Nevertheless, "[t]he trial court has broad discretion on questions of relevance." State v. Watson , 26 Conn. App. 151, 156, 599 A.2d 385 (1991), cert. denied, 221 Conn. 907, 600 A.2d 1362 (1992).
Although defense evidence excluded on evidentiary grounds may give rise to a claim of denial of the rights to confrontation and to present a defense; Chambers v. Mississippi, 410 U.S. 284, 289-90, 93 S.Ct. 1038, 35 L.Ed.2d 297 (1973); a defendant is bound by the rules of evidence in presenting a defense. State v. Kelly, 208 Conn. 365, 375-76, 545 A.2d 1048 (1988); State v. Watson, 26 Conn. App. 151, 156, 599 A.2d 385 (1991), cert. denied, 221 Conn. 907, 600 A.2d 1362 (1992). Accordingly, if the proffered testimony is not relevant, it is properly excluded.
Expert testimony is admissible if "(1) the witness has a special skill or knowledge directly applicable to a matter in issue, (2) that skill or knowledge is not common to the average person, and (3) the testimony would be helpful to the court or jury in considering the issues. State v. Kemp, [supra]; see also State v. Spigarolo, 210 Conn. 359, 376, 556 A.2d 112, cert. denied, 493 U.S. 933, 110 S.Ct. 322, 107 L.Ed.2d 312 (1989); State v. Watson, 26 Conn. App. 151, 153, 599 A.2d 385 (1991), cert. denied, 221 Conn. 907, 600 A.2d 1362 (1992)." (Internal quotation marks omitted.)
The test for admissibility of expert testimony is whether "(1) the witness has a special skill or knowledge directly applicable to a matter in issue, (2) that skill or knowledge is not common to the average person, and (3) the testimony would be helpful to the court or jury in considering the issues." Id.; see also State v. Spigarolo, 210 Conn. 359, 376, 556 A.2d 112, cert. denied, 493 U.S. 933, 110 S.Ct. 322, 107 L.Ed.2d 312 (1989); State v. Watson, 26 Conn. App. 151, 153, 599 A.2d 385 (1991), cert. denied, 221 Conn. 907, 600 A.2d 1362 (1992). In State v. Spigarolo, supra, the state presented a social worker to testify that it is not unusual for alleged abuse victims to tell inconsistent stories.