 0.20 = “slight,” 0.21 to 0.40 = “fair,” 0.41 to 0.60 = “moderate,” 0.61 to 0.80 = “substantial,” and 0.81 to 1 = “almost perfect.”